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At the end of an amusement park ride, you want the gondola to stop without the acceleration exceeding 2 g's. If the total mass of the gondola and occupants is 1,649 kg, what is the maximum allowed braking force? (The answer is a positive braking force, not a negative force).
A rock is thrown downward into a well that is 8.90 deep. If the splash is heard 1.20 seconds later, what was the initial speed of the rock? Take the speed of sound in the air to be 343 m/s.
A 1.0 mCi source of Phosphorus called P-32, a beta emitter, is imlanted in a tumor where it is to administer 36 Gy. how long should the source remain implanted
A layer of oil (n = 1.45) floats on an unknown liquid. A ray of light originates in the oil and passes into the unknown liquid. What is the index of refraction of the unknown liquid
a pumpkin is pushed horizontally at a speed of 2.2 m/s off of a desktop that is 0.8 meters above the floor. how far frome the base of the desk
A circuit contains a resistor in series with a capacitor, the series combination being connected across the terminals of a battery. The time constant for charging the capacitor is 5.6 s when the resistor has a resistance of 2.0 x 104 ? What would ..
How much heat would flow by the glass in 1.00 h if there is a temperature difference of 3^circ {rm C} between the inner and outer surfaces.
When a voltage difference is applied to a piece of copper wire, a 5.0 mA current flows. If the copper wire is replaced with a silver wire with twice the diameter of the copper wire
Twenty particles, each of mass m0 and confined to a volume V, have various speeds: two have speed v, three have speed 2v, five have speed 3v, determine the pressure they exert on the walls of the vessel
A piece of copper wire joins a piece of aluminum wire whose diameter is twice that of the copper. The same current flows in both wires, Compare the drift speeds in each
How much power is needed to push a 85kg chest at 0.72m/s along a horizontal floor where the coefficient of friction is 0.76
Winds pick up suddently,increasing the wave's amplitude to 6m. Explain how does this change in amplitude affect the wave's frequency and the amount of energy it transports?
Furthermore, describe any differences in kinetic energy and gravitation potential energy among these balls while they hit the ground.
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