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A 2.9-kg toy locomotive is pulling a 1.7-kg caboose. The frictional force of the track on the caboose is 0.54 N backward along the track. If the train is accelerating forward is 2.6 m/s2, what is the magnitude of the force exerted by the locomotive on the caboose?
The critical angle for total internal reflection for ice surrounded by air is 49.8°. Calculate the Brewster angle for ice if the light is incident from the air
A nozzle is now attached to the end of the hose. If the nozzle diameter is one-third the diameter of the hose, what is the speed of the water leaving the nozzle
Frames S and S' are moving relative to each other along the x and x' axes. They set their clocks to t = t' = 0 when their origins coincide, Compute the spacetime interval ?s between the events
A capacitor with an initial potential difference of 100 V is discharged through a resistor when a switch between them is closed at t = 0. At t = 10.0 s, What is the time constant of the circuit
Suppose a planet is discovered orbiting a distant star with 11 times the mass of the Earth and 1/11 its radius. How does the escape speed on this planet compare with that of the Earth
The specific heat of a certain metal can be determined by measuring the temperature change that occurs when a piece of the metal is heated, What is the specific heat of the metal
The infamous chicken is dashing toward home plate with a speed of 5.80 while he decides to hit the dirt. The chicken slides for 1.1, just reaching the plate as he stops (safe, of course).
As a crude model for lightning, consider the ground to be one plate of a parallel-plate capacitor and a cloud at an altitude of 510m to be the other plate.
A ray of light strikes a flat block of glass (n = 1.53) of thickness 1.80 cm at an angle of 36.0° with the normal. find the angles of incidence and refraction at each surface
A block "A" of mass 3 kg on the table is connected to another block "B" of mass 2 kg hanging beneath by a string of negligible mass which passes through the hole. Calculate the unknown angular speed
Michael drops a penny into a river from a bridge 44 m above the water. Another penny is thrown vertically down by his friend Jeremy 1.00 second after. What is the initial speed of the second stone
A steel beam is placed vertically in the basement of a building to keep the floor above from sagging. Find the vertical compression of the beam
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