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A metal object is suspended from a spring scale. The scale reads 920 N when the object is suspended in air and 750 N when the object is completely submerged in water.
1. Discover the volume of the object.
2. Discover the density of the metal.
A 52.2 kg pole-vaulter fallsfrom rest from a height of 4.8 m onto a foam-rubber pad. Calculate the athlete's velocity just before reaching the pad
During launch from a diving board, a diver's angular velocity abouther center of mass cahnges from 0 to 5.40 rad/s in 180m/s. determine the total number of degrees she rotates
A student m = 79 kg runs at a velocity vi = 2.2 m/s before jumping on a skateboard. After jumping on the board the student has a velocity vf = 1.69 m/s. What is mass of skateboard
question a square wire 2.0 cm on each side is oriented so that 5.00 mt magnetic field makes a 30 degree angle with the
Unpolarized light passes through two polaroid sheets. What fraction of the initial light is transmitted
Bill is farsighted and has a near point located 110 cm from his eyes. what is the closest object that can be seen clearly by Anne when she wears Bill's glasses
a 0.63 kg ball thrown directly upward with an initial speed of 13.7 ms reaches a maximum height of 8.1 m. what is the
q1. a school yard teeter totter with a total length of 6.0 m and a mass of 36 kg is pivoted at its center. a 19 kg
Two charges charges of -2.1 micro-coulombs and a charge of +2.1 micro-coulombs are placed on the corners of an equilateral triangle where the length of a side is 44 cm as shown in the sketch below. What is the magnitude of the total electric field..
A capacitor consists of two closely spaced metal conductors of large area, separated by a thin insulating foil. Calculate the amount of energy stored in the capacitor
A certain light bulb has a tungsten filament with a resistance of 19 ohms when at 20 degrees celsius and 140 ohms when hot. Find the temperature of the hot filament
In a summer day is the outside temperature is 100oF, what will be the temperature in centigrade scale (oC) and on the Kelvin scale
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