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?
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A 5 kg block slides across a horizontal surface with an initial
speed of 8.5 m/s....
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...
A mass of 1 kg and initial speed 10 m/s slides across a horizontal frictionless surface...
A mass of 1 kg and initial speed 10 m/s slides across a horizontal frictionless surface and hits a spring of force constant 200 N/m. How much will the spring be compressed from its relaxed length when the block will be at rest momentarily?
A(n) 3.6-kg copper block is given an initial speed of 5.6 m/s on a rough horizontal...
A(n) 3.6-kg copper block is given an initial speed of 5.6 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.
A 1.05 kg block slides on a frictionless, horizontal surface with an speed of 1.45 m/sec....
A 1.05 kg block slides on a frictionless, horizontal surface with an speed of 1.45 m/sec. The block encounters an unstretched spring with a spring constant of 285 N/m. 1)What is the initial kinetic energy of the block before it hits the spring? KE0 = 2)What is the potential energy of the mass and spring system when the spring is at its point of maximum compression? Umax = 3)How far is the spring compress before the block comes to rest?...
A block of mass m = 78 kg slides along a horizontal surface
A block of mass m = 78 kg slides along a horizontal surface. The coefficient of friction between the block and the surface is μk = 0.29. The block has an initial speed of v0 = 29 m/s in the positive x-direction as shown. a. Write an expression for the x-component of the frictional force the block experiences, Ff, in terms of the given variables and variables available in the palette. b. What is the magnitude of the frictional force in N? c....
A 0.505-kg block slides on a frictionless horizontal surface with a speed of 1.18 m>s. The...
A 0.505-kg block slides on a frictionless horizontal surface with a speed of 1.18 m>s. The block encounters an unstretched spring and compresses it 23.2 cm before coming to rest. (b) For what length of time is the block in contact with the spring before it comes to rest? (c) If the force constant of the spring is increased, does the time required to stop the block increase, decrease, or stay the same? Explain.
6. A 2.0 kg block slides to the right across a horizontal surface.
6. A 2.0 kg block slides to the right across a horizontal surface. Let's define a coordinate system where the +x-direction is to the right. At x=0, the block's velocity is +5.0 m / s (to the right). The magnitude of the kinetic friction force between the block and surface is 10N.a. Draw a force diagram of the block. Which forces expert zero work on the block? Explain why.c. What is the work that the kinetic friction force exerts on...
A block of mass m = 63 kg slides along a horizontal surface.
A block of mass m = 63 kg slides along a horizontal surface. The coefficient of friction between the block and the surface is μk= 0.41. The block has an initial speed of v0 = 16 m/s in the positive x-direction as shown. Part (a) Write an expression for the x-component of the frictional force the block experiences, Ff in terms of the given variables and variables available in the palette.Part (b) What is the magnitude of the frictional force in...
A block of mass m = 67 kg slides along a horizontal surface
A block of mass m = 67 kg slides along a horizontal surface. The coefficient of friction between the block and the surface is μk = 0.22. The block has an initial speed of v0= 16 m/s in the positive x-direction as shown.Part (a) Write an expression for the x-component of the frictional force the block experiences, Ff, in terms of the given variables and variables available in the palette. Part (b) What is the magnitude of the frictional force in...
A book slides across a level, carpeted floor with an initial speed of 4.05 m/s and...
A book slides across a level, carpeted floor with an initial speed of 4.05 m/s and comes to rest after 3.25 m. Calculate the coefficient of kinetic friction ?k between the book and the carpet. Assume the only forces acting on the book are friction, weight, and the normal force. ?=
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