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coming back to your room one night, you see your roommate balancing an apple on top of their head. the apple sits motionless.One of the forces on the apple is the gravitational force the earth exerts on the apple. what is the corresponding Newtons third law interaction pair force?
A proton, q=1.60 x 10^19C moves 10.0 cm on a path parallel to the direction of a uniform electric field of strength 3.0 N/C What is the change in electric potential energy
A satellite travels at about 8000m/s. What is the factor γ for this speed? As observed from the ground, by how much would a clock traveling at this speed differ from a ground based clock after one hour (as measured by the latter)? What is the percent..
A 3 m long rigid beam with a mass of 115 kg is supported at each end. An 60 kg student stands 2 m from support 1. How much upward force does each support exert on the beam.
A bullet is fired horizontally from a 70 m tall building with a speed of 1100 m ? s. Calculate the vertical component of its velocity
Using a 673-nm wavelength laser, you form the diffraction pattern of a 0.109-mm wide slit on a screen. How far is the screen located from the slit
The image behind a convex mirror (radius of curvature = 74 cm) is located 22 cm behind the mirror. What is the magnification of the mirror?
Forensic scientists can measure the muzzle velocity of a gun by firing a bullet horizontally into a large hanging block that absorbs the bullet and swings upward. What was the original speed of this bullet
If the index of refractions of the red light is 1.4925, what is the index of refraction of the blue light?
A sound wave in air has a frequency of 264Hz and travels with a speed of 347m/s. How far apart are the wave crests
When your friend is riding a 6.50-kg bicycle, the weight is supported more on the back tire and less on the front tire. what is your friend's weight
What is an acceleration of two falling sky divers (mass 120.0 kg including parachute) while the upward force of air resistance is equal to one-fourth of their weight.
A technician wraps wire around a tube of length 37 cm having a diameter of 8.2 cm. what is the self-induced emf in the solenoid
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