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The brakes are applied to a car traveling on a dry, level highway. A typical value for the magnitude of the car'sacceleration is 5.35 m/s2. If the car's initial speed is 29.7 m/s, how long does it take to stop and how far does it travel, starting from the moment the brakes are applied?
a) time to stop_____sb) stopping distance____m
A crate of mass 2000 kg is hanging from a crane at the end of a cable 12 m long. what angle will the cable finally make with the vertical
Julie drives 100 mi to Grandmother's house. On the way to Grandmother's, Julie drives half the distance at 44.0, What is her average speed on the return trip
Two bullets from opposite sides collide in midair during battle. What fraction of the original kinetic energy was lost in the collision
Two pots are identical except that the flat bottom of one is aluminum, whereas that of the other is copper. find the temperature of the heating element on which the copper bottom rests
A flywheel rotates at 7200 rev/min when the power is suddenly cut off. How many revolutions does the flywheel makes before coming to rest
A solenoid is made by wrapping a wire so that it makes a solenoid (coil) having 500 turns of diameter 8.00 cm and length 40.0 cm. Find the inductance of this solenoid
A circular bird feeder 20 cm in radius has rotational inertia 0.12kg*m^2 . The feeder is suspended by a thin wire and is spinning slowly at 5.4 rpm. What is the rotation rate after the bird lands
A 54.1-kg ice skater is standing at rest on a frozen lake. The friction between his skates and the surface of the ice is negligible. what is the magnitude of his recoil velocity
The velocity of the transverse waves produced by an earthquake is 4.94 km/s, while that of the longitudinal waves is 8.8426 km/s. How far away was the earthquake
The period of oscillation of an object in a frictionless tunnel running through the Earth is 84.3 min. What is the time of oscillation of an object in a similar tunnel on the Moon.
a chain is held on a frictionless table with 1/5 of its length hanging over the edge. how much work is required to pull the hanging part back
A cycle receives 500 Btu of heat at 1000°F and rejects 200 Btu of heat at 200°F. There is work input of 275 Btu and work output of 575 Btu. Compute the cycle efficiency
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