Thursday

July 31, 2014

July 31, 2014

Number of results: 29,137

**physics**

an 800 N person stands on a scale in an elevator. What is his apparent weight when the elevator is accelerating upward at 2 m/s^2? B) what5 is his apparent weight when the elevator is acc. downward at 2m/s^2? c) what is his apparent weight when the elevator is moving downward ...
*February 20, 2007 by Sabrina*

**Physics**

A Ferris Wheel, 24.0 m in diameter, rotates once every 12.5s. What is the fractional change in a person's apparent weight: a) at the top, and b) at the bottom? I need to know if I'm doing this right. Here's my work: Equation Used: Net Force = [(4(pi)^2)(R)(M)] / [T^2] M=mass T...
*January 20, 2011 by Ricky*

**math**

A Ferris wheel 28.0m in diameter rotates once every 21.0s. What is the ratio of a person's apparent weight to her real weight at the top? What is the ratio of a person's apparent weight to her real weight at the bottom?
*October 2, 2009 by Confused*

**Tech Math**

A 490 newton woman stands on a bathroom scale while riding in a elevator that is accelerating downward at 2m/sec/sec. Find her apparent weight and her apparent mass. Compare to her starting mass.
*July 19, 2012 by Jennifer*

**Physic**

A person weighs 872 N in air and has a body fat percentage of 20.7%. a. What is the overall density of this person's body? b. What is the volume of this person's body? c. Find the apparent weight of this person when completely submerged in water.
*April 18, 2010 by Ann*

**physics**

A 640 N student stands on a bathroom scale in an elebator. As the elevator starts moving, the scale reads 800 N. a) find the acceleration of the elevator (magnitude and direction) b) acceleration if the scale reads 450N? c) If the scale reads 0 should the student worry? ...
*November 16, 2006 by Christina*

**AP Physics**

Hi im new so maybe one of you can help me understand this question, can't find it anywhere in the book. A person weighs 723N in air and has a body-fat percentage of 29.3% . What is the overall density of this person's body? What is the volume of this person's body? Find the ...
*December 3, 2009 by Danny*

**Physics**

Hi im new so maybe one of you can help me understand this question, can't find it anywhere in the book. A person weighs 723N in air and has a body-fat percentage of 29.3% . What is the overall density of this person's body? What is the volume of this person's body? Find the ...
*December 3, 2009 by Danny*

**Physics**

Early skeptics of the idea of a rotating Earth said that the fast spin of Earth would throw people at the equator into space. The radius of Earth is about 6400 km. Show why this objection is wrong by determining the following information. (a) Calculate the speed of a 94-kg ...
*December 3, 2012 by Caleb*

**physics**

Early skeptics of the idea of a rotating Earth said that the fast spin of Earth would throw people at the equator into space. The radius of Earth is about 6400 km. Show why this objection is wrong by determining the following information. (a) Calculate the speed of a 94-kg ...
*December 6, 2012 by Danny*

**Physics**

Early skeptics of the idea of a rotating Earth said that the fast spin of Earth would throw people at the equator into space. The radius of Earth is about 6400 km. Show why this objection is wrong by determining the following information. a.) Calculate the speed of a 103-kg ...
*November 30, 2011 by Matt*

**physics**

Early skeptics of the idea of a rotating Earth said that the fast spin of Earth would throw people at the equator into space. The radius of Earth is about 6400 km. Show why this objection is wrong by determining the following information. a.) Calculate the speed of a 103-kg ...
*November 30, 2011 by Jordan*

**PHYSICS**

Driving in your car with a constant speed of v = 11.7 m/s, you encounter a bump in the road that has a circular cross section, as indicated in the figure below. If the radius of curvature of the bump is r = 34.4 m, calculate the apparent weight of a 65.9 kg person in your car ...
*June 15, 2012 by Matthew Goldberg*

**physics**

What is the apparent weight of a 55 kg person in an elevator accelerating downward at 2.2 m/s2?
*January 20, 2014 by Marina*

**physics**

What is likely identity of a metal, if a sample has a mass of 67.5g when measured in air and an apparent mass of 59.5g when submerged in water?
*May 31, 2010 by fillemon*

