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A boy uses a slingshot to launch a pebble straight up into the air. The pebble reaches a height of 24.0 m above the launch point 2.3 seconds later. Assume air resistance is negligible.
(a) What was the pebble's initial speed (just after leaving the slingshot)?
(b) How much time did it take for the pebble to first reach a height of 12.0 m above its launch point?
A ladder 8.00 m long leans against the side of a building, what is the horizontal distance from the bottom of the ladder to the building
One mole of a monatomic gass initially at 273 K and 1 atm is compressed isothermally (T constant) from volume 22.4 L to 11. 4 L, Find the final pressure and draw a PV diagram, Labeling the initial and final states 1 and 2
A box is sliding down an incline tilted at an angle 14.0° above horizontal. The box is sliding down the incline at a speed of 1.70 m/s. The coefficient of kinetic friction between box and incline is 0.380. How far does the box slide down the incli..
A small ball of 53 grams is suspended from a string of length 86 centimeters and whirled in a circle lying in the horizontal plane. If the string makes and angle of 31 degrees with the vertical, find out the centripetal force experienced by the ball...
A 100-m-long train accelerates uniformly from rest. If the front of the train passes a railway worker 166-m down the track at a speed of 21 m/s, what will be the speed of the last car as it passes the worker.
To what distance x can a person who weighs 411-N walk on the overhanging part of the plank before it just begins to tip.
Find out separation between the two sources
A uniform stick of length L = 1.8 m, width W = 10.0 cm, and mass M = 4.8 kg oscillates as a physical pendulum, Calculate the minimum value of the period of the pendulum
A 0.12-kg ball is placed in a shallow wedge with an opening angle of 120°, as shown in the figure. For each contact point between the wedge and the ball, determine the force exerted on the ball. Assume the system is frictionless. Find contact force o..
Calculate the direction, magnitude and line of action of the vertical and horizontal components of hydrostatic force acting on a surface.
Explain how will the acceleration due to gravity at the surface of planet X compare to the acceleration due to gravity at the surface of earth?
As you zip through space in your PPS (personal propulsion suit), your pulse rate, as you count it, is 121 bpm, How fast are you moving with respect to the Moon
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