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You do 200 J of work to lift a certain rock by 3.0m at a constant...
A 4 kg block is compressing a spring (k=555N/m) by 0.2m. The block stays in place...
A 4 kg block is compressing a spring (k=555N/m) by 0.2m. The block stays in place until someone takes their hand away from the block. The block then slides on the frictionless ground for 2m and then slides up a 30degree ramp and hits another block (2kg) that is 0.5m up the ramp (diagonally). The 2kg block gains a speed of 0.6m/s up the incline right after the collision. Determine the velocity of the 2kg before the collision.
A 124-kg balloon carrying a 22-kg basket is descending with a constant downward velocity of 16.4...
A 124-kg balloon carrying a 22-kg basket is descending with a constant downward velocity of 16.4 m/s . A 1.0-kg stone is thrown from the basket with an initial velocity of 19.0 m/sperpendicular to the path of the descending balloon, as measured relative to a person at rest in the basket. That person sees the stone hit the ground 17.3 s after it was thrown. Assume that the balloon continues its downward descent with the same constant speed of 16.4...
A 124-kg balloon carrying a 22-kg basket is descending with a constant downward velocity of 19.8...
A 124-kg balloon carrying a 22-kg basket is descending with a constant downward velocity of 19.8 m/s . A 1.0-kg stone is thrown from the basket with an initial velocity of 12.3 m/s perpendicular to the path of the descending balloon, as measured relative to a person at rest in the basket. That person sees the stone hit the ground 14.2 s after it was thrown. Assume that the balloon continues its downward descent with the same constant speed of...
A physics student pulls a block of mass m = 22 kg up an incline at...
A physics student pulls a block of mass m = 22 kg up an incline
at a slow constant velocity for a distance of d = 4.5 m. The
incline makes an angle ? = 32° with the horizontal. The coefficient
of kinetic friction between the block and the inclined plane is µk
= 0.3.
1) What is the work Wm done by the student?
2) At the top of the incline, the string by which she was pulling
the...
Constants Part A A 124-kg balloon carrying a 22-kg basket is descending with a constant downward...
Constants Part A A 124-kg balloon carrying a 22-kg basket is descending with a constant downward velocity of 16.4 m/s. A 1.0-kg stone is thrown from the basket with an initial velocity of 19.0 m/s perpendicular to the path of the descending balloon, as measured relative to a person at rest in the basket. That person sees the stone hit the ground 17.3 s after it was thrown. Assume that the balloon continues its downward descent with the same constant...
c) 353 J 13. A 200 kg roller coaster starts from 50 m above the ground....
c) 353 J 13. A 200 kg roller coaster starts from 50 m above the ground. (a) 5 It falls toward the ground with out any friction then once it ((c) reaches the ground level, the brakes are applied over 30 m 19. A in order to bring the coaster to a complete stop. How much ms-1 work is done by the brakes? 20 N (a) 10 x10 J (c)-10 x10 J 14. A 7 kg ball is dropped from...
Please show all work 1. A 30 cm spring is compressed to 2 cm. a force...
Please show all work 1. A 30 cm spring is compressed to 2 cm. a force of 200 N was used to do this. How much potential energy is stored in the spring? 2. A 5 kg mass is suspended from a spring. The spring develops 100 J of potential energy. What is the spring constant of the spring? 3. A ball is at rest on top of a 15 meter high hill. It rolls down the hill and is...
2. | 10 The block B of mass m3 = 2.5 kg is attached to a...
2. | 10 The block B of mass m3 = 2.5 kg is attached to a spring with spring constant k, and is initially at rest at point A as shown in the diagram. The block is then released and slides inside the curved slot until it collides at location C with a ball S that is hanging by a rope from a fixed location D. After the collision, block B is at rest at location C, and the ball...
1) A block of mass m = 0.52 kg is attached to a spring with force...
1) A block of mass m = 0.52 kg is attached to a spring with
force constant 119 N/m is free to move on a frictionless,
horizontal surface as in the figure below. The block is released
from rest after the spring is stretched a distance A = 0.13 m.
(Indicate the direction with the sign of your answer. Assume that
the positive direction is to the right.)
(a) At that instant, find the force on the block. N
(b)...
DQuestion 34 1 pts A5 kg projectile is fired at an angle of 25° above the horizontal. Its initial velocity is 200 m/s a...
DQuestion 34 1 pts A5 kg projectile is fired at an angle of 25° above the horizontal. Its initial velocity is 200 m/s and just before it hits the ground its velocity is 150 m/s. What is the change in the mechanical energy of the projectile? O +19,000J O-19,000 J +44,000J O -44,000J 0 Question 35 1 pts Two blocks are released from the toop of a tower One falls straight down while the other slides down a frictionless ramp....
A physics student pulls a block of mass m = 22 kg up an incline
at a slow constant velocity for a distance of d = 4.5 m. The
incline makes an angle ? = 32° with the horizontal. The coefficient
of kinetic friction between the block and the inclined plane is µk
= 0.3.
1) What is the work Wm done by the student?
2) At the top of the incline, the string by which she was pulling
the...
c) 353 J 13. A 200 kg roller coaster starts from 50 m above the ground. (a) 5 It falls toward the ground with out any friction then once it ((c) reaches the ground level, the brakes are applied over 30 m 19. A in order to bring the coaster to a complete stop. How much ms-1 work is done by the brakes? 20 N (a) 10 x10 J (c)-10 x10 J 14. A 7 kg ball is dropped from...
2. | 10 The block B of mass m3 = 2.5 kg is attached to a spring with spring constant k, and is initially at rest at point A as shown in the diagram. The block is then released and slides inside the curved slot until it collides at location C with a ball S that is hanging by a rope from a fixed location D. After the collision, block B is at rest at location C, and the ball...
1) A block of mass m = 0.52 kg is attached to a spring with
force constant 119 N/m is free to move on a frictionless,
horizontal surface as in the figure below. The block is released
from rest after the spring is stretched a distance A = 0.13 m.
(Indicate the direction with the sign of your answer. Assume that
the positive direction is to the right.)
(a) At that instant, find the force on the block. N
(b)...
DQuestion 34 1 pts A5 kg projectile is fired at an angle of 25° above the horizontal. Its initial velocity is 200 m/s and just before it hits the ground its velocity is 150 m/s. What is the change in the mechanical energy of the projectile? O +19,000J O-19,000 J +44,000J O -44,000J 0 Question 35 1 pts Two blocks are released from the toop of a tower One falls straight down while the other slides down a frictionless ramp....
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