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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 is the net torque on the wheel due to these three forces for an axis perpendicular to the wheel and passing through its center? (Let counterclockwise torques be positive.)
A park merry-go-round consists of a 220 kg circular wooden platform 4.10 m in diameter. What is the kinetic energy of the merry-go-round
a cube of wood floating in water supports a 200g mass at the centre of its top face. when the mass is removed, the cube rises by 2cm. determine the volume of the cube
The centers of a 11.0kg lead ball and a 150g lead ball are separated by 7.00cm. What gravitational force does each exert on the other
A Dodge Caravan begins rolling from rest. Its tires undergo a constant of angular acceleration of 0.34 rad/s^2, What is angular speed of each tire after 3 revolutions
Small spheres of diameter 0.92 mm fall through 20°C water with a terminal speed of 0.90 cm/s. Calculate the density of the spheres
A cubical block of ice 56.0 cm on an edge is placed on a level floor over a speck of dust. How many cm below the upper surface of the ice
A 2.40-kg textbook is forced against a horizontal spring of negligible mass and force constant 300 N/m , compressing the spring a distance of 0.260m. find how far the textbook moves from its initial position before coming to rest
An automobile has a mass of 1690 kg and a velocity of 23.8 m/s. It makes a rear-end collision with a stationary car whose mass is 2100 kg. determine how far the cars skid before coming to rest
A person jumps from the roof of a house 3.6-m high. When he strikes the ground below, Find his velocity just before his feet strike the ground
The gearshift lever AB for the transmission of a sports car has position vector r whose line of action passes through points A and B. The driver applies the force F to the knob B of the lever to shift gears. Find out the magnitude of the component..
A skater of mass 74.5 kg initially moves in a straight line at a speed of 4.80 m/s. what is the skater's final velocity
The wavelength of light from a monochromatic source is measured to be 6.80 X 10^-7 m. What color would you observe
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