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Acceleration on the moon is g/6. If an astronaut hit a golf ball with a speed and launch angle that would result in a 120m horizontal range on earth, how far would it go?
a thin spherical shel has a radius of 1.9 m an applied torque of 960 Nm gives the shell an angular acceleration of 6.2 rad/s2, what is the rotational inertia of the shell about that axis and what the mass of the shell
An electric scooter has a battery capable of supplying 150 Wh of energy. what altitude change can a rider achieve when driving in hilly terrain
A 9.05 kg projectile is fired vertically upward. Air drag decreases the mechanical energy of the projectile-Earth system by 77.5 kJ throughout the projectile's ascent. How much higher would the projectile have gone were air drag negligible.
A satellite in a circular orbit around the earth with a radius 1.011 times the mean radius of the earth is hit by an incoming meteorite. Calculate the amount of that work converted to heat
The resistance of a very fine aluminum wire with a 20.0um* 20.0um square cross section is 1000 ohms. How many turns of wire are needed
An object is located 5 cm to the left of a concave mirror that has a radius of curvature if 20 cm. Calculate the image distance from the mirror
the peak power of a 6ft. diameter antenna is 10 watts and its duty cycle is 0.250. the wave length is 0.03mcycle.
Suppose you carry a bag of groceries weighing 151 N from your car to your kitchen, a distance of 38 m, without raising or lowering the bag. What is the work done by the force you exert on the bag
1. a 10.0 cm radius piston compresses a gas isothermally from a height of 15.0 cm to 2.50 cm at a constant pressure of
An intergalactic rock star bangs his drum every 1.70s. A person on earth measures that the time between beats is 2.5s. How fast is the rock star moving relative to earth.
An object is dropped from the top of a tower at a height of 44.1 m. How much time does the object take to reach the ground
A helicopter, starting from rest, accelerates straight up from the roof of a hospital. The lifting force does work in raising the helicopter. What is the average power generated by the lifting force
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