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In the process of changing a flat tire, a motorist uses a hydraulic jack. She begins by applying a force of 59 N to the input piston, which has a radius r1. As a result, the output plunger, which has a radius r2, applies a force to the car. The ratio r2/r1 has a value of 9.0. Ignore the height difference between the input piston and output plunger and determine the force that the output plunger applies to the car.
Discuss Waves, Sound, and Light. What is a Wave?
It can be shown that asin(theta) + bcos(theta), where ab is not = 0, is a circle. Find the center (in Cartesian Coordinates) and the radius of the circle in terms of a and b
Andy, age 16, lacks self-discipline, fails to plan ahead, and is rapidly frustrated by challenging tasks. He is nervous and overly critical of others. Make use of the psychoanalytic, humanistic and social-cognitive perspectives to give three contr..
A hydrogen atom has an angular momentum of 1.055x10^-34 kg.m^2/s. According to the Bohr model, what is the energy (eV) associated with this state
The Sun radiates energy at a rate of about 4×1026W. At what rate is the Sun's mass decreasing
A 3.00 kg box is moving to the right with speed 10.0m/s on a horizontal, frictionless surface. At t= 0 a horizontal force is applied to the box. what distance does the box move from its position at t=0 before its speed is reduced to zero
A 180kg hoop rolls along a horizontal floor so that the hoop's center of mass has a speed of 0.130m/s. How much work must be completed on the hoop to stop it.
A bowling ball of mass 7.10kg and radius 9.20cm rolls without slipping down a lane at 3.64m/s. Calculate its total kinetic energy
A proton, initially traveling in the +x-direction with a speed of 5.75*10^5m/s, enters a uniform electric field directed vertically upward. What is the strength of the electric field
A 1000 kg sports car of mass accelerates from rest to 20 m/s in 6.6 s. what is the force exerted by the road on the car
A bat moving with a speed of 4.10 m/s and emitting sound of 31.0 kHz approaches a moth at rest on a tree trunk. What frequency is heard by the moth
A long pair of wires conducts 28.10 A of dc current to, and from, an instrument. If insulated wires are of negligible diameter but are 2.8 mm apart, what is the magnetic field d = 11.2 cm from their midpoint, in their plane.
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