Posts tagged Rest

A student stands on a bathroom scale in an elevator at rest on the 53th floor of a building. ?

1

Question : A student stands on a bathroom scale in an elevator at rest on the 53th floor of a building. ?
The scale reads 867 N.

As the elevator moves up, the scale reading increases to 991 N, then decreases back to 867 N. Find the acceleration of the elevator.

As the elevator approaches the 63th floor, the scale reading drops to 683 N. What is the acceleration of the elevator?
floor scale

Best answer:

Answer by Blair A
using Newtons 2nd law of motion we find that F(unbalanced) = ma

Weight = mg
mass = weight/gravitational field strength

mass = 867/9.81(assuming hes on earth)

mass = 88.4kg.

F(unbalanced) = 991 – 867 = 124 N

124 = 88.4 x a

a = 1.4 m/s/s

same again for part b)

mass = 88.4kg

Fub = 683 – 867 = -184 (- implies direction)

a = -2m/s/s or deceleration by 2 m/s/s whatever u want

Cheers
Blair

I have a bed frame that requires adjustable sliding support members that rest upon cleats. Where can I . . .?

0

Question : I have a bed frame that requires adjustable sliding support members that rest upon cleats. Where can I . . .?
find more of these metal components to give added support? And yes I realize that the bed frame will be supporting the same amount of weight regardless of how many members there are. But with only two, the metal support members are sagging. Can I buy more of these metal pieces? What are they called? Thanks.
adjustable bed frame

Best answer:

Answer by William M
I don’t know where you can get them, but a very good substitute is a worm type hose clamp. They come in different sizes and you probably need 2″. Just be sure and tighten them down good, then jump on the bed and re tighten. Works great!

A student stands on a bathroom scale in an elevator at rest on the 64th floor of a building. The scale reads 8

0

Question : A student stands on a bathroom scale in an elevator at rest on the 64th floor of a building. The scale reads 8
As the elevator moves up, the scale reading increases to 935 N, then decreases back to 828 N. Find the acceleration of the elevator.

As the elevator approaches the 74th floor, the scale reading drops to 782 N. What is the acceleration of the elevator?
floor scale

Best answer:

Answer by M&M
Well, F=ma
since at rest, the acceleration is 9.8m/s^2 (some ppl just round to 10), you can find the mass, which would be 84.49 (if you used 9.8) or 82.8 (if you used 10)
Now that you know the mass, you can use it at different forces to determine the acceleration.
So in the first one, the new force is 935. the mass is still the same, so use F = ma again to determine the a, which would be 11.3 if you use a mass of 82.8 or 11.1 if you used 84.5.
BUT!!! you have to take in account the acceleration of gravity on the force put against the scale. So you subtract gravity away, and the acceleration is only 1.3 (regardless of which gravity and weight you used as long as you matched them)

For the second one, it’s the same but the opposite. the difference in force is the difference in acceleration.

student stands on a scale in an elevator at rest on the 64th floor of a building. The scale reads 834?

0

Question : student stands on a scale in an elevator at rest on the 64th floor of a building. The scale reads 834?
As the elevator approaches the 74th floor, the scale reading drops as low as 755 N. What is the acceleration of the elevator?
floor scale

Best answer:

Answer by bolexisist
first find the mass of the person, when the elevator is at rest the only acceleration is that of gravity

F = mg
834 = 9.81 m
m = 85 kg

next, when the elevator is moving the accel of the elevator is pointing up, while the accel of gravity is pointing down, so the total accel is the difference between the two

F = m(g – a)
F = mg – ma
755 = 834 – 85a
a = 0.93 m/s^2

A student stands on a bathroom scale in an elevator at rest on the 64th floor of a building. The scale reads 8?

0

Question : A student stands on a bathroom scale in an elevator at rest on the 64th floor of a building. The scale reads 8?
A student stands on a bathroom scale in an elevator at rest on the 64th floor of a building. The scale reads 839 N.

(a) As the elevator moves up, the scale reading increases to 949 N, then decreases back to 839 N. Find the acceleration of the elevator.

