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A 2000kg car accelerates from 20 to 60km/h on an uphill road. The car travels 120m and the slope of the road from the horizontal is 25 degrees. Determine the work done by the engine.
The electric field strength is 2.40 x 10^4 N/C inside a parallel-plate capacitor with a 1.40 mm spacing, What is the electron's speed when it reaches the positive plate
Here on Earth you hang a mass from a vertical spring and start it oscillating with amplitude 1.9 cm. How long does it take for the mass to make one round trip
A surface is infinitesimally close to and surrounds a dipole. The electric flux during the surface must be zero, since the net charge it surrounds is zero. How is it possible for the dipole to have an electric field and be consistent with Gauss' t..
An iron rod is heated by a welder's torch. Initially it glows a dull red, then a brighter orange, and finally very bright white. Discuss this sequence in terms of black-body radiation.
A 60 kg crate is lowered using arope over a fixed support. The rope exerts a constant upward forceof 500 N.? How fast is the crate traveling when it hits the floor
A slingshot consists of a light leather cup containing a stone. The cup is pulled back against two parallel rubber bands. With what speed does the stone leave the slingshot
a rod of length L lies along the x-axis between x=A and x=A+L. The rod has a non-uniform charge density, What is the magnitude of the electric field at the origin
A vertical wall (5.4 m 2.4 m) in a house faces due east. A uniform electric field has a magnitude of 164 N/C. This field is parallel to the ground and points 32° north of east. What is the electric flux through the wall?
Different values of the energy
By what factor must the mass of the ice be increased if the system is to have the same final temperature?
Kelli weighs 417 N, and she is sitting on a playground swing that hangs 0.44 m above the ground. Her mom pulls the swing back and releases it when the seat is 1.00 m above the ground. Imagine that air resistance is negligible.
Two boxes A and B are connected to each end of a light vertical rope. A constant upward force 80.0 is applied to box. Starting from rest, box descends 10.4 in 3.40. The tension in the rope connecting the two boxes is 37.0
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