When you lift a box from the floor to a shelf, the potential energy of the box on the shelf
Question 23 options:
|
|||
|
|||
|
|||
|
If we lift a box from the floor to a shelf the potential energy of the box on the shelf is
d). Equals the work done against gravity that you did on the box.
When you lift a box from the floor to a shelf, the potential energy of the...
You lower a 3.10-kg box to the floor from a shelf 1.12m above the floor. What is the magnitude of the change in potential energy of the box? Does it increase or decrease?
QUESTION 6 1. Juan lifts a box on the floor. If you lift the same box twice the previous height, it has a.. four times the potential energy b. double the potential energy c. no change in potential energy d. maximum kinetic energy KE QUESTION 7 1. When a particle moves in a circle with constant speed, its acceleration always occurs a. Perpendicular to instantaneous speed b. Opposed to instantaneous speed c. Tangent to the circular path d. There...
Suppose you slowly and at constant speed lift a 4 N book from the floor to a shelf 2 m above the floor. (a) While your lifting it the net force on the book is zero(True,False) (b) While your lifting it the force by your hand against the book is 4 N(True,False) (c) The net work done on the book is zero(True,False) (d) The work done by your hand on the book is 8 Joules(True,False) (e) The net work done...
you lift a 2 kg box from the first to the second floor of a building by climbing the stairs and perform 300j of work. how much work is needed to lift the box, straight up vertically, from the first to the second floor of the same building
5.11 When a spring is stretched from xi -0 cm to x 35 cm, the potential energy of the spring is 14.6 J. What is the spring constant of the spring? 5.12 A 7 kg block is moved from a lower shelf 0.2 m above the floor to a higher shelf 1.85 m above the floor. What is the change in the potential energy of the block?
Question 31 1 pts A 1.0-kg ball falls to the floor. When it is 0.70m above the floor, its potential energy exactly equals its kinetic energy. How fast is it moving at this moment? 0 3.7 m/s 6.9 m/s 14m's 45m's Question 32 1 pts The more powerful the motor is, the: O longer the time interval for doing the work is shorter the time interval for doing the work is O greater the ability to do the work is...
You do 1000 J of work lifting a 25 kg box from the floor to a shelf, only to have it accidentally fall off. About how high is the shelf?
Question 28 1 pts What is the gravitational potential energy of a 1- kg block at rest on a table 1 m above the floor? 01 9.8 O 32 O 11.8) 00 Question 29 1 pts A particle is moved from point A to point B against a conservative force. Which statement is true about the work done? O cannot be recovered by moving it from B to A O does not depend on the path taken between A and...
if you lift a 50 lb barbell 6 foot off the floor, how much work do you do? by how much do you charge change the barbells potential energy? if you drop the barbell from 6-foot what is its kinetic energy just before it hits the floor?
The energy of motion is called: Kinetic energy. potential energy, inertial energy. Power. In an inelastic collision: momentum is conserved. kinetic energy is conserved, both (a) and (b). If the velocity of a moving object is doubled and its mass is cut in half, the kinetic energy of the object is; remains the same, doubled quadrupled, cut in half. When the net work done on an object is speed of the object is me on an object is zero; the...