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Two forces act on a 55 kg object. One force has magnitude 65 N directed 59° clockwise from the positive x-axis and the other has a magnitude 35 N at 32° clockwise from the positive y-axis. What is the magnitude of this object's acceleration?
An individual is running around a turn with an 11 m radius at 3.75 m/s. What is the runner's centripetal acceleration
on a spacecraft two engines fire for a time of 541 s. one gives the craft an acceleration in the x direction of ax
If a flea can jump straight up to a height of 22.0 , what is its initial speed as it leaves the ground, neglecting air resistance?
A perfectly reflecting flat mirror is uniformly illuminated by light striking it perpendicularly. Calculate the intensity of the light
A 65.0 kg base runner begins his slide into second base when he is moving at a speed of 4.5 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base.
Released from rest at the same height, a thin spherical shell and solid sphere of the same mass m and radius R roll without slipping down an incline through the same vertical drop H. Each is moving horizontally as it leaves the ramp.
Two billiard balls are initially traveling toward each other at speeds of 1.40 m/s for ball 1 and 4.35 m/s for ball 2. Find the final velocities of both balls
Jill of the Jungle swings on a vine 6.9 m long. What is the tension in the vine if Jill, whose mass is 63 kg, is moving at 2.4 m/s when the vine is vertical
500 J of energy are transferred to a system in the form of heat while the thermal energy increases by 100 J . How much work is done by the system
A constant force, F = (4.63, ?3.79, 1.96) N,acts on an object of mass 18.9 kg, What is the total work done by this force
A child of mass 47 kg jumps onto the edge of a merry-go-round of mass 155 kg and radius 1.7 m that is initially at rest, What is the angular velocity of the merry-go-round plus child after the child jumps onto the merry-go-round
The Earth is 1.49 ? 1011 meters from the sun. If the solar radiation at the top of the Earth's atmosphere is 1 340 W/m2, what is the total power output of the sun?
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