A 0.66 kg spike is hammered into a railroad tie. The initial
speed of the spike is equal to 2.3 m/s.
If the tie and spike together absorb 69.5 percent of the spike’s
initial kinetic energy as internal energy, calculate the increase
in internal energy of the tie and spike.
Answer in units of J.
A 0.66 kg spike is hammered into a railroad tie. The initial speed of the spike...
A worker drives a 0.560 kg spike into a rail tie with a 2.76 kg sledgehammer. The hammer hits the spike with a speed of 63.5 m/s. If one fifth of the hammer’s kinetic energy is converted to the internal energy of the hammer and spike, how much does the total internal energy increase? Answer in units of J
A railroad car with a mass of 1.95 ✕ 104 kg moving at 2.88 m/s joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.56 m/s. (a) What is the speed of the three joined cars after the collision? m/s (b) What is the decrease in kinetic energy during the collision? J
A railroad car of mass 2.30E+4 kg moving with a speed of 3.00 m/s collides and couples with two other coupled railroad cars each of the same mass that are already moving in the same direction at a speed of 1.50 m/s. What is the speed (in m/s) of the three coupled cars after the collision? Tries 0/3 How much kinetic energy (in J) is lost in the collision? Tries 0/3
A crate of mass 10.8 kg is pulled up a rough incline with an initial speed of 1.48 m/s. The pulling force is 98 N parallel to the incline, which makes an angle of 19.4° with the horizontal. The coefficient of kinetic friction is 0.400, and the crate is pulled 5.08 m. (a) How much work is done by the gravitational force on the crate? J (b) Determine the increase in internal energy of the crate–incline system owing to friction....
A crate of mass 10.6 kg is pulled up a rough incline with an initial speed of 1.52 m/s. The pulling force is 106 N parallel to the incline, which makes an angle of 19.4 degree with the horizontal. The coefficient of kinetic friction is 0.400, and the crate is pulled 5.06 m. How much work is done by the gravitational force on the crate? J Determine the increase in internal energy of the crate-incline system owing to friction. J...
A railroad car of mass 1.85e4 kg moving at 3.14 m/s collides and
couples with two coupled railroad cars, each of the same mass as
the single car and moving in the same direction at 1.24 m/s.
b)
How much kinetic energy is lost in the collision?
USE THIS DATA:
17400 kg; 3.27 m/s; (help me see how you get the correct answer
of 2.39e4 J.
16-4 A railroad car of mass 1.85e4 kg moving at 3.14 m/s collides and...
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 12100 kg railroad car is coasting on a level, frictionless track at a speed of 19 m/s when a 4790 kg load is dropped onto it. If the load is initially at rest, find the new speed of the car and the % change of the kinetic energy.
A 12100 kg railroad car is coasting on a level, frictionless track at a speed of 19.0 m/s when a 4790 kg load is dropped onto it. If the load is initially at rest, find the new speed of the car and the % change of the kinetic energy.
A crate of mass 10.8 kg is pulled up a rough incline with an initial speed of 1.52 m/s. The pulling force is 94 N parallel to the incline, which makes an angle of 20.8° with the horizontal. The coefficient of kinetic friction is 0.400, and the crate is pulled 4.94 m. (a) How much work is done by the gravitational force on the crate? (b) Determine the increase in internal energy of the crate–incline system owing to friction. (J)...