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A 12-gram bullet is fired at 1600 m/sinto the wooden block of a ballistic pendulum, causing it to swingback, raising up 1.40 meters vertically. Find the mass of the block.
Two parallel planar mirrors face each other. An object is placed between them at a distance x from one and 3x from the other. how far away are the second-order images from the object, in terms of x
q1. a 2.19 kg block initially at rest is pulled to the right along a horizontal surface by a constant horizontal force
A 747 airliner reaches its takeoff speed of 187 mi/h in 31.4s. What is the magnitude of its average acceleration.
A small plastic sphere with a charge of - 5.0 nC is near another small plastic sphere with a charge of - 12 nC. what is the distance between the spheres
A baseball pitcher throws a baseball horizontally at a linearspeed of 42.5 m/s. What is the tangential speed of a point on the "equator" of thebaseball
An airplane accelerates down a runway at 3.20 m/s2 for 32.8 s until is finally lifts off the ground. Determine the distance traveled before takeoff
The occupant of a small vechical hears a frequency of 1.5x10^3 Hz emitted from a stationary space buoy, What is the speed of sound on the planet
A cylinder 5 m high with a 2m diameter is filled with water at 20 degrees C at 101 kPa is placed on the ground (circle side down). It is then drained form the bottom. What is the entropy generation in this process? Note: this is a transient process, ..
In astronomy, distances are often expressed in light-years. One light-year is the distance traveled by light in one year
The first controlled, sustained flight in a heavier-than-air craft was made by Orville Wright on December 17, 1903. The plane took off at the end of a rail that was 60 feet long, and landed 12 seconds later, 180 feet away from the beginning of the..
Calculate the force of gravity on a spacecraft 25600 km (4 earth radii) above the Earth's surface if its mass is 1500 kg
An underwater scuba diver sees the Sun at an apparent angle of 26? from the vertical. What is the Sun's angle of inclination
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