(b) As the elevator approaches the 74th floor, the scale reading drops to 782 N. What is the acceleration of the elevator?
floor scale

Best answer:

Answer by kuiperbelt2003
we will apply newton’s second law; the forces acting on the scale are the normal force (up), weight (down) and these combine to produce an ma term, in other words

N-mg = ma

the scale reading measures the normal force.

if the reading at rest is 839N, the student’s mass is
839N/9.8m/s/s = 85.6kg

a) N-mg = ma

if N=949, we have

949 = mg+ma

949=85.6g+85.6a
a=1.28m/s/s in the positive direction

b) if N=782N, then

782=mg+ma
782-85.6g=85.6a
a=-0.66m/s/s (slowing down as it approaches the floor)

Drive Medical Blue Streak Wheelchair with Flip Back Detachable Desk Arms and Swing-away Foot Rest, Blue, 18″

4

  • Flip-back, padded desk length arm
  • Comes with a calf strap
  • Swingaway footrests
  • Solid rubber tires
  • Nylon upholstery

Blue powder coated frame, black cross brace. Flip back, padded desk length arm. Nylon upholstery is durable, lightweight, attractive and easy to clean. Solid rubber tires mounted on composite wheel provides durability and low maintenance. Comes with push to lock brakes. Comes with calf strap. Swing away footrests with plastic footplates come standard.

Rating: (out of 4 reviews)

List Price: $ 286.00

Price: $ 113.52

Exactly how much rest could be enough?

0

Ellen Carroll offers autonomy often asked this particular query is correct: to help specifically to the members of the family of the woman to gain, how much peace they want. Use of a boy on the inside with an infant daughter in high school, a man who works more than 55 hours per week, and an aging mother and father, one with Parkinson’s disease, the family Ellen the gamut when it comes to Age comes and sleep needs. Since all members of the family of Ellen get busy lives, they often give to their particular sleep needs before other points. In addition to Ellen convince them the girl to relatives, which, after the right amount connected with the rest of important, but also your lover to discover just how much sleep people really need this!

If you are happy at home with his wife Ellen, you can read about his experience as to when exactly “pretty enough” in his sleep involved confused. While the media says with news organizations being often much sleep, it can be confusing to you exactly how to get endless snooze you need and as you know, if you are well rested. Keep reading and we will discuss methods to help make informed decisions about your peace and his family.

believe in what not to analyze, in terms of time setting

The first thing experts is that there is absolutely no amount of sleep “magic”. have nearly the different age groups involved in various sleep is to sleep, but individually. Just as the qualities that you supplied with the amount of sleep you need more nice feature might be different for you personally as someone the same age and sex of the opposite category. While you may be better with the key several hours a night, a different person need nine hours of course content have a new and fruitful life. The truth is, all the research in 2006, the belief that sleep test requirements across the spectrum of the population, and also, further studies established needed to provide the qualities of the genes within an organism to identify “map” to explain how sleep for different people.

Another excuse is “There is no longer a miracle” results for the snooze a couple of different components with which the officers are usually on understading: sleep an individual needs basis and the amount of sleep of the body frequently with regard to the overall ideal – credit card debt and sleep, sleep routine accumulated transferred to you is low, disease, caused by friendly alarm components to the environment or maybe a few other titles. A pair of reports to inform you that healthy adults need a very basal sleep at 8:00 on a key have each night, but in the article can be complex to purchase between the basal actual needs and the credit card debt discussion remains. As an example, you can use the basic sleep on any kind of weather one night or maybe a handful of nights combine Later, however, another account is open, feel more tired and sometimes to tell a small amount, especially along the dips circadian time of individuals in the 24-hour cycle if we are to be wired biologically much more tired and also a warning smallest amount, as the time during the night and in the afternoon. You could actually feel really solid sleep suddenly at these times, few in the same time, and tired from the experience. Fortunately, several studies show that sleep debt were purchased by credit card, may well be useful or may be “paid.”
Although experts are still learning about the idea with basal remains
have something of analysis shows definitely not enough sleep can reduce the productivity and the ability to remember and combine that info, not enough sleep can also threaten serious consequences of well-being and safety and cause the safety of the people around you.

is, for example, the period of repetition with small:

* Level of threat associated to motor vehicles on how

* Boost catalog Rapid Mass Physics: a greater chance of obesity by an increased demand for food caused by sleep deprivation are associated

* High risk in all forms of diabetes and cardiovascular diseases

* Extremely high risk in terms of psychiatric disorders such as depression and drug abuse

* reduces the ability of consciousness, responding to signals or remember new details on

Jordanian workers in the research based on that they wanted. Bonnet and Donna L. Arand, “There is sufficient evidence actually reduce performance and sleep disturbances with the share price feeling compromise the overall performance and the overall health and can cause injury or even death. On this sweet, a common sense” not detrimental to the health advice “would be to remove from lack of sleep.”
have />

