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A 2.1*10(3)kg car starts from rest at the top of a driveway that is sloped at an angle of 20.0(degrees) with the horizontal.An average friction force of 4.0*10(3)N impedes the car's motion so that the car's speed at the bottom of the driveway is 3.8m/s.What is the length of the driveway?
Two narrow slits 3 mm apart are illuminated with light from a sodium lamp (lamda = 589 nm), What is the thickness of this glass
you are the prosecuting attorney in a case. you are eliciting testimony from your star witness who has said that he was
A 10.0 cm -long solenoid of diameter 0.400 cm is wound uniformly with 800 turns. A second coil with 50.0 turns is wound around the solenoid at its center. What is the mutual inductance of the combination of the two coils?
The amplitude of a lightly damped oscillator decreases by 2.8% during each cycle. What percentage of the mechanical energy of the oscillator is lost in each cycle?
Assuming that vertical = 0 degrees, the angle of the pendulum oscillates between the maximum amplitudes: -theta max and theta max. What is the angle of the pendulum at which the gravitational potential energy is minimum
An elephant that has a mass of 7000 kg evenly distributes her weight on all four feet. estimate the pressure on each foot
question an object attached to a spring exhibits simple harmonic motion with an amplitude of 10.0cm. how far from
A future geosynchronous space station will be used to collect solar energy. The energy is transmitted back to earth as an electromagnetic beam. how large are the station's solar panels, assume 100% efficiency
If you weigh 670 on the earth, illustrate what would be your weight on the surface of a neutron star that has the same mass as our sun and a diameter of 19.0?
A one-meter-long glass tube is sealed at one end. How far from the midpoint will the mercury be when the closed end of the tube is immersed in boiling water
A machine does work at a rate given by Pct^2 , where c = 15W/s^2 and t is time. Find the work done by the machine between 15s and 20s? huh
a coil whose resistance is 60 ohms and one whose resistance is 40 ohms are connected in parallel to a 120-V line. what is the current in each coil
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