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September 28, 2016

# Search: How much force does an 82.0 kg astronaut exert on his chair while sitting at rest on the launch pad

Number of results: 61,449

physics
A car traveling at 62 km/h hits a bridge abutment. A passenger in the car moves forward a distance of 58 cm (with respect to the road) while being brought to rest by an inflated air bag. What magnitude of force in newtons (assumed constant) acts on the passenger's upper torso...
March 7, 2011 by Mary

Physics
A projectile is fired with an initial speed of 28.0 m/s at an angle of 65 degrees above the horizontal. The object hits the ground 9.5 seconds later. a) How much higher or lower is the launch point relative to the point where the projectile hits the ground? b) To what maximum ...
October 19, 2011 by Sara

physics
1. A ball moving horizontally clears a net 2 meters high. What maximum speed can it have if it is to fall within 5 meters of the net? 2.A pulley system lifts a load of 800 Newtons, 20 centimeters while the rope pulling it moves 100 cm. a. How much force must be applied to lift...
October 18, 2011 by mimi

Physics
A worker pushes 25Kg crate a distance of 5m along a level floor at constant velocity by pushing horizontally on it. The coefficient of kinetic frication between the crate and the floor is 0.23. (a) What magnitude of force must the worker apply? (b) How much work is done on the...
November 2, 2011 by Abdul Waheed

physics
A thin uniform stick having a mass of 0.680 kg and a length of 1.50 m is at rest, hanging vertically from a strong, fixed hinge at the uppermost end of the stick. The stick is free to swing back and forth in an Up-Down-East-West plane. Suddenly, the midpoint of the stick is ...
November 30, 2012 by HALP

physics
A worker applies a torque to a nut with a wrench 0.485 m long. Because of the cramped space, she must exert a force upward at an angle of 57.0° with respect to a line from the nut through the end of the wrench. If the force she exerts has magnitude 81.5 N, what magnitude ...
March 6, 2015 by alba

Conservation if Linear Momentum
A student (m = 66 kg) falls freely from rest and strikes the ground. During the collision with the ground, he comes to rest in a time of 0.04 s. The average force exerted on him by the ground is +18000 N, where the upward direction is taken to be the positive direction. From ...
February 26, 2012 by Angela

Physics
Question # 1 Marks = 12 A worker pushes 25Kg crate a distance of 5m along a level floor at constant velocity by pushing horizontally on it. The coefficient of kinetic frication between the crate and the floor is 0.23. (a) What magnitude of force must the worker apply? (b) How ...
November 1, 2011 by M. Yousaf Khan

sharma
If you watch little kids try to open doors, they will often just push anywhere on the door, rather than on the edge like adults do. This is because they don't understand that it's easier to open a door if you push on the edge. But how much easier? Consider the following ...
June 14, 2013 by shyam

physics
Suppose that three astronauts outside a spaceship decide to play catch. All the astronauts weigh the same on Earth and are equally strong. The first astronaut throws the second astronaut toward the third one and the game begins. Describe the motion of the astronauts as the ...
August 17, 2010 by Anonymous

Physics
Find the attracting force between 2 people sitting .08 meters apart. One person has a mass of 62kg and the other 80kg.
February 8, 2008 by Charles

Physics
A bridge is 200 m long. A car weighing 2.5 metric tons is 50 m from one end of the bridge and a trucj weighing 6 metric tons is 80 m from the other end. The bridge is uniformly paved and weighs 20 metric tons. How much force does the vertical support at each end exert?
July 19, 2015 by Julie

Physics
A worker applies a torque to a nut with a wrench 0.430 m long. Because of the cramped space, she must exert a force upward at an angle of 59.5° with respect to a line from the nut through the end of the wrench. If the force she exerts has magnitude 81.0 N, what magnitude ...
March 4, 2015 by Reina

Physics
Two electrostatic point charges of +60.0 uC and +50.c uC exert a repulsive force on each other of 175 N. What is the distance between the two charges? So let's say I use Coulomb's law would the repulsion of 175 N be considered the equivalent of the electric force? Can someone ...
January 17, 2011 by Pablo

physics
1. While strolling along on unknown planet, an astronaut decides to throw a hammer and a feather upwards at 5.0 m/s. They both return to the point of release in 3.0 s. What is the acceleration due to gravity on Planet X. 2. Marii jumps straight upward at 15.0 m/s. How high is ...
January 12, 2015 by chen

