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In this condition only the gravitational force between moon and rock acts which is in downward direction.
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33. A playful astronaut decides to throw rocks on the Moon. What forces act on the...
Part A.) An astronaut needs to measure the local gravity on a planet's moon. She decides...
Part A.) An astronaut needs to measure the local gravity on a planet's moon. She decides to use a 1.5 m long pendulum. She finds it takes her pendulum 6.09 seconds to complete one full oscillation. What is the acceleration due to gravity on this moon? -answer choices a.) 2.1 m/s2 b.) 1.6 m/s2 c.) 1.9 m/s2 d.) 2.3 m/s2 Part B.) What is the frequency of this pendulum? -answer choices a.) 1.2 Hz b.) 0.16 Hz c.) .28 Hz...
A) For the next scene, an astronaut travels to a moon of Planet W. She needs...
A) For the next scene, an astronaut travels to a moon of Planet W. She needs to measure the local gravity on the planet. She decides to use a 1.5 m long pendulum. She finds it takes her pendulum 6.09 seconds to complete one full oscillation. What is the acceleration due to gravity on this moon? a. 1.6 m/s2 b.2.1 m/s2 c. 2.3 m/s2 d.1.9 m/s2 B) For the next scene, an astronaut travels to a moon of Planet W....
In 1971 Alan Shepard and Ed Mitchell spent 33 hours on the Moon as crew members...
In 1971 Alan Shepard and Ed Mitchell spent 33 hours on the Moon as crew members of Apollo 14. Shepard, one of the original Mercury astronauts, was 47 years old and is the oldest man to walk on the lunar surface. While on the Moon, Shepard hit two golf balls using an improvised golf club. After striking the second ball, Shepard said “miles and miles and miles”, a reference to the distance the ball travelled. Owing to the lack of...
39. What happens to a spaceship flying through space with no engines and no external forces...
39. What happens to a spaceship flying through space with no engines and no external forces acting on the spaceship? A. It gradually slows down. B. It gradually speeds up. C. Its speed doesn't change. D. We have no idea what happens to the spaceship. 40. A 10-N horizontal force is applied to a box that weighs 24 N. If the box does not move on the horizontal surface (m.- 0.5), what is the force of friction? A. 5 N...
ils (1) A student is sitting motionless in physics class. What forces act on the student?...
ils (1) A student is sitting motionless in physics class. What forces act on the student? Check all the correct answers. A) Gravity B) Normal Force C) Spring Force D) Air resistance E) The force of the student pushing on the chair (2) A block with a mass of 4 kg is sliding speed of 5 m/s. The presence of kinetic friction between the block and the surface results in a constant 4 N force acting on the block. How...
Part 1 Your answer is correct. 1) Two external forces act on a system, <14, -17,...
Part 1 Your answer is correct. 1) Two external forces act on a system, <14, -17, 38> N and <20, -11, -28> N. What is the net force acting on the system? 28 tlel By accessing this Question Assistance, you will learn while you earn points based on the Point Potential Policy set by your instructor. Part 2 Your answer is partially correct. Try again 2) A hockey puck initially has momentum <0, 0, 13> kg-m/s. It slides along the...
1. If a sky-diver jumps out of a plane, two forces will act on him, gravity...
1. If a sky-diver jumps out of a plane, two forces will act on him, gravity and air resistance. If we assume air resistance is proportional to the velocity, we get the total force on the sky diver will be F = −gm − kv, where g is a acceleration due to gravity on the surface of the earth, m is the mass of the sky-diver, v is the velocity of the sky-diver, and k is constant of proportionality for...
A toy elevator is raised from the ground floor to the second floor in 20 seconds....
A toy elevator is raised from the ground floor to the second floor in 20 seconds. The power need using 1000 J of work, is 20,000 W. 100 W. 50 W. 1000 W. 20 W. It is correct to say that impulse is equal to a corresponding change In momentum. force multiplied by the distance it act velocity multiplied by time. momentum. A skydiver steps from a helicopter and falls for a few seconds until terminal velocity is reach Thereafter,...
At the top of the highest peak. Question 11 A ballistic missile that has a mass...
At the top of the highest peak. Question 11 A ballistic missile that has a mass of 12000 kg travels at a speed of 5.6 m/s through the air. What is the time required for an air frictional force of F= 2000N to bring the missile to rest? 33.65 36.3s 30.05 15.2 s 28.4s Question 12 1 pts A child is pulling a tory truck on a level track and running. What can be said about the kinetic energy of...
Question Translation: On a car of mass M, two forces act as shown in the figure above. Find an expression for the acceleration of the car in terms of T, F, and M. What happens to the acceleration if...
Question Translation:
On a car of mass M, two forces act as shown in the figure
above. Find an expression for the acceleration of the car in terms
of T, F, and M. What happens to the acceleration if we double the
mass of the car?
An object of mass M is in free fall (the only force on the
object is its weight). Make a force diagram for this case. Use
Newton's second law to calculate the acceleration of...
39. What happens to a spaceship flying through space with no engines and no external forces acting on the spaceship? A. It gradually slows down. B. It gradually speeds up. C. Its speed doesn't change. D. We have no idea what happens to the spaceship. 40. A 10-N horizontal force is applied to a box that weighs 24 N. If the box does not move on the horizontal surface (m.- 0.5), what is the force of friction? A. 5 N...
ils (1) A student is sitting motionless in physics class. What forces act on the student? Check all the correct answers. A) Gravity B) Normal Force C) Spring Force D) Air resistance E) The force of the student pushing on the chair (2) A block with a mass of 4 kg is sliding speed of 5 m/s. The presence of kinetic friction between the block and the surface results in a constant 4 N force acting on the block. How...
Part 1 Your answer is correct. 1) Two external forces act on a system, <14, -17, 38> N and <20, -11, -28> N. What is the net force acting on the system? 28 tlel By accessing this Question Assistance, you will learn while you earn points based on the Point Potential Policy set by your instructor. Part 2 Your answer is partially correct. Try again 2) A hockey puck initially has momentum <0, 0, 13> kg-m/s. It slides along the...
A toy elevator is raised from the ground floor to the second floor in 20 seconds. The power need using 1000 J of work, is 20,000 W. 100 W. 50 W. 1000 W. 20 W. It is correct to say that impulse is equal to a corresponding change In momentum. force multiplied by the distance it act velocity multiplied by time. momentum. A skydiver steps from a helicopter and falls for a few seconds until terminal velocity is reach Thereafter,...
At the top of the highest peak. Question 11 A ballistic missile that has a mass of 12000 kg travels at a speed of 5.6 m/s through the air. What is the time required for an air frictional force of F= 2000N to bring the missile to rest? 33.65 36.3s 30.05 15.2 s 28.4s Question 12 1 pts A child is pulling a tory truck on a level track and running. What can be said about the kinetic energy of...
Question Translation:
On a car of mass M, two forces act as shown in the figure
above. Find an expression for the acceleration of the car in terms
of T, F, and M. What happens to the acceleration if we double the
mass of the car?
An object of mass M is in free fall (the only force on the
object is its weight). Make a force diagram for this case. Use
Newton's second law to calculate the acceleration of...
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