How much thermal energy is produced in the collision
Two railroad cars, each of mass 6490 kg are traveling 93 km/h toward each other. They collide head-on and come to rest. How much thermal energy is produced in this collision?
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A car is moving at 487 m/s. The driver sees a pothole in the road 31 m ahead and applies the breaks. The car is traveling at 29 m/s when it hits the pothole. For how long did the car decelerate before it hit the pothole? Give your answer to the neare
A 3.0mu*F capacitor, a 9.0mu*F capacitor, and a 19mu*F capacitor are connected in parallel. What is their equivalent capacitance?
Find the relative velocity (magnitude and direction) of the sailboat as observed by the passengers on the oceanliner. Determine the directional angle relative to due north.
A diver 40 m deep in 10 C fresh water exhales a 1.5 cm diameter bubble.What is the bubble's diameter just as it reaches the surface of the lake, where the water temperature is 20 C Assume that the air bubble is always in thermal equilibrium with t
A car with a constant speed of 83km/h enters a circular flat curve with a radius of curvature of .50 km. Calculate centripetal acceleration of the car. If the coefficient of friction between tires and road is 1.2, then will the car stay on road o
(a) If the radius of the curve is 270 m, what is the correct angle of banking of the road? (b) If the curve were not banked, what would be the minimum coefficient of friction between tires and road that would keep traffic from skidding out of the
A hollow cylinder with an inner radius of 3mm and an outer radius of 20mm conducts a 3A current. What is the magnitude of the magnetic field at a point 12mm from its center? Assume that the current density is uniform throughout the wire.
Light is an electromagnetic wave and travels at a speed of 3.00 x 10^8 m/s. The human eye is most sensitive to yellow-green light, which has a wavelength of 5.45 x 10^-7m. How you find out the frequency of this light?
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