**Physics**

A stunt pilot of mass 55.0 kg who has been diving her airplane vertically pulls out of the dive by changing her course to a circle in a vertical plane. A)If the plane's speed at the lowest point of the circle is 95.6 m/s , what is the minimum radius of the circle for the ...
*November 14, 2006 by Kuwaiti*

**physic**

Calculate the true mass (in vacuum) of a piece of aluminum whose apparent mass is 4.5000 kg when weighed in air.
*August 8, 2010 by Ash *

**Physics **

Calculate the true mass (in vacuum) of a piece of aluminum whose apparent mass is 1.6000kg when weighed in air.
*November 10, 2012 by Melissa *

**PHYSICS**

Zach, whose mass is 67 kg, is in an elevator descending at 12 m/s. The elevator takes 3.5 s to brake to a stop at the first floor. (a) What is Zach's apparent weight before the elevator starts braking? (b) What is Zach's apparent weight while the elevator is braking?
*June 19, 2011 by kate*

**Math Analysis**

What is the apparent size of an object 1 cm long held 80 cm from your eyes? ==> When they say "apparent size", they mean the angle from which one object is viewed by, say, a person (or in this case a pair of eyes). I thought I'd be able to find the angle by using the ...
*January 6, 2010 by Emily*

**physics**

Consider a 1kg mass at rest at the equator.Because of the earths rotation , the mass experiences a centripetal acceleration. a)Draw free body diagram of mass b)Find centripetal force acting in the mass c)Compare apparent weight and true weight d)what fictitious force would the...
*February 24, 2011 by Sandra*

**physics**

Persons A and B are standing on a board of uniform linear density that is balanced on two supports, as shown in the figure. What is the maximum distance x from the right end of the board at which person A can stand without tipping the board? Treat persons A and B as point ...
*April 10, 2011 by I need help*

**physics**

A geologist finds that a Moon rock whose mass is 9.97 kg has an apparent mass of 6.40 kg when submerged in water. What is the density of the rock?
*January 24, 2012 by B*

**Physics**

A pilot, whose mass is 91.0 kg, makes a loop-the-loop in a fast jet. Assume that the jet maintains a constant speed of 125 m/s and that the radius of the loop-the-loop is 0.478 km. What is the apparent weight that the pilot feels (i.e., the force with which the pilot presses ...
*December 24, 2013 by Dan*

**college physics**

two people are wearing harnesses and are hanging from the ceiling by means of ropes. they are face to face and push off eachother. person 1 has a mass of 100kg and person 2 a mass of 80 kg. after the push person 1 swings in an arc that causes hime to rise a height of .3 meters...
*October 28, 2009 by sara*

**Algebra**

The formula to compute a person's body mass index is B=703*w/h2 B represents the body mass index, w is the person's weight in pounds and h represents the person's height in inches. I need to: a. solve the formula for w. b. What is the weight to the nearest pound of a person ...
*October 14, 2009 by Tyler*

**Reading**

In the sentence "Ships have sunk for no apparent reason", would the word obvious, general,or simple best fit the word apparent?
*April 17, 2010 by Eliza*

**Physics**

A 83.0-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.80 m/s2
*October 3, 2010 by Xavier*

**physics**

A new type of spring is found where the spring force F is given by F=-kx + bx^2 where k=400 N/ m and b=100 N/m^2 and x is the expansion (or compression) of the spring from its equilibrium position. The spring is attached to a point mass of 1 kg sitting on a horizontal ...
*April 4, 2011 by Physics*

**physics**

How would an astronaut in apparent weightlessness be aware of her mass?
*November 9, 2009 by Ryan*

**physics**

How would an astronaut in apparent weightlessness be aware of her mass?
*November 9, 2009 by Ryan*

**Physics**

If the radius of curvature of the bump is r = 29 m, find the apparent weight of a 60 kg person in your car as you pass over the top of the bump at 12 m/s.
*January 7, 2010 by Rachelle*

**physics**

Which is true as one gets closer to the center of the earth? a. The person’s weight increases b. The person’s weight decreases c. The person’s weight remains the same d. The person’s mass changes e. A new dimension is discovered
*May 6, 2010 by jude*

**physic**

A Ferris wheel 26.0m in diameter rotates once every 15.0s . What is the ratio of a person's apparent weight to her real weight at the top?
*July 13, 2013 by cuzer*

