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A skydiver of mass m, jumps from an aircraft at an altitude of hmetres, with an initial speed of 0 m/s. She opens her parachute andlands with a final speed of v m/s. Which expression is equal to the energy dissipated by air resistance during the jump?
Monochromatic light of wavelength 692 nm is incident on a narrow slit. On a screen 2.81 m away, Calculate the angle of diffraction of the second minimum
q1. a thin layer of magnesium fluoride n 1.38 is used to coat a flint-glass lens n 1.61. what minimum thickness must
A 15 kg brick rests on a roof that is at an angle of 40º to the horizontal. What is the component of the force into the surface of the roof
Two identical diverging lenses are separated by 18 cm. The focal length of each lens is -8.0 cm. Determine the final image distance relative to the lens on the right
Mary runs off a diving board with a velocity of 1.7 m/s in the horizontal direction. If the water surface is 2 meters below the board: A. how long will it take for her to hit the water B. where will she hit the water C. With what velocity will she..
In an ice show a 45.0 kg skater leaps into the air and is caught by an initially stationary 85.0kg skater. What is their final velocity assuming negligible friction and that the leaper's original horizontal velocity was 4.00 m/s
Two particles of masses M1 = 93000 kg and M2 = 4200 kg are initially at rest an a distance 148.1 km apart. The masses are let go, and as a result of the gravitational force the two masses move towards each other.
Two resistors, 80.0 and 64.0 , are connected in parallel. The current through the second resistor is 4.30 A, What is the total power supplied to the two resistors
The index of refraction of crown glass for violet light is 1.528, while for red light it is 1.514. What is the speed of violet light in crown glass
If an automobile rounds this curve at 30 {rm m/s}, illustrate what is the minimum coefficient of static friction between tires and road needed to prevent skidding?
A molecule is represented by a charge -2q at the origin and charges +q at b1 and b2, where | b1 | = | b2 | = b, Find dipole moment of the molecule
A violin string vibrates at 264 Hz when unfingered. At what frequency will it vibrate if it is fingered one fourth of the way down from the end
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