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Suppose each red ball weighs 20 lbs. Find the potential energy (PE) for each ball on each ramp. In this lab mass is given in pounds and height is in feet, so use 32.2 ft/sec2 as the gravitational constant. Your answer will be in foot-pounds since US units are being used. PE = m g h where g = 32.2 ft/sec2
A boy standing on top of a building throws a small ball from a height of H1 = 24.2 m. calculate for how long the ball is in the air
Donald Duck and his nephews manage to sink Uncle Scrooge's yacht (m = 4735 kg), which is made of steel (? = 7810 kg/m3). What is the buoyant force on one ping-pong ball in water
from a fixed point a surveyor locates a pole at 215.6 ft due east and a bulding corner at 358.2 ft at 37.72 degrees
a 70 ohms resistor a .1100 h inductor and a 14.0 microfarad capacitor are connected in series to a 60.0 hz source. the
A diver springs upward with an initial speed of 1.7 m/s from a 3.0-mboard. Find the velocity with which he strikes the water.
You are riding in an elevator on the way to the eighteenth floor of your dormitory. what magnitude of force must you apply
A proton moves perpendicularly to a uniform magnetic ?eld B with a speed of 1.9 × 10 ^7 m/s and experiences an acceleration of 8 × 10 12 m/s 2 in the positive x direction when its velocity is in the positive z direction. The mass of a proton is 1...
The radius of a typical human eardrum is about 4.0 mm. Find the energy per second received by an eardrum when it listens to sound that is at the threshold of hearing. Find the energy per second received by an eardrum when it listens to sound that is..
The large piston in a hydraulic lift has a radius of 250 cm2. Obtain what force must be applied to the small piston with a radius of 25 cm in order to raise a car of mass 1500 kilogram
Two polarizers are out of alignment by 30°. If light of intensity 7.57 W/m2 and initially polarized halfway between the polarizing angles of the two filters passes through the two filters, what is the intensity of the transmitted light?
A thin glass (n = 1.47)converging lens for which the radii of curvatureare R1 = 15.0 cmand R2 = -13 cm. Determine the area of this image
carbon monoxide is a gas at 0 degc and a pressure of 1.06 times 105 pa. it is a diatomic gas each of its molecules
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