**physic**

A Ferris wheel 26.0m in diameter rotates once every 15.0s What is the ratio of a person's apparent weight to her real weight at the top?
*July 11, 2013 by cuzer*

**physic**

A Ferris wheel 26.0m in diameter rotates once every 15.0s What is the ratio of a person's apparent weight to her real weight at the top?
*July 12, 2013 by cuzer*

**maths**

The ‘body mass index’ is used to find the body weight that is appropriate for a person’s height. It is calculated using the formula. I = W (I = W divided by H squared) H 2 Where I is the body mass, W is the person’s weight in kg, and H is the person’s height in metres. If the ...
*May 12, 2007 by katie*

**Astrophysics**

(a) From the absorption lines, we were able to determine that the star (phi)-Fictus has spectral classification F7V and color index B-V=0/48. What is the mass M(phi) of the star in solar masses? (b) Spectroscopic parallax, when corrected for reddening, yields a distance of 4.5...
*February 2, 2010 by O_o Rion*

**Physics ~please help me~**

1.) Two people of the same mass climb the same flight of stairs. The first person climbs the stairs in 25 s; the second person does so in 35 s. a) Which person does more work?Explain b) Which person produces more power?Explain 2.) Lee pushes a 20 kg mass 10 m across a floor ...
*March 9, 2013 by Isis*

**Physics**

Two people push on a box that has a mass of 10kg, the person on the right has a mass of 86kg and applies a horizontal force of 50N. The person on the left has a mass of 45kg. The coefficient of kinetic friction between the box and the floor is .2, the coefficient of static ...
*November 25, 2012 by Tim*

**Physics**

Two people push on a box that has a mass of 10kg, the person on the right has a mass of 86kg and applies a horizontal force of 50N. The person on the left has a mass of 45kg. The coefficient of kinetic friction between the box and the floor is .2, the coefficient of static ...
*November 25, 2012 by Tim*

**Physics **

A Ferris wheel is 60 meters in diameter and rotates once every 12.5s. what is the ratio of a person's apparent weight to her real weight (a) at the top, and (b) at the bottom?
*October 23, 2013 by Sidney*

**physics**

A person of mass m jumps off the ground. Suppose the person pushes off the ground with a constant force of magnitude F for T seconds. What was the magnitude of the displacement of the center of mass of the person while they were in contact with the ground? Express your answer ...
*October 24, 2013 by Anonymous*

**Physics**

You take a ride in a fast elevator to the top of a tall building and ride back down while standing on a bathroom scale. During which parts of the ride will your apparent and real weights be the same? During which parts will your apparent weight be less than your real weight? ...
*January 14, 2013 by Billy*

**Chem**

Naturally occurring cobalt consists of only one isotope, cobalt59, whose relative atomic mass is 58.9332. A synthetic radioactive isotope of cobalt60, relative atomic mass 59.9338, is used in radiation therapy for cancer. A 1.8155 sample of cobalt has an apparent "atomic mass...
*August 29, 2011 by Aidan*

**PLEASE HELP ME! CHEMISTRY**

Naturally occurring cobalt consists of only one isotope, cobalt59, whose relative atomic mass is 58.9332. A synthetic radioactive isotope of cobalt60, relative atomic mass 59.9338, is used in radiation therapy for cancer. A 1.8155 sample of cobalt has an apparent "atomic mass...
*August 29, 2011 by Aidan*

**physics**

find the apparent weight of a 18 cm by 12 cm by 6 cm block of concrete with a mass of 1.82 kg that is submerged under water.
*January 18, 2012 by james *

**AP Physics - Linear Momentum**

During a Chicago storm, winds can whip horizontally at speeds of 100 km/h. If the air strikes a person at the rate of 40 kg/s per square meter and is brought to rest, estimate the force of the wind on a person. Assume the person is 1.50m high and 0.50m wide. Compare to the ...
*October 16, 2009 by Henry*

**science**

a passenger in a ferris wheel rates 3m/s in a vertical circle of radius 5m. find the apparent the ratio of his apparent weight to his true weight at the top and bottom of the circle
*May 17, 2012 by neliswa*

