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A rollercoaster car starts at rest on top of a frictionless hill ofheight 17 m, slides down to ground level,and then into a frictionless loop of radius 5 m.
When the car is at the side of the loop (levelwith the center), find the magnitude of the car's tangential acceleration:
an axon is the relatively long tail-like part of a neuron or nerve cell. the outer surface of the axon membrane
an uncharged capacitor and a resistor are connected in series to a source of emf. if 6.00 v c 21.0 microf and r 100
A 798 kg satellite is in a circular orbit about the Earth at a height above the Earth equal to the Earth's mean radius. Find the period of its revolution
Some gliders are launched from the ground by means of a winch, which rapidly reels in a towing cable attached to a glider. what average power must the winch supply in order to accelerate a 184 kg ultralight glider from rest to 26 m/s over a horizo..
A laser emits a narrow, circular beam of light. The radius of the beam is 1.37×10-3 m, and the power is 1.44×10-3 W
flywheels are large massive wheels used to store energy. they can be spun up slowly then the wheels energy can be
The voltage drop along a 30.0m segment of a power line made from copper wire (a very good conductor) is 1.2V, while carrying a current of 25.0 A. How large is the electric field along the wire
A car of mass 1290 kg rests on a hydraulic lift with a piston of radius 0.22 m that is connected to a second piston of radius 0.027 m. what is the force at the second piston
A long, straight wire carrying a current of 4.00 A is placedalong the axis of a cylinder of radius 0.500 m and a length of 2.00m. Determine the total magnetic flux through the cylinder
A transformer with a turns ratio (secondary/primary) of 1:15 is used to step down the voltage from a 120-V wall socket to be used in a battery recharging unit
The half life for the alpha decay of uranium 238 is 4.47x10^9 yrs old. Determine the age (in years) of the rock specimen that contains 60% of its original number of Uranium 238 atoms.
How much time would be required to stop a 2,000kg car that is moving at 80.0 km/hr if the braking force is 8,000N? If a space probe weighs 39,200N on the surface of the earth, what will be the mass of the probe on the surface of Mars?
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