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You have landed on an unknown planet, Newtonia, and want to know what objects will weigh there. You find that when a certain tool is pushed on a frictionless horizontal surface by a 12.6 force, it moves 16.5 in the first 2.00 , starting from rest. You next observe that if you release this tool from rest at 10.1 above the ground, it takes 2.78 to reach the ground. What would it weigh on earth?
A sound wave of frequency 171 Hz has an intensity of 3.29 ?W/m2. What is the amplitude of the air oscillations caused by this wave
Two astronauts are 1.40 m apart in their spaceship. One speaks to the other. The conversation is transmitted to earth via electromagnetic waves. How far away from the earth is the spaceship
A muon is produced by a collision between a cosmic ray and an oxygen nucleus in the upper atmosphere at an altitude of 50 km, What is the velocity of a muon at the surface
the next two questions refire to the following scenario. Determine the horizontal velocity of the arrow
What is the maximum reaction time. A 1.52 wide, 1.50 high, 1500 car hits a very slick patch of ice while going 21.0 .If friction is neglected, how long will it take until the car's speed drops to 14.
Two waves traveling on a string in the same direction both have a frequency of 141 Hz, a wavelength of .43 m, and an amplitude of .16 m. What is the phase difference between the two waves
A plucked guitar string produces a sound wave of frequency 440 Hz. What is the wavelength of the sound wave
A scaffold of mass 43 kg and length 6.5 m is supported in a horizontal position by a vertical cable at each end. What is the tension in the nearer cable
In a 45° - 90° - 45° prism with a ray of light entering and exiting on the long side of the prism after undergoing two total internal reflections. Determine the minimum index of refraction of the prism in order for this to occur
Find out the force each hand exerts on the shaft when the shaft is rotating in the horizontal plane about its center at 5×10-2 {rm rev/s}.
During 6 successive intervals a runner moves at the following constant speeds: .326 km/min for 30 seconds, .123 km/min for 23 seconds, Compute the average speed of the runner
A steel wire is used to stretch a spring. An oscillating magnetic field drives the steel wire back and forth. what stretch of the spring produces a standing wave with six nodes
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