**physics**

The force of gravity between two people is 4.9 x 10-13 Newtons. Person 1 has a mass of 61.3 kilograms, and person 2 has a mass of 93.5 kilograms. The value of G is 6.67 x 10-11 m3/s2 kg. How far apart are they from each other?
*October 12, 2011 by ray*

**physics**

JUMPING OFF THE GROUND (10 points possible) A person of mass m jumps off the ground. Suppose the person pushes off the ground with a constant force of magnitude F for T seconds. What was the magnitude of the displacement of the center of mass of the person while they were in ...
*October 25, 2013 by Anonymous*

**physics (elena)**

JUMPING OFF THE GROUND (10 points possible) A person of mass m jumps off the ground. Suppose the person pushes off the ground with a constant force of magnitude F for T seconds. What was the magnitude of the displacement of the center of mass of the person while they were in ...
*October 24, 2013 by Anonymous*

**Physics**

A crate of mass 59 kg is pushed across a level floor by a person. If the person exerts a force of 30 N in the horizontal direction and moves the crate a distance of 12 m, what is the work done by the person?
*July 11, 2012 by Sierra*

**Physics 1**

A crate of mass 42 kg is pushed across a level floor by a person. If the person exerts a force of 20 N in the horizontal direction and moves the crate a distance of 11 m, what is the work done by the person? _____J
*October 8, 2012 by John *

**maths**

The ‘body mass index’ is used to find the body weight that is appropriate for a person’s height. It is calculated using the formula. I = W/H^2 Where I is the body mass, W is the person’s weight in kg, and H is the person’s height in metres. Use the formula to find the body ...
*May 9, 2007 by katie*

**chemistry**

Naturally occurring cobalt consists of only one isotope Co59 whose relative atomic mass is 58.9332. A synthetic radioactive isotope of cobalt Co60, relative atomic mass 59.9338, is used in radiation therapy for cancer. A 1.8516 sample of cobalt has an apparent "atomic mass" of...
*June 30, 2012 by Candace*

**PHSYICS 12 HELP PLEASE!**

Determine the specific gravity of a fish which masses 320g in air and has an apparent mass of 21g in water
*June 3, 2012 by VIJ*

**chemistry**

Naturally occurring iodine has an atomic mass of 126.9045. A 12.3849 -g sample of iodine is accidentally contaminated with 1.00070 g of ^129 I, a synthetic radioisotope of iodine used in the treatment of certain diseases of the thyroid gland. The mass of ^129 I is 128.9050amu...
*September 8, 2010 by Mely*

**PHYSICS**

1. What is the weight of a 2.88 kg snake? 2. A girl drops a rock straight down from a bridge. Assume negligible air resistance. How fast is it going 4.0 s later? 3. A rock with a mass of 22.45 kg is falling from a tall tower. a. What is the Net Force if the rock is in free ...
*December 21, 2012 by Hayden*

**physics**

driving in a car with constant speed of 12m/s,then encounter to a bump that has a circular cross-section and a radius of 35m.find the apparent weight of a 70 kg person in the car over the top of bump
*August 17, 2012 by emy*

**Physics**

A 70 kg person stands on a 30 kg platform and pulls on a massless rope with a force of 400 N. The rope passes around a pulley attached to a support (roof), and then around a second pulley attached to the platform before being anchored to the support (roof). All sections of the...
*January 22, 2013 by Adam*

**Physics 11**

Two people start running from rest. The first person has a mass of 59 kg and is wearing dress shoes with a coefficient of static friction of 0.52. The other person is wearing running shoes with a coefficient of static friction of 0.66. Explain why we do not really need the ...
*March 31, 2013 by Anonymous*

**physics**

Suppose all the people of the Earth go to the North Pole and, on a signal, all jump straight up. Estimate the recoil speed of the Earth. The mass of the Earth is 6 1024 kg, and there are about 6 billion people (6 109). Take the average mass of a person to be 74 kg and the ...
*February 10, 2012 by marcos*

**Physics**

While running, a person dissipates about 0.60 J of mechanical energy per step per kilogram of body mass. If a 61-kg person develops a power of 75 W during a race, how fast is the person running?
*October 12, 2013 by Anonymous*