Physics
A girl having mass of 35 KG sits on a trolley of mass 5 KG. The trolley is given an initial velocity of 4 m/s by applying a force. The trolley comes to rest after travelling a distance of 16 m. (i) How much work is done on the trolley? (ii) How much work is done by the girl?
December 21, 2010 by Harshid

Math
Dina earned 1/4 for baby sitting and 1/2 for washing the dishes. How much money did she NOT earn from \$25.00?
December 9, 2010 by Hannah

Physics
. How much potential energy does the 2.5 kg rock sitting on an 18 –meter high cliff have?
December 7, 2014 by Anonymous

PHYSICS
a MAGNET CAN EXERT A FORCE ON A MOVING CHARGED PARTICLE, BUT IT CAN NOT CHANGE THE PARTICLE'S KINETIC ENERGY. WHY?
February 6, 2008 by tina

Physics
A magnet can exert a force on a moving charged particle, but it cannot change the particle's kinetic energy. Why not?
February 9, 2008 by Heather

physics
Assume the driver has a mass of 70.6 kg . What horizontal force does the seat exert on the driver? Answer in units of N
November 13, 2011 by Brooke

Physics
What force do the blades of a 4200 kg helicopter exert on the air when the helicopter is dropping at 23 m/s with speed decreasing at 3.7 m/s^2?
October 26, 2012 by George

Science
If you spin a water-filled cup horizontally on a flat table, did you exert force on the water?
April 29, 2014 by Kathleen

physics
A freight train has a mass of 3.2 × 107 kg. If the locomotive can exert a constant pull of 7.1 × 105 N, how long would it take to increase the speed of the train from rest to 74.6 km/h? (Disregard friction.)
January 9, 2011 by jena

physics
A freight train has a mass of 1.5 × 107 kg. If the locomotive can exert a constant pull of 4.9×105 N, how long does it take to increase the speed of the train from rest to 74 km/h? Answer in units of min.
March 30, 2011 by jenn

physics
A freight train has a mass of 3.1 × 107 kg. If the locomotive can exert a constant pull of 4.9 × 105 N, how long would it take to increase the speed of the train from rest to 71.9 km/h? Disregard friction.
November 3, 2012 by scott

Physics
A freight train has a mass of 1.7 × 10^7 kg. If the locomotive can exert a constant pull of 5.2 × 10^5 N, how long would it take to increase the speed of the train from rest to 74.6 km/h? Disregard friction. Answer in units of s
November 7, 2012 by John

Physics
A freight train has mass of 1.6 x 107 kg. If the locomotive can exert a constant pull of 760000 N, how long does it take to increase the speed of the train from rest to 79 km/h? Answer in units of min.
October 4, 2014 by Casey

Physics
1. A slingshot is used to launch a 5.00-gram rock. The effective spring constant of the slingshot is 200 N/m. By what distance must the slingshot be stretched in order to launch the rock at 20.0 m/s?
June 14, 2012 by James

physics
How much thrust is required to launch a 5 kg bottle rocket with an upward acceleration of 6.4 m/s2? I've gotten 32 because F=MA but I don't understand how to account for gravity. Please help!
December 30, 2014 by mack

An astronaut in his space suit and with a propulsion unit (empty of its gas propellant) strapped to his back has a mass of 134 kg. During a space-walk, the unit, which has been completely filled with propellant gas, ejects some gas with a velocity of +32 m/s. As a result, the ...
February 9, 2011 by maria

Science
what is the difference between mass and weight? The mass of an object is the amount of matter it contains, while its weight is a measurement of the force that gravity exerts on it. The mass of an object is always less than the weight of an object. The mass of an object is ...
August 15, 2016 by Nick J.