“Currently there are no facts relies heavily on the terrible adverse consequences of well-being, or perhaps our figures show gives people a lot of rest Besides that, what is essential,” said Kristen L. Knutson, Ph . D., with respect to the section Wellness Research, University of Chicago. “There are actually connected in the laboratory and the rest have 4-5 hours Quick negative physiological and neurological outcome. We want to look for any similar laboratory and treatment, to review whether or not to travel long pause (if they can put at risk) changes in physiological state over to help us out as good as all references could come drawbacks is expandable. “

is just too strong and needed. Researchers Shawn Youngstedt Daniel Kripke 2 ratings over 2 million adults in most cancers of the modern American society examined and watched as the team that gets seven more hours of inevitable small amount, after half a dozen years rested compared to those much less sleep . The party of the people who sleep more quickly and lay people, as compared to nine hours a threat mortality rate that was more normal, but the threat was ultimately more thresholds. Youngstedt Kripke and disputes in which people would normally sleep for more than 8 hours to several, the restriction of their own quiet actually better for the children like to eat under the control of a person for food could be much healthier than in a community sendentary .

exactly what the body needs about Snooze declare

After review of the research, the next step in the determination of the need for sleep a “snapshot” of the behavior of sleep. Ellen began the search for that in terms of quality sleep every member of the family routines as well as their own actions in the day. Here is what your wife has discovered:

your child had ex teenagers do a lot of fun during the night: it was dynamic, and in addition to mood, Cat again enjoy with his family at a dinner, the talking on the phone with friends, the girl and the compression of the PC connected with an hour of television. When Ellen could try to acquire the woman too far from mattresses, she growls, in which she could not feel exhausted. However, all alarm system, the woman can lead the way inside once more days in the school with half a dozen: 25 ‘m, daughter of Ellen Terri was not pleasant to be with. Irritable exhausted and unhappy, Terri would be in school spirit with a negative start to the day, not for the fact that your wife has problems remaining inside sleep while the woman be silent. Everything Ellen and Terri could not understand, is Terri and biology era also play a role in his behavior is big. As a teenager tempos circadian women are being targeted in the rule “up” and later in the evening and even after waking up the next day. Accordingly reads 10:00 all felt too early is for the young girl’s body with half a dozen: After m 25 ‘until the time certainly not with the existing Calendar Girl sleep and wakefulness. Although the biggest challenge is that young people want today and not much sleep less than nine hours a night, which is difficult to have much that every time the field of biology states “remain the top end” and said that colleges begin early.

Ellen certainly no idea of what a boy younger girl can still hungry. In fact, your wife is thinking, sleep deprivation occurs when you overload the “Night Owl” juveniles or adults, not really a 4 years! Everything Ellen does not recognize any, that young people want from extra rest compared to their older brothers rested well in everything. Estimation of power, associated in young children (3-5 years) 11-13 a time to sleep, while 12 students want as much as the era of 10-11 hours connected with the rest. Child of Ellen Josh the ability to adapt to the routine of his beloved late evening and usually does not sleep: in fact, if the person falls into the bed in the car, it is generally about his bedtime, or even the right day after the acquisition of their needed rest. After “program is linked with the budget,” Your husband is on usually drive snooze. However, what has to be in stock and whimpering in many cases it has explosions, or exceeded.

As a young mother on a couple of quarantine in the young girl, Ellen used to be able to sleep loved girls are victims, the individual participation of woman. Your wife crushed within a day’s work is occupied with many charged with trying to do to the house, and just hang back with their children and the people. With the end of the day, whether it is exhausted, but not for you, go around and do not want peace. As a girl, Ellen was also distinctive sleep by each family is suffering girl. Ellen’s behavior is sleeping through several changes over the girls’ lives have been. As a woman pregnant with her transformed peace requires from all sides, fought with your loved one typical questions snooze while lower for pregnant heartburn, such as leg cramps, pain, and snoring. Since technical Ellen menopause, it is to remain the face similar difficulties, warm feelings and may experience loss of sleep.

partner Ellen Roger is often an active professional who normally uses the first days of the long evening delayed the work. If it does not work, often think that your friend works, and this offer has a lot of sleep disorders and insomnia nights. Absence of Roger’s sleep begins to show, and it hurts, time with family and enjoy offers lost their will to exercise, as he used to. This routine all varieties vicious circle, because much less Roger sleeps a lot more likely that it may be, you can eat. Studies have shown to improve links between the urge for food and the lack of sleep due to human hormones, develops, if you are short on sleep have been. This is not easy, because of weight, but his lack of sleep and weight gain can have significant health problems such as the displacement of apnea cause is to bring, heart failure, diabetes mellitus and stroke. Roger is aware that most of the large number of people need to experience 7-9 hours rested, but it was difficult to extinguish, “” his brain at the end of the day, especially for sleep, he or she needs.

