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A simple pendulum of length 2.00 m is made with a mass of 2.00 kg. The mass has a speed of 3.00 m/s when the pendulum is 30.0°above its lowest position.
(a) What is the maximum angle away from the lowest position the pendulum will reach?
(b) What is the speed of the mass when the pendulum is 45° above its lowest position?
A house has a floor area of 115 m2 and an outside wall that has an area of 24 m2. Determine the magnetic flux through the wall if the wall faces east
Bats are capable of navigating using the earth's field-a plus for an animal that may fly great distances from its roost at night. What is the proper orientation of the coil
A laser used in eye surgery emits a 3.08 mJ pulse in 1.04 ns, focused to a spot 32.4 um in diameter on the retina. Calculate (in SI units) the power per unit area at the retina
A physics student in a hot air balloon ascends vertically at constant speed. suppose the following four forces that arise in this situation.
A ball is thrown horizontally from the top of a 60.0-m building and lands 100.0 m from the base of the building. Ignore air resistance. (a) How long is the ball in the air?
A 2500-kg sport utility vehicle travelling at 92 km/h can be stopped in 0.25 s if it hits a concrete wall. Assume a 60 kg person was in the car that hit this wall. The velocity of the person equals that of the car both before and after the crash, and..
(a) Determine the sound intensity at each of the three patches. (b) The sound power that passes through each of the patches is 2.00 10-3 W. Find the area of each patch.
A movie star catches a reporter shooting pictures of her at home. She claims the reporter was trespassing and to prove her point, How far away from the subject was the reporter standing
How much work does the string do on the boy if the boy walks a horizontal distance of 11m away from the kite? How much work does the string do on the boy if the boy walks a horizontal distance of 11m toward the kite.
What minimum constant acceleration does this need if the aircraft is to be airborne after a takeoff run of 250 m.
A uniform magnetic field of magnitude 1.00 T is directed perpendicular to the plane of a rectangular loop having dimensions 8.1 cm by 10 cm
The nucleus of a 125Xe atom (an isotope of the element xenon with mass 125 u) is 6.0 fm in diameter. It has 54 protons and charge q =+54e. What is the proton's acceleration
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