Physical Science
A strong magnet attracts a paper cup to itself with a certain force. Does the paper cup exert a force on the strong magnet?
October 9, 2012 by Anonymous

Aths
Suppose you are an astronaut spacewalking outside your spacecraft to repair a broken part. In fixing the part, you have drifted several meters from your spacecraft. You are now at rest and are still holding a bag filled with tools. How could you return to your ship?
May 11, 2014 by Ali

Physics
Junes Verne in 1865 suggested sending people to the Moon by firing a space capsule from a 195 m long cannon with a launch speed of 12.78 km/s. What would have been the unrealistically large acceleration experienced by the space travelers during launch? ____ m/s^2
September 1, 2010 by Z32

Physics (Normal Force)
When a book weighing 10 N is placed on a table, the table exerts a normal force of 10 N on the book. When a crate weighing 250 N is placed on the same table, the table exerts a normal force of 250 N on the crate. Explain the mechanism that allows the table to exert just the ...
October 1, 2009 by Ben

Physics
A steel ball of mass m1 = 1.1 kg and a cord of length of L = 2.3 m of negligible mass make up a simple pendulum that can pivot without friction about the point O, as in the figure below. This pendulum is released from rest in a horizontal position, and when the ball is at its ...
July 21, 2015 by Anonymous

physics
a physics book is on top of a drafting table at 35 degree angle. Find the net external force acting on the book and determing wether the book move or remain at rest on this position. they give you: force of friction 11N, force normal 18N,force of gravity on the book 22N.
January 16, 2011 by Grace

Physics
Two bowling balls each have a mass of 6.8kg. the speres are located nest to one another with their centers 21.8 cm apart. what gravitational force do they exert on each other?
May 3, 2010 by Lorena

physics
A mass pulled by a constant force accelerates from 10 cm/s to 40 cm/s in 5.5 s. A second force accelerates the same mass from rest to 105 cm/s in 15.0 s. If the first force is known to be 5.0 N, that what is the magnitude of the second force?
September 30, 2014 by sydney

statistics
Settlement of two species of mussel larvae was studied. In a wave exposed location, a collector pad yielded 108 larvae of Mytilus trossulus and 72 of M. californianus. In a wave sheltered location, a collector pad yielded 54 larvae of M. trossulus and 16 of M. californianus. ...
November 14, 2012 by erik

statistics
Settlement of two species of mussel larvae was studied. In a wave exposed location, a collector pad yielded 108 larvae of Mytilus trossulus and 72 of M. californianus. In a wave sheltered location, a collector pad yielded 54 larvae of M. trossulus and 16 of M. californianus. ...
November 14, 2012 by erik

math
One solar pad can raise water temp 1 degree in 30 min. a second solar pad takes 45 min to raise water temp 1 degree in 45 min. Both machines working together. How long will it take to raise the temp 1 degree
May 14, 2010 by kayla

PHYSICS
A hummingbird is able to hover because, as the wings move downwards, they exert a downward force on the air. Newton's third law tells us that the air exerts an equal and opposite force (upwards) on the wings. The average of this force must be equal to the weight of the bird ...
October 27, 2010 by Petrik

Physics
he weight of an astronaut on the moon is 127 N, where the value of 'g' is only 1.7 m/s2. What would the weight of this astronaut be on the Earth (in N)? I dont know if my attempt is rite? 127n/1.5ms^2 74.70N Divide 74.70N with earth value of G. What is the earths value of G?
October 8, 2009 by Jenny

Physics
Find the acceleration produced by a force of 1650N against a friction force of 500N while pushing on a mass of 6.50kg.
March 7, 2012 by Brent

physics
A particle moving in the xy plane under goes displacement s=(2i+3j)m while the constant force is given by F=(5i+2j)N.calculate the work done by the force F.
April 2, 2012 by minas

physics
The 20-g centrifuge at NASA's Ames Research Center in Mountain View, California, is a horizontal, cylindrical tube 58 ft long and is represented in the figure below. Assume an astronaut in training sits in a seat at one end, facing the axis of rotation 29.0 ft away. Determine ...
October 15, 2012 by Ania

physics
The 20-g centrifuge at NASA's Ames Research Center in Mountain View, California, is a horizontal, cylindrical tube 58.0 ft long and is represented in the figure below. Assume an astronaut in training sits in a seat at one end, facing the axis of rotation 29.0 ft away. ...
September 10, 2013 by ler

