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A rifle is aimed horizonatally at a target 50 m away. The bullet hits the target 2.0cm below the aim point. What was the bullets flight time? what was the bullets speed as it left the barrel? (go through each step, I'm trying really hard to understand this!)
Find out the magnitude of the vertical component of the velocity
A 251 kg wooden raft floats on a lake. When a 70kg man stands on the raft, it sinks 4cm deeper into the water. When he steps off, the raft vibrates for a while.
Insects do not have lungs as we do, nor do they breathe through their mouths. Instead, they have a system of tiny tubes, called tracheae, find the oxygen concentration at the interior end of the tube
The electron beam inside a television picture tube is 0.300mm in diameter and carries a current of 50.0 ?A. What is the current density in the electron beam
A solid metal ball of radius 1.6 cm is located near a hollow plastic ball of radius 2.1 cm, What is the electric field at the center of the metal ball due just to the charges on its surface
The spring constant for the tendon is the same for both groups, 32 {rm {N}/{mm}} . What is the difference in maximum stored energy between sprinters and nonathletes.
A particle attached to a spring with k 50 N/m is undergoing simple harmonic motion, and its position is described by the equation x (5.7 m)cos(7.5t), with t measured in seconds.
A heavy piece of hanging sculpture is suspended by a 146.0 cm long, 8.03 gm wire. When the wind blows hard, wire hums at its fundamental frequency of 113.0 Hz. What is the mass of the sculpture (in kg) assume that the local acceleration due to gravit..
The Hubble Space Telescope orbits the Earth at an altitude of approximately 612 km. Its mass is 11,100 kg, What is the Hubble's total energy
The wind exerts a force of 325N north on a sailboat, while the water exerts a force of 425 N west on the sailboat. Find out the magnitude and direction of the net force on sailboat.
A 1 Kg mass on a 37 degree incline is connected to a 3 kg mass on a horizontal surface. The coefficient of kinetic friction between all surfaces is 0.10 and the pulley is frictionless and applied force is F=12N.
what is the bee's speed at once afterward.
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