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Question: A ball is thrown is thrown directly downward with an initial speed of 8.00 m/s from a height of 30.0 m.
Question 1: After what time interval does it strike the ground?
Please show all intermediate steps and formulas used for above question.
a man with mass m1 61 kg stands at the left end of a uniform boat with mass m2 168 kg and a length l 2.6 m. let the
A photographer uses his camera, whose lens has a 50 mm focal length, to focus on an object 3.5m away. How far must the lens move to focus on this second object
A 12.5-kg block of ice has a temperature of -18.4 °C. The pressure is one atmosphere. The block absorbs 7.62 x 106J of heat. What is the final temperature in degrees Celsius of the liquid water?
About 50000 years ago, a meteor crashed into the earth near present-day Flagstaff, Arizona. How much kinetic energy did this meteor deliver to the ground
A circular plastic rod of radius R = 1.20 m has a positive charge = Q = 3.00×10-6 C uniformly distributed along one-quarter of its circumference and a negative charge of -4Q uniformly distributed along the rest of the circumference (see the figure..
Unpolarized light passes through two polaroid sheets. What fraction of the initial light is transmitted
3.09 moles of neon, a monatomic gas, starts out at conditions of standard temperature and pressure. The gas is heated at constant volume until its pressure is tripled, then further heated at constant pressure until its volume is doubled. Assume that ..
A non conducting solid sphere of radius 2.30 cm carries a uniformly distributed positive charge of 8.30 x 10-9 C. Calculate the magnitude of the electric field at a point 1.30 cm away from the center of the sphere
An elevator cable winds on a drum of radius 80.0 cm that is connected to a motor. If the elevator moves down8.0m, how many revolutions has the drum made
What is the dissimilarity in the weight of a 108 kg person as gauged at sea level and at the top of the Vinson Massif, the highest peak in Antarctica? The product GMEarth=3.99x1014 N.m2.kg-1, the radius of the Earth is 6.38x 106 m, and the height abo..
A 0.45 caliber bullet (m = 10.7 g) is fired into a large block of wood (M = 0.750 kg) so that the bullet becomes lodged in the block. What is the speed of the block after the collision
The membrane of the axon of a nerve cell is a thin cylindrical shell of radius r = 10-5 m, length L = 0.14 m, and thickness d = 10-8 m. Find the electric field through the membrane
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