Physics
Use principles of force and kinematics to answer these: a. A 40 kg skater pushes on the 60 kg skater (initially at rest). As they collide, the 40 kg skater pushes on the 60 kg skater, applying a force 100 Newtons for 1.2 seconds. Find the velocity at which each of them ends up...
November 1, 2010 by jen

physics
Use principles of force and kinematics to answer these: a. A 40 kg skater pushes on the 60 kg skater (initially at rest). As they collide, the 40 kg skater pushes on the 60 kg skater, applying a force 100 Newtons for 1.2 seconds. Find the velocity at which each of them ends up...
November 1, 2010 by jen

physics
You exert a force of 325N on the ball and it compresses the spring 44.5cm. ... Charge B (-5.0*10^-6) is at the origin; charge c (+4.0*10^-6) has coordinates (5 ,0),
November 7, 2010 by Anonymous

physics
2 objects are .25m apart and exert a force of 2.5x10^-10 N on each other. Thier total mass is 4 kg. what is the mass of each?
February 20, 2011 by mark

earth
Determine the gravitational force that you exert on another person 1.90 m away. Assume that you and the other person are point masses of 75.0 kg each.
December 19, 2011 by Anonymous

physics
An astronaut is traveling in a space vehicle moving at 0.520c relative to the Earth. The astronaut measures her pulse rate at 74.0 beats per minute. Signals generated by the astronaut's pulse are radioed to the Earth when the vehicle is moving in a direction perpendicular to ...
October 10, 2014 by sara

Physics
A force platform is a tool used to analyze the performance of athletes measuring the vertical force that the athlete exerts on the ground as a function of time. Starting from rest, a 60.0 kg athlete jumps down onto the platform from a height of 0.600 m. While she is in contact...
April 8, 2014 by Jason

physics
The coefficient of static friction between a block and a horizontal floor is 0.37, while the coefficient of kinetic friction is 0.10. The mass of the block is 3.8 kg and it is initially at rest. Once the block is sliding, if you keep pushing on it with the same minimum ...
November 21, 2010 by anonymous

physics
A 58-kg astronaut inside a 9-m-long space capsule of mass 550 kg is floating weightlessly on one end of the capsule. He kicks off the wall at a velocity of 3.6 m/s toward the other end of the capsule. How long does it take the astronaut to reach the far wall?
June 12, 2012 by lanre

science
an astronaut on a space walk bumps the shuttle and starts moving away at a velocity of 0.02m/s. The astronauts mass is 100kg. He has takesa 1kr "safety week" and shoves it away in exactly the direction of his motion at a speed of 6m/s. what speed does the astronaut move back ...
September 25, 2013 by trisha

science
An astronaut on a space walk bumps the shuttle and starts moving away at a velocity of 0.02m/s. The astronauts mass is 100kg. He has takes a 1kg "safety week" and shoves it away in exactly the direction of his motion at a speed of 6m/s. What speed does the astronaut move back ...
September 26, 2013 by Trisha

Science
An astronaut on a space walk bumps the shuttle and starts moving away at a velocity of 0.02m/s. The astronauts mass is 100kg. He has takes a 1kg "safety week" and shoves it away in exactly the direction of his motion at a speed of 6m/s. What speed does the astronaut move back ...

physics
A 10 kg mass is sitting on a 25 degree incline. A constant force of 49N is applied up the plane. The coefficient of static friction is .25. Does it go up or down or does it stay put?
February 19, 2013 by Aaron

physical science
A 0.5 kg block initially at rest on a frictionless, horizontal surface is acted upon by a force of 5.0 N for a distance of 4.0 m. How much kinetic energy does the block gain? What is its final velocity?
February 18, 2015 by Bia

Physics
A 2.9 kg body is at rest on a frictionless horizontal air track when a horizontal force F acting in the positive direction of an x axis along the track is applied to the body. A stroboscopic graph of the position of the body as it slides to the right is shown in the figure. ...
July 22, 2010 by Dave

Pre-Calculus
Two barges are pulling a ship into the harbor. Barge A is pulling with a force of 2700N at N43 deg E, and barge B is pulling at S 50 deg E. What force must barge B exert so that the ship is pulled directly East?
May 2, 2011 by Joe

Physics
A 250kg anvil is sitting on a table. What is the normal force on the anvil ?
January 6, 2011 by Nateisha

physics
A 4.55 kg object is released from rest while fully submerged in a liquid. The liquid displaced by the submerged object has a mass of 3.20 kg. How far and in what direction does the object move in 0.200 s, assuming that it moves freely and that the drag force on it from the ...
December 1, 2012 by kev

