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A child slides down a slide with a 30 degree incline, and at the bottom her speed is precisely two-thirds what it would have been if the slide had been frictionless. Find coefficient of kinetic friction between slide and child.
a 3.5-kg block and a 1.9-kg block connected by a string that passes over a small pulley hang vertically. calculate the
An emf of 20 V maximum and frequency 18 Hz is applied to a24-mF capacitor. What is the maximum current in the circuit?
a pendulum is made of a uniform stick of length l. it is allowed to swing in a vertical plane. where should the pivot
A monatomic ideal gas is held in a thermally insulated container with a volume of 0.1000 m^{3}. The pressure of the gas is 110 kPa, and its temperature is 327 K.
A laser emits 7.50 × 1017 photons per second in a beam of light that has a diameter of 1.89 mm and a wavelength of 514.5 nm. determine the average electric field strength
A tennis player receives a shot with the ball ( 0.0600kg) traveling horizontally at 50.0 m/s, what is the impulse delivered to the ball by the racket
An object with a mass of m = 5.3 kg is attached to the free end of a light string wrapped around a reel of radius R = 0.255 m and mass of M = 3.00 kg, Determine the speed with which the object hits the floor
A rocket with mass M is fired vertically upward. At the instant it reaches an altitude of 800m and a speed of v=350 m/s, it explodes into 3 fragments. one fragment with mass 1/2M moves upward with a speed of v1=400m/s following the explosion. The sec..
Your groceries are in a bag with paper handles. Find what is the greatest mass of groceries that can be lifted safely with this bag, given that the bag is raised with constant speed
Another approach to the Lorentz Transformations. Relativists often use a quantity calledrapidity to describe the frame transformations. determine the function f(R)
A motor may be modeled as a series RL circuit. A particular motor operates from an ordinary 60-Hz wall outlet with Erms= 115 V. what is the inductive reactance of the circuit
q1. a person eats a dessert that contains 26o calories. this skin temperature of this individual is 38 degrees celsius
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