Ellen PD offers and meetings of various issues related to specific peace. Regardless of their health sound, with a high his rest has a different approach if the person was younger. For example, that older people spend almost no time in deep sleep, and are likely therefore lead with less effort and perhaps awake. On the other hand, used their typical raises full rest a little later with the age of sixty-five today to share some of the older seniors own their normal sleep and snooze function with naps during the night. Siesta, however, could reduce the need for actual sleep during the night, and many older people complain of difficulty falling asleep or perhaps even in bed. Not enough exercise could please throw a toll on poor sleep and medications as drugs that cause drowsiness particular person and would also like to take a nap during the day instead. Such problems should be discussed, in order to have a health care professional.

How can you say, then sleep should fluctuate around age groups and are designed based on the lifestyle and wellbeing. Therefore, to know how much sleep you need, you have to judge whether you not only to sleep “Hit requires the spectrum, but also to consider what elements of lifestyle are usually to the detriment of the quality of the product and also the level of own sleep, such as the exploitation of living with fear. For your peace of mind you need, you need to extract the big picture.

For more information, please visit .. Like .. rest is really enough?

Chicago Eating Disorders

My mother has osteoporosis in the hip, you should rest, or what?

1

Hello, My mother has osteoporosis in the hip and do not know whether to relax or walk or something, but she is hurt sooo they only schlecht.Sollte th hip replacement? Thank need in advance.

Night-Time Skin Care. There’s No Rest for the Weary

0

It’s an urban myth that skin goes to sleep at night. So let’s FACE THE FACTS.

There are a lot of reasons why skincare products need to be applied at night. In fact, it can be easily argued that nighttime products are more important than daytime, because that’s when the skin repairs itself.

You may be tired, you may be stressed. But nighttime skincare is important. And it only takes a minute.

Zein Obagi, MD

Visit Us on the Web Today! at http://www. zoskinhealth. comOr our Twitter updates at:  http://www. twitter. com/ZOSkinHealth

Learn How to Stop Panic Attacks for the Rest of Your Life

0

Afraid that you will be driving along and find that your palms are sweaty, your heart is racing, and you are having difficulty breathing? The first time you may have thought you were having a heart attack, but in reality what you need is aid for a panic attack and to learn how to stop panic attacks. Many people try for years to learn how to stop panic attacks but are not able to find a cure that works long term and cures them forever. This is why you may be interested to learn that there is one website that does offer you lessons on how to stop panic attacks.
The reason that website is able to help you learn how to stop panic attacks when other sources have failed is because they get to the root of why panic attacks happen. The technique behind the information on how to stop panic attacks is based on cognitive psychology which shows that fear is the actual reason that most people have panic attacks. The fear of the unknown can actually trigger panic attacks and so ironically your fear of having another panic attack may be the reason why you keep suffering from random panic attacks that can happen at any time.
Thus in order to truly learn how to stop panic attacks you have to learn how to prevent the fear of your next panic attack from taking control of your life. This is the actual difference between someone who knows how to stop panic attacks and somebody who is simply looking for a cure without any success. It can be hard to learn this on your own which is why you will want to head to this website to read up on how to stop panic attacks forever. For more info visit PanicAttackTreatments. net
For those who are skeptical you may want to check out the testimonials of hundreds of people who have headed to this website and have learned how to stop panic attacks. It does not matter how long you have been suffering from panic attacks or how often they occur because with this information you can learn how to stop panic attacks for the rest of your life no matter the severity of your panic attacks. However, every minute you waste thinking about how nice life would be without panic attacks is wasted until you head over to the website and learn how to stop panic attacks.
That’s right, after a visit to this website you can know the technique that will teach you how to stop panic attacks for the rest of your life. No more sweaty palms, nervous apprehension over when the next panic attack could occur or a racing heartbeat. Once you learn this stunning technique about how to stop panic attacks your nights and days will be free from the condition that may have placed your life temporarily on hold. So stop sweating the little things, seriously, and head to this website so that you too can be another person who learns how to stop panic attacks by visiting PanicAttackTreatments. net

Learn How to Stop Panic Attacks Now using the method which has helped thousands of people by visiting www. PanicAttackTreatments. net

Go to Top