Physics
Assuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the 12.0-V batteries of a 845-kg electric car be able to supply to do the following? (a) accelerate from rest to 25.0 m/s in 1.00 min (b) climb a 200-m high hill in 2.00 min at a ...
February 14, 2016 by Laura

physics
find the force of gravity between 74.0kg physics students that are sitting 85.0 cm apart
November 3, 2011 by Anonymous

calculus
Could someone help me draw these vectors? These things confuse me. A force of 42 newtons acting on an object at an angle of 53 degrees with the ground A force of 342 lbs. acting on an object while a force of 454 pounds acts on the same object an angle of 94 degrees with the ...
February 21, 2010 by Jim

Physics
A bolt is to be tightened with a torque of 8.0 N*m. If you have a wrench that is 0.35 m long, what is the least amount of force you must exert? the equation for this problem is t=Fr sinbeta, but the sin is not given What am I suppose to do?
December 6, 2009 by Shawn

Physical Science
A dentist’s chair with a patient in it weight 2100N. The output plunger of a hydraulic system begins to lift the chair, when the dentist’s foot applies of 55N to the input piston. Neglect any height difference between the plunder and the piston. What is the ratio of the radius...
May 13, 2013 by Janaiby

Grammar (Ms. Sue)
Rewrite the sentences below that contain errors in pronoun-antecedent agreement. If a sentence is correct, write "correct." 1. Some of my friends wrote to NASA in their spare time to find out how to become an astronaut. 2. Either civilians or military personnel many begin ...
May 20, 2013 by Anonymous

physics
A body pulled by a constant force accelerates from 10 cm/s to 35 cm/s in 3.5 s. A second force accelerates the same body from rest to 110 cm/s in 10.5 s. If the first force is known to be 5.0 N, that what is the second force?
February 5, 2011 by seB

science
What is the net force on a box that is being pushed to the left with a force of 50 N while it is also being pushed to the right with a force of 60 N
December 9, 2011 by Tonya

physics
A cart being pulled by a 10 year old Boy with a force that is parallel to the surface. if the surface is inclined at 50° and the cart is 250kg while the surface has a coefficient of friction of 0.22 find the Normal force, Force of Friction and Force exerted by the boy
July 27, 2014 by Lu

help me physics
suppose the cart has mass m = 203 g, and it strikes the clay at speed vo = 5.24 m/s and comes to a dead stop. Assume the track is frictionless, and the clay is crushed inward by 1.83 cm. a)Find the magnitude of the impulse exerted by the clay on the cart. 1 N-m i got this ...
November 1, 2010 by jason

Physics
What is the force of attraction between an 8 kg bowling ball and a 13 kg cannon ball that are sitting 2 meters apart?
December 5, 2014 by Anonymous

Physics
What is the force of attraction between you and your friend steve if you are 55 kg,the mass of steve is 60 kg, and you are sitting 2.4 meters apart?
February 4, 2016 by Alexandre

physics
1. how much work do you do on a 25-kg backpack when you walk a horizontal distance of 100 m? -I got 2,500 J 4. if you friend pushes a lawnmower four times as far as you do while exerting only half the force, which one of you does more work? how much more? ( I dont understand ...
October 17, 2007 by Donna

Physics
What force would you have to exert on a 326-N trunk up a 19.0° inclined plane so that it would slide down the plane with a constant velocity? What would be the direction of the force? (The coefficient of friction between the plane and the trunk is 0.328.) The force of friction...
December 16, 2007 by Jane

Physics
Consider the 50.0-kg mountain climber in the figure to the right. Find (a) the tension in the rope and (b) the force that the mountain climber must exert with her feet on the vertical rock face to remain stationary. Assume that the force is exerted parallel to her legs. Also, ...
June 1, 2016 by Anonymous

physics
An astronaut on a distant planet wants to determine its acceleration due to gravity. The astronaut throws a rock straight up with a velocity of + 15.5 m/s and measures a time of 13.9 s before the rock returns to his hand. What is the acceleration (magnitude and direction) due...
June 17, 2013 by louis aaaa

physics
Two identical positive charges exert a repulsive force of 6.6 multiplied by 10^-9 N when separated by a distance of 5.8 multiplied by 10^-10 m. Calculate the charge of each.
January 13, 2009 by Mara

physics
I want to confirm if its true if one object is to exert a force on another, then the two objects must be touching or connected by a third object.
April 6, 2010 by Anonymous

physics
If a person who weighs 125lb, rides a roller coaster with a 100m diameter loop at 30m/s. What force did the person exert?
September 27, 2012 by maria

