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You are on a roof, 14.0 m above ground. Dr singer who is 1.78 m tall is 5.0m from the building entrance. You wish to hit Dr singer on the head with an egg by throwing it horizontally from the building edge.Ignore air resistance.
a. How fast should you throw the egg to hit him in the head?
b. How long is the egg in the air?
A solenoid is 8.93 cm long, 1.56 cm in diameter, and has 310 turns. find the magnetic flux through one turn of the solenoid
find the period of this oscillation.
Illustrate what is the maximum height of each ball after the elastic collision? What are the coordinates of the CM of the two balls when the lighter ball was pulled up? Consider the heavier ball to be at the origin before the collision.
In 1926, Albert Michelson measured the speed of light with a technique similar to that used by Fizeau. Find the required angular speed
An 840 kg car needs to round a level curve with a radius of 23m.The driver wants to proceed at 56 kph. How much work does the friction force do on the car
a proton and an electron are separated by 3.5 nm, what is the magnitude of the force on the electron and proton
Determine the mass of a 4.6 meter beam, if it is balanced on a fulcrum 2.16 meters from the left end. A 820 N man stands on the very left end, and a 360 N girl stands on the right end. (in kg)
q1. a lightning bolt transfers 6.0 coulombs of charge from a cloud to the ground in 2.0 10-3 second. what is the
Six grams of helium (molecular mass = 4.0 u) expand isothermally at 320 K and does 9000 J of work. determine the ratio of the final volume of the gas to the initial volume
Two cars leave a stoplight, one 0.5128 s before the other. The second car accelerates with twice the acceleration of the first. What is the ratio of their speeds at that instant
A uniform 2.95- kg spinning disk with a radius of 0.243 m is brought to rest by a brake-pad pressed against the side 0.165 m from the rotation axis. What frictional force was applied by the brake pad
A conducting spherical shell with inner radius a and outer radius b has a positive charg Q located at its center. derive expressions for the electric field magnitude in terms of the distance r from the center
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