**Physics**

Imagine that a person is seated in a chair that is suspended by a rope that goes over a pulley. The person holds the other end of the rope in his or her hands. Assume that the combined mass of the person and chair is M. What is the magnitude of the downward force the person ...
*January 16, 2012 by T*

**physics**

Driving in your car with a constant speed of 12 m/s, you encounter a bump in the road that has a circular cross-section. If the radius of curvature of the bump is 35 m, find the apparent weight of a 63-kg person in your car as you pass over the top of the bump.
*March 6, 2011 by Randy*

**physics**

A(n) 86.6 kg person throws a(n) 0.06 kg snow- ball forward with a ground speed of 42.3 m/s. A second person, of mass 41.5 kg, catches the snowball. Both people are on skates. The first person is initially moving forward with a speed of 2.06 m/s, and the second person is ...
*June 24, 2013 by redwolf*

**physics**

A 0.52 kg piece of wood floats in water but is found to sink in alcohol (specific gravity = 0.79) in which it has an apparent mass of 0.040 kg. What is the SG of the wood?
*November 27, 2008 by completely lost!*

**Physics**

A rocket blasts off from rest and attains a speed of 42.2 m/s in 10.9 s. An astronaut has a mass of 63.8 kg. What is the astronaut's apparent weight during takeoff?
*December 12, 2012 by shine*

**Physics **

A rocket blasts off from rest and attains a speed of 30.4 m/s in 10.3 s. An astronaut has a mass of 60.1 kg. What is the astronaut's apparent weight during takeoff?
*February 13, 2013 by Randy*

**physics**

A man of mass 60kg standing inside a lift with an acceleration of 2m/s(square).Find the apparent weight that a man feels(g is 10).
*December 18, 2013 by joelinho*

**physics**

Driving in your car with a constant speed of 12 m/s, you encounter a bump in the road that has a circular cross section. If the radius of curvature of the bump is r = 34 m, find the apparent weight of a 60 kg person in your car as you pass over the top of the bump in Newtons.
*December 6, 2009 by Dave*

**engineering science**

If a person has a mass of 83 kg, what will that person weigh in newton
*January 31, 2012 by kabelo*

**Physics**

A rock weighs 140 N in air and has a volume of 0.00273 m3. What is its apparent weight when sub- merged in water? The acceleration of gravity is 9.8 m/s2 . Answer in units of N. If it is submerged in a liquid with a density exactly 1.9 times that of water, what will be its new...
*November 28, 2010 by Laura*

**physics**

An object with 15 grams mass is immersed in benzene and suffers an apparent loss of mass 5g What is the approximate specific gravity of the object? (specific gravity of benzene = 0.7)
*June 20, 2011 by Anonymous*

**physics**

You are an astronaut (m = 80 kg) and travel to a planet that is the same mass and size as Earth, but it has a rotational period of only 11 h. What is your apparent weight at the equator of this planet?
*November 1, 2011 by tamara*

**physics**

You are an astronaut (m = 90 kg) and travel to a planet that is the same mass and size as Earth, but it has a rotational period of only 15 h. What is your apparent weight at the equator of this planet?
*October 4, 2012 by Garcia*

**Physics**

Driving in your car with a constant speed of 12 , you encounter a bump in the road that has a circular cross-section, as indicated in the figure . If the radius of curvature of the bump is 35 , find the apparent weight of a 70- person in your car as you pass over the top of ...
*November 3, 2011 by Chris*

**English**

1. Take exercise on a regular basis, and you will be a happy person. 2. Earn a lot of money, and you will be a happy person. 3. Drive in the country, and you will be a happy person. 4. Play the violin, and you will be a happy person. 5. Play soccer with your friends, and you ...
*April 18, 2014 by rfvv*

**physics**

IF A PERSON'S WEIGHT IS 850 N WHAT IS THE PERSON'S MASS IN KG?
*January 31, 2010 by LADY27*

**physics**

Bird bones have air pockets in them to reduce their weight–this also gives them an average density significantly less than that of the bones of other animals. Suppose an ornithologist weighs a bird bone in air and in water and finds its mass is 43.0 g and its apparent mass ...
*April 10, 2014 by Paige*

