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A sealed tank containing seawater to a height of 12m also contains air above the water gauge pressure of 5 atm. Water flows out from the bottom through a small hole. Calculate the exit speed of the water.
Two point charges each have a value of 30.0 mC and are separated by a distance of 4.00 cm. What is the electric field midway between the two charges
In procedure 2, suppose the convex lens is placed at the 44 cm mark, and an image forms on the screen at the 57.6 cm mark. Find the focal length of this lens
12 volts is applied across a 4 ohm resistor. How much power is dissipated by the resistor
a test charge of +3x10-7 C is located 5cm to the right of a charge of -4x10-6 C and 10 cm to the left of a charge of -1x10-6 C.the three charges lie on a straight line. find the force on the test charge
A semi-trailer is coasting downhill along a mountain highway when its brakes fail. The driver pulls onto a runaway truck ramp that is inclined at an angle of 15.0° above the horizontal. What was the truck's initial speed
An observer, whose eyes are 1.92m above the ground, is standing 31 m away from a tree. The ground is level and the tree is growing perpendicular to it. The observer's line of sight with the treetop makes an angle of 21° above the horizontal. How t..
A box is given a push so that it slides across the floor. Part A How far will it go, given that the coefficient of kinetic friction is 0.15 and the push imparts an initial speed of 3.6 m/s ? Express your answer to two significant figures and inclu..
What is the kinetic energy of a 0.5-kg object moving at a constant speed of 2 m/s?
A 2150 kg satellite is in a circular orbit 780 km (780 x 103 m) above the surface of the earth. What is the gravitational force on the satellite due to the earth? What is the speed of the satellite in its orbit? What is the period of the orbit?
A figure skater is spinning with an angular velocity of +13 rad/s. She then comes to a stop over a brief period of time. Determine the time during which she comes to rest
A 200 kilogram roller coaster car travels over the top of a 40-m high hill (Hill A) traveling at 10 meter per second. Obtain the speed of the car at the top of the second hill
You purchase a rectangular piece of metal that has clemencies 5.0 x 15.0 x 30.0 nun and mass 0.0158 kg. The seller tells you that the metal is gold. To check this, you compute the average density of the piece. What value do you get? Were you cheat..
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