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An airplane is flying with a velocity of 81.0 m/s at an angle of 23.0 degrees above the horizontal. When the plane is a distance 105m directly above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far from the dog will the suitcase land in m?
Find the electric field inside a hollow plastic ball of radius R that has charge Q uniformly distributed on its outer surface
A 4 kg block, resting on a horizontal surface, is struck by a bullet moving horizontally with a speed of 200 m/s. How much energy is dissipated (mostly as heat) in this collision process
A liquid compresses 2.0 percent when subjected to a pressure of 34 MPa. What is the bulk modulus of the liquid
The potential difference between two points in a wire 10 m apart is 12 V. When the current density is 4*10^7 A/m^2. find the resistivity of the material in the wire
A rocket starts from rest and moves upward from the surface of the earth, What is the speed of the rocket when it is 340m above the surface of the earth
A leaf of area 36cm2 and mass 4.8×10?4kg directly faces the Sun on a clear day. The leaf has an emissivity of 0.85 and a specific heat of 0.80 kcal/kg?K. Estimate the rate of rise of the leaf's temperature
A 23 kg child goes down a straight slide inclined 38? above horizontal. The child is acted on by his weight, How large is the normal force of the slide on the child
A piece of string wraps around a cylinder 8 times. The length of the string is 14 cm. calculate the circumference of the cylinder.
A golf ball is struck with a five iron on level ground. It lands 92.7 away 4.10 later. find the magnitude of the initial velocity
He is unable to get to the other side because of a lack of friction between his shoes and the ice. How long does it take him to reach the south shore
A dentist's drill starts from rest. After 3.20 s of constant angular acceleration it turns at a rate of 2.8 104 rev/min. Find the drill's angular acceleration
A set of coupled pendula has m = 0:2kg for both masses, but k and l are unknown. At t = 0, the left hand mass is held at xL = 2:5cm and the right hand mass is held at xR = 0, Find the approximate values of k and l
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