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You throw a ball straight down from an apartment balcony to the ground below. The ball has an initial velocity of 4.95 m/s, directed downward, and it hits the ground 1.82 s after it is released. Find the height of the balcony.
A compact disc rotates from rest up to an angular speed of 31.4 rad/s in a time of 0.892 s. What is the magnitude of the tangential acceleration
A model rocket launches with an initial velocity of 6 m/s, at an angle of 88 degrees (with respect to the horizon). What is the maximum height attained by the rocket
A puck slides on a surface for 5.6 m before it stops. If it was moving at a velocity of 15 m/s and has a mass of 1.2 kg, what is the force of friction exerted on the puck
Three charges are fixed to an x, y coordinate system. A charge of +20 µC is on the y axis at y = +3.0 m, Determine the magnitude and direction of the net electrostatic force on the charge at x= +3.0 m
A ski starts from rest and slides down a 22° incline 75 m long. If the coefficient of friction is 0.09, what is the ski's speed at the base of the incline? If there is snow level at foot of the incline and it has the same coefficient of friction, ..
A solid block of wood is a cube whose volume is 1x10^-3m^3. When dropped into a swimming pool, How much does the block of wood weigh
An 85 kg linebacker is running at 8 m/s directly toward the sideline of a football field. Determine their common speed and direction immediately after they collide
When the temperature of a thin silver [? = 19 × 10-6 (C°)-1] rod is increased, the length of the rod increases by 3.7 × 10-3 cm. By how much does the length of the gold rod increase
a block of mass 2.5 kg is placed at a distance d=0.300 m from the spring. from this posistion the block is projected toward the spring with a speed v
A 0.5-cm-wide diffraction grating has 1315 slits. What are the angles (in degrees) of the first two diffraction orders
A circular loop in the plane of the screen lies in a 0.60 T magnetic field pointing into the screen. The loop's diameter changes from 18.5 cm to 6.0 cm in 0.50 s.
In the movie Once Upon a Time in America, set in the Prohibition era, a clever ploy is used by bootleggers transporting liquor by boat. Find the volume of the balloon and the required weight of salt
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