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Q1. To decide freefall acceleration on a moon with no atmosphere, you drop the handkerchief off the roof of a baseball stadium there. The roof is 123 meters tall. The handkerchief reaches the ground in 14.2 seconds. What is freefall acceleration on this moon?
Q2. A gun shoots bullets that leave the muzzle with a speed of 336 m/s. If a bullet is to hit a target 136 m away at the level of the muzzle, the gun has to be aimed at a point above the target. How far above the target is this point?
Write down an equation for the radial component
An object is 17 mm in front of a converging lens, and the image is 3 mm behind the lens. What is the focal length of the lens? Reply In mm
What is the gravitational energy of stone-Earth System
What is the speed of the center of mass
A hot wheels track has a spring loaded launcher. A 100g car is pushed into the launcher, which compresses the spring by 2cm. The cars initial velocity after launching is 3m/s.
Coefficient of kinetic friction between tires and road
Recognize and sketch all the external forces acting on the chair. Because the chair can be represented as a point particle of mass, draw the forces with their tails centered on the black dot in the middle of chair. Be certain to draw the forces so th..
What is the smallest distance required to stop the plane
If you connect these 3 resistors in series across a variable emf source of negligible internal resistance, what is the largest potential difference this emf source can be set to without damaging any of resistors.
Find the magnitude of total displacement of the object
Compute the semi major axis of the star orbit
Write down the original position of the system
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