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Two billiard balls of equal mass undergo a perfectly elastic head-on collision. If one ball's initial speed was 2.00m/s, and the other's was 2.80m/s in the opposite direction, what will be their speeds after the collision?
Fluid is flowing through a pipe at a rate of 100 gal/min. The inlet pressure is 20 psig and the outlet pressure is 0 psig. At what rate [Btu/(hR)] is entropy generated
An electric fan is running on HIGH. After the LOW button ispressed, the angular speed of the fan decreases to 83.8 rad/s in1.75 s. Determine the intial angular speed of the fan
We capture 3.40 liters of gas in a sealed container at one atmosphere and 22 °C. Determine how many moles are in the container
A 5.05-kg ball of clay is thrown downward from a height of 2.77 m with a speed of 4.61 m/s onto a spring with k = 1730 N/m. Find the total work done on the clay during the spring's compression
When a battery is connected to the plates of a 6.00-µF capacitor, it stores a charge of 108.0 µC. What is the voltage of the battery? If the same capacitor is connected to another battery and 90.0 µC of charge is stored on the capacitor, what is ..
An athlete swims the length L of a pool in a time t1 and makes the return trip to the starting poisition in a time t2. (a) If she is swimming initially in the positive x-direction, determine her average velocities symbolically in (a) the first hal..
An inductor has inductance of 0.340 H and carries a current that is decreasing at a uniform rate of 22.0 mA/s. Determine the self-induced emf in this inductor
An electric drill starts from rest and rotates by a constant angular acceleration. After the drill has rotated through a certain angle, the magnitude of the centripetal acceleration of a point on the drill is twice the magnitude of the tangential acc..
question1a race car starts from break on a circular track of radius 463 m. the cars speed increases at constant rate of
at point A, 3.00 m from a small source of sond that is emitting uniformly in all directions, the sound level is 53.0 dB. what is the intensity of the sound at point A
A 78.0kg skydiver can be modeled as a rectangular "box" with dimensions 21.0cm × 41.0cm × 185cm. What is his terminal speed if he falls feet first
the sound from a very high burst of fireworks takes 4.5seconds to arrive at your eardrums. the burst occurs 1500m above
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