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Q. A hydraulic lift consists of two pistons that connect to each other by an incompressible fluid. If one piston has an area of 0.49 m^2 and the other an area of 6.2 m^2, how large a mass can be raised by a force of 220 N exerted on the smaller piston?
Q. Explain why covalent bonds are formed when nonmetals from the right side of the periodic table bond with each other. Give two examples of such compounds.
A force vector has a magnitude of 569 newtons and points at an angle 41o of below the positive x axis. What is (a) x scalar component and (b) y scalar component of the vector.
A shopper pushes a cart 39 m south down one aisle and then turns 90.0° west and moves 27 m. He then makes another 90.0° turn and moves 14 m.
A 1560kg car is travelling with a speed of 14.20 m/s. What is the magnitude of the horizontal net force that is required to bring car to a halt in a distance of 52.10 m.
Two projectiles are thrown with the same initial speed, one at an angle with respect to the level ground and the other at angle 90 degree. Both projectiles strike the ground at the equivalent distance from the projection point. Are both projectiles i..
A toy cork gun contains a spring whose spring constant is 10.02 N/m. The spring is compressed 5.0 cm and then used to propel a 6.00 g cork. The cork, however, sticks to the spring for 1 cm beyond its unstretched length before separation occurs. The m..
Determine magnitude of the force from the ground on each front wheel. what is magnitude of the duck's velocity.
You shoot an arrow into the air. Two seconds later arrow has gone straight upward to a height of 30 meters above its launch point. a) What was the arrow's initial speed? b) How long did it take for the arrow to first reach a height of 15 meters ab..
A basketball player grabbing a rebound jumps 73.3 cm vertically. How much total time (ascent and descent) does the player spend (a) in the top 13.1 cm of this jump and (b) in the bottom 13.1 cm? Do your results explain why such players seem to han..
A plane leaves the airport in Galisto and flies 165 at 68.0 east of north and then changes direction to fly 230 at 48.0 south of east, after which it makes an immediate emergency landing in a pasture.
Find the speed of the car when brakes were applied.
Define the velocity and the potential energy of an object briefly.
Which color has the highest index of refraction
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