**Chemistry**

If 395.3 g of a substance is dissolved in 872.6 g of cyclohexane solvent, the boiling point of the solution is 87.38 oC. Calculate the apparent molar mass (g/mol) of substance.
*May 4, 2009 by Tylor*

**chemistry**

If 1373 g of a substance is dissolved in 2315 g of cyclohexane solvent, the boiling point of the solution is 87.69 oC. Calculate the apparent molar mass (g/mol) of substance.
*January 31, 2010 by eng*

**chemistry**

If 1373 g of a substance is dissolved in 2315 g of cyclohexane solvent, the boiling point of the solution is 87.69 oC. Calculate the apparent molar mass (g/mol) of substance.
*January 31, 2010 by eng*

**Chemistry**

If 406.6 g of a substance is dissolved in 879.1 g of cyclohexane solvent, the boiling point of the solution is 87.52 oC. Calculate the apparent molar mass (g/mol) of substance.
*March 2, 2010 by adam*

**Physics(Please respond)**

An object is solid throughout. When the object is completely submerged in ethyl alcohol, its apparent weight is 15.8 N. When completely submerged in water, its apparent weight is 13.0 N. What is the volume of the object? Would I start by doing 15.8 - 13?
*June 20, 2012 by Hannah*

**phisics**

A person of mass 65 kg is ascending on an escalator at a constant velocity of 2.5 m/s [22°above the horizontal]. Why The magnitude of the net force acting on the person is 0 N
*December 3, 2011 by oksana*

**physics**

there is a massless rope that is pulled over a frictionless pulley that is suspended high above the ground one end of the rope is tied to a heavy block with a mass of 483 kg the free end is climbed by a person with a mass of 102 kg who starts from rest. If during the time of ...
*October 22, 2011 by Joe*

**Physics**

A person of mass 55 kg stands at the center of a rotating merry-go-round platform of radius 3.4 m and moment of inertia 670 kg·m2. The platform rotates without friction with angular velocity 1.0 rad/s. The person walks radially to the edge of the platform. (a) Calculate the ...
*January 23, 2011 by Sierra*

**chemistry**

1)If 746.4 g of a substance is dissolved in 1723 g of benzene solvent, the freezing point of the solution is -9.19 oC. Calculate the apparent molar mass (g/mol) of substance. 2) What mass ( g ) of the solvent water should be mixed with 0.008595 L of the solute ethylene glycol ...
*January 20, 2010 by bubble*

**Chemistry**

Does anyone know how to do this problem, i can't seem to solve it. If 39.25 g of a substance is dissolved in 155.5 g of benzene solvent, the freezing point of the solution is 0.08 oC. Calculate the apparent molar mass (g/mol) of substance.
*February 2, 2010 by SuSu*

**Physics**

In a ferris wheel, one person is at the top and another at the bttom. The ferris wheel rotates such that the magnitude of the tangetial velocity of each person is equal |v|top=|v|bottom. Determine for the person at the bottom, the force the seat exerts on the person. Use a ...
*October 26, 2009 by rasuka_geo*

**Physicss**

Chapter 4, Problem 40 A 94.9-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 2.30 m/s^2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1...
*February 2, 2011 by Tiffany*

**Physics**

A 72.0-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.80 m/s2, N (b) moving upward at a constant speed, and N (c) accelerating downward with an acceleration of 1.30 m/s2? N I just ...
*September 17, 2007 by NHS*

**Physics**

Chapter 4, Problem 36 Incorrect. A 77.2-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.66 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an ...
*December 12, 2012 by shine*

**Physics**

A 97.0-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.70 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.80 m/s2?
*February 18, 2008 by Zach*

**Physics**

74.0-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.10 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.00 m/s2?
*September 8, 2008 by Lisa*

**physics**

A 84.5-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.93 m/s 2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.57 m/s2?
*June 9, 2012 by Anonymous*

**Physics**

A 96.6-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.79 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.14 m/s2?
*November 13, 2012 by Tim*

**Astronomy**

For this question assume the moon is 110 of its diameter away from the Earth. The largest apparent size of Mercury that we ever see in the sky is 1/150 the apparent diameter of the Moon. The diameter of Mercury is about 4900 km. What is the closest that the Earth and Mercury ...
*August 27, 2013 by Elisabeth*

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