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the kinetic energy of the (a) A lead block with a mass of 8.5 kg initially...
A(n) 1.9-kg copper block is given an initial speed of 2.9 m/s on a rough horizontal...
A(n) 1.9-kg copper block is given an initial speed of 2.9 m/s on a rough horizontal surface. Because of friction, the block finally comes to rest. (a) If the block absorbs 85% of its initial kinetic energy as internal energy, calculate its increase in temperature. °C (b) What happens to the remaining energy? - a. It becomes chemical energy. - b. It is so minute that it doesn't factor into the equation. - c. It is absorbed by the horizontal...
Question Part Points Submissions Used A(n) 1.2-kg copper block is given an initial speed of 4.5...
Question Part Points Submissions Used A(n) 1.2-kg copper block is given an initial speed of 4.5 m/s on a rough horizontal surface. Because of friction, the block finally comes to rest. (a) If the block absorbs 85% of its initial kinetic energy as internal energy, calculate its increase in temperature. °C (b) What happens to the remaining energy? It vanishes from the universe.It is so minute that it doesn't factor into the equation. It becomes chemical energy.It is absorbed by the...
A block has an initial kinetic energy K. If the block moves in the opposite direction...
A block has an initial kinetic energy K. If the block moves in the opposite direction with one fifth its initial speed, then what is its new kinetic energy? 4/5 K K/25 -K/5 -K/25 None of the above. A block (6 kg) starts from rest and slides down a frictionless ramp #1 of height 9 m. The block then slides a horizontal distance of 1 m on a rough surface with kinetic coefficient of friction u 0,5. Next. it slides...
A 5 kg block slides across a horizontal surface with an initial speed of 8.5 m/s....
A 5 kg block slides across a horizontal surface with an initial speed of 8.5 m/s. The coefficient of static friction between the block and the surface is 0.78. What is the increase in thermal energy of the block and its surroundings after it comes to rest?
A block (6 kg) starts from rest and slides down a frictionless ramp #1 of height...
A block (6 kg) starts from rest and slides down a frictionless ramp #1 of height 6 m. The block then slides a horizontal distance of 1 m on a rough surface with kinetic coefficient of friction μk = 0.5. Next, it slides back up another frictionless ramp #2. Find the following numerical energy values: 1.Initial gravitational potential energy on Ramp #1: U1G = J 2.Kinetic energy at bottom of Ramp #1 before traveling across the rough surface: K =...
Use work and energy to find an expression for the speed of the block just before...
Use work and energy to find an expression for the speed of the block just before it hits the floor if: the coefficient of kinetic friction for the block on the table is mu_k. the table is frictionless. A 5.0 kg box slides down a 5.0-m-high frictionless hill, starting from rest, across a 2.0-m-wide horizontal stir face, then hits a horizontal spring with spring constant 500 N/m. The other end of the spring is anchored against a wall. The ground...
A bullet of mass 4.3 g is fired horizontally into a 7.4 kg wooden block at...
A bullet of mass 4.3 g is fired horizontally into a 7.4 kg wooden block at rest on a horizontal surface. The coefficient of kinetic friction between block and surface is 0.53. The bullet stops in the block, which slides straight ahead for 1.7 m (without rotation). (a) What is the speed of the block immediately after the bullet stops relative to it? (b) At what speed is the bullet fired?
1. Determine the kinetic energy of the block at point C, at the top of the...
1. Determine the kinetic energy of the block at point C, at the
top of the loop.
After the block slides down the loop from point C to D, it
enters the rough portion of the track. The speed of the block at
point D is the same as point B, and the speed of the block at point
E is half the speed of the block at point D.
2. Determine the amount of work done by friction between...
A block of mass 0.528 kg slides with uniform velocity of 3.60 m/s on a horizontal...
A block of mass 0.528 kg slides with uniform velocity of 3.60 m/s on a horizontal frictionless surface. At some point, it strikes a horizontal spring in equilibrium. If the spring constant is k = 26.1 N/m, by how much will the spring be compressed by the time the block comes to rest? b. What is the amount of compression if the surface is rough under the spring, with coefficient of kinetic friction µk = 0.411?
A 2-kg block slides along a rough horizontal surface and slows to 10 m/s after traveling...
A 2-kg block slides along a rough horizontal surface and slows to 10 m/s after traveling 20 m. it the kinetic coeficient of friction between the Book SA ace is 0.2, the initial speed (m/s) of the block was most nearly 13.4 20.0 10.0 10.4
A block has an initial kinetic energy K. If the block moves in the opposite direction with one fifth its initial speed, then what is its new kinetic energy? 4/5 K K/25 -K/5 -K/25 None of the above. A block (6 kg) starts from rest and slides down a frictionless ramp #1 of height 9 m. The block then slides a horizontal distance of 1 m on a rough surface with kinetic coefficient of friction u 0,5. Next. it slides...
Use work and energy to find an expression for the speed of the block just before it hits the floor if: the coefficient of kinetic friction for the block on the table is mu_k. the table is frictionless. A 5.0 kg box slides down a 5.0-m-high frictionless hill, starting from rest, across a 2.0-m-wide horizontal stir face, then hits a horizontal spring with spring constant 500 N/m. The other end of the spring is anchored against a wall. The ground...
1. Determine the kinetic energy of the block at point C, at the
top of the loop.
After the block slides down the loop from point C to D, it
enters the rough portion of the track. The speed of the block at
point D is the same as point B, and the speed of the block at point
E is half the speed of the block at point D.
2. Determine the amount of work done by friction between...
A 2-kg block slides along a rough horizontal surface and slows to 10 m/s after traveling 20 m. it the kinetic coeficient of friction between the Book SA ace is 0.2, the initial speed (m/s) of the block was most nearly 13.4 20.0 10.0 10.4
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