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A 2400 W engine pulls a 200 kg block at constant speed up a 12.0 m long, 25.0° incline. Determine long does it takes to cover this distance.
a 18.0-kg cannonball is fired from a cannon with muzzle speed of850msat an angle of33.0degwith the horizontal. a second
Lake Erie contains roughly 4.00 X 1011 m3 of water. Find how much energy is required to raise the temperature of that volume of water from 11.0°C to 12.0°C
During a golf drive, the angular velocity of the driver is 20 rad/s just before impact with the golf ball. If the distance from the club head to the axis of rotation is 2.0 m
Three forces are applied to a wheel of radius 0.290 m, as shown in the figure below. One force (F1 = 12.0 N) is perpendicular to the rim, one (F2 = 9.05 N) is tangent to it, and the other one (F3 = 13.3 N) makes a 40.0° angle with the radius. What..
at a given instant a particle with a mass of 5.00 x 10-3 kg and a charge of 3.50 x 10-8 c has a velocity with a
A 1450 kilogram car is traveling with a speed of 12 m/s on a frictionless, Find what initial speed should the car have to compress the spring by 25.0 centimeter
A 40.00-W eletric motor is able to accelerate a 8755 g car from rest to 30.00 mph in 31.10 seconds. Calculate the efficiency of the motor
a beam of white light makes an angle of incidence of 38deg with a glass prism of index of refraction of 1.5 and
A train at rest emits a sound at a frequency of 1000 Hz. What is the frequency heard by the observer
A stroboscope is a light that flashes on and off at a constant rate. It can be used to illuminate a rotating object, and if the flashing rate is adjusted properly, the object can be made to appear stationary.
An emf is induced in a conducting loop of wire 1.11m long as its shape is changed from square to circular.Find the average magnitude of induced emf if the change in shape occurs in 4.03s and the local 0.135-T magnetic field is perpendicular to the ..
A skier starts from rest at the top of a hill that is inclined at 10.2° with the horizontal. The hillside is 150 m long, and the coefficient of friction between snow and skis is 0.0750. At the bottom of the hill, the snow is level and the coefficient..
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