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Entrance and exit ramps for freeways are often circular stretches of road. As you go around one at a constant speed, you will experience a constant acceleration. Suppose you drive through an entrance ramp at a modest speed and your acceleration is 2.5m/s^2. What will be the acceleration if you double your speed?
A television set connected to a 120 outlet consumes 76 of power. -How much current flows through the television? -How long does it take for 10 million electrons to pass through the TV?
A nuclear power plant generates(output) 500 MW. it is 34% efficient, How much does the water temperature rise
a 55 kg swimmer is standing on a stationary 175 kg floating raft. the swimmer then runs off the raft horizontally with a velocity of + 3.7 m/s realtive to the shore. Find the recoil velocity that the raft would have
A circus performer stretches a tightrope between two towers. He strikes one end of the rope, find the tension in the tightrope
430 cm3 of water at 86°C is mixed with 120 cm3 of water at 11°C. Calculate the final equilibrium temperature, What is the equilibrium temperature after initial heat loss
find What is the impulse delivered by the bat.
A series RCL circuit contains a 4.99-µF capacitor and a generator whose voltage is 11.6 V. At a resonant frequency of 1.20 kHz the power delivered to the circuit is 24.1 W. Find the value of the inductance
An x-ray tube is operated at 48200 V. Calculate the minimum wavelength of the radiation emitted by this tube
A thin film of water sits on top of a flat piece of glass, and light is incident from below, what is the angle of refraction of the final outgoing ray
A high-pressure gas cylinder contains 40.0 L of toxic gas at a pressure of 1.70 ? 107 N/m2 and a temperature of 18.0°C. What is the final pressure in the tank, assuming a negligible amount of gas leaks while being cooled
A 45.2-kg girl is standing on a 143-kg plank. Both originally at rest on a frozen lake that constitutes a frictionless, What is the girls velocity relative to the ice surface
An AC voltage source, with a peak output of 200V, is connected to a 50 ohm resistor. What is the rate of energy dissipated due to heat in the resistor
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