Physics
A freight train has a mass of 1.2 × 107 kg. If the locomotive can exert a constant pull of 5.0 × 105 N, how long would it take to increase the speed of the train from rest to 89.2 km/h? (Disregard friction.) Answer in units of s.
January 10, 2011 by Michael

Physics
A freight train has a mass of 1.3 x10^7 kg. if the locomotive can exert a constant pull of 5.4x10^5 N, how long would it take to increase the speed of the train from rest to 71 km/h? Disregard friction. Answer in units of s.
September 28, 2014 by Karlee

physics
An astronaut on a distant planet wants to determine its acceleration due to gravity. The astronaut throws a rock straight up with a velocity of 13.5 m/s and measures a time of 21.8 s before the rock returns to his hand. What is the acceleration due to gravity on this planet? (...
January 15, 2012 by Jen

Physics
A 5.00 m long rigid beam with a mass of 200.0 kg is supported at each end. A 55.0 kg student stands on the beam, 1.40 m from the left support and a 70 kg student stands 1.2 m from the right support. How much upward force does each support exert on the beam? Be specific by left...
November 17, 2011 by Anonymous

Physics
A 20.0 kg cart is moving with a velocity of 7.30 m/s down a level hallway. A constant force of -11.0 N acts on the cart and its velocity becomes 3.50 m/s. a) What is the change in kinetic energy of the cart? b) How much work was done on the cart? c) How far did the cart move ...
November 16, 2007 by Einstein

Physics
A construction crew pulls up an 87.5-kg load using a rope thrown over a pulley and pulled by an electric motor. They lift the load 15.1 m and it arrives with a speed of 15.6 m/s having started from rest. Assume that acceleration was not constant. a. How much work (J) was done ...
July 31, 2012 by Anonymous

Physics
A construction crew pulls up an 87.5-kg load using a rope thrown over a pulley and pulled by an electric motor. They lift the load 15.1 m and it arrives with a speed of 15.6 m/s having started from rest. Assume that acceleration was not constant. a. How much work (J) was done ...
July 31, 2012 by Anonymous

Physics
A meteor has a speed of 90.0 m/s when 900 km above the Earth. It is falling vertically (ignore air resistance) and strikes a bed of sand in which it is brought to rest in 3.19 m. (a) What is its speed before striking the sand? (b) How much work does the sand do to stop the ...
February 26, 2014 by Anonymous

Physics
1) An 8.5kg bowling ball dropped 11m hits the ground 1.5 seconds later. What is the magnitude of the force acting on the ball during the fall? 2) Shuttle astronauts climb at a rate of 24.5m/s^2 shortly after takeoff. What apparent weight would a 95kg astronaut have during this...
December 22, 2011 by Jorge

Calculus
A wealthy patron of a small private college wishes to endow a chair in mathematics with a gift of G thousand dollars. Suppose the mathematician who occupies the chair is to receive \$110 thousand dollars per year in salary and benefits. If money costs 8% per year compounded ...
February 13, 2015 by C

A 4.65 kg object is released from rest while fully submerged in a liquid. The liquid displaced by the submerged object has a mass of 2.60 kg. How far and in what direction does the object move in 0.300 s, assuming that it moves freely and that the drag force on it from the ...
April 18, 2012 by Kristen

physics
A 10-kg duffle bag is undergoing a vertical acceleration of 0.65 m/s2 (positive for up, negative for down), while its owner is holding it with an upward force. What is the magnitude of this force?
February 21, 2011 by sabeen

Physics
The force shown in Figure 7-17 moves an object from x = 0 to x = 75 m, where the interval between vertical dashed lines is 25 m. (a) How much work is done by the force? (b) How much work is done by the force if the object moves from x = 25 to x = 75 m?
February 19, 2008 by Teya

Physics
The force shown in the figure moves an object from x = 0 to x = 60 m, where the interval between vertical dashed lines is 20 m. (a) How much work is done by the force? (b) How much work is done by the force if the object moves from x = 20 to x = 60 m? (IN J)
July 14, 2010 by Elaine