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Q. The press box at a baseball park is 32 ft above the ground. A reporter in press box looks at an angle of 18 degrees below the horizontal to see second base.
What is the horizontal distance from the press box to second base?
Q. A 110kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 350N. For the first 15.00 m the floor is frictionless and for next 15 m the coefficient of friction is 0.30. What is the final speed of the crate?
An owl is chasing a squirrel and is using echolocation (the reflection of sound) to aid in the hunt. If the squirrel is 40.5 m from the owl, how long does it take sound to travel from the owl to the squirrel and then back to the owl? (Use 343m/s a..
Find the magnitude of the acceleration for an electron in a uniform electric field with a magnitude of 122 N/C.
When his mom asked him why he is smoking he told her, "Don't worry mom, it is not that bad after all." Which term is being described in Trent's situation.
Determine the position of the GPS satellite relative to and from the center of the earth and ratio of clock rates on a GPS clock in orbit and one on the surface of the earth.
Calculating magnetic flux, induced current & magnetic field.
Find out the relative rates at which clocks go at two different distances r1 and r2 from the center of the earth.
An airplane has a mass of 2.6 x10^6 kg, and the air flows past the lower surface of the wings at 95m/s. If the wings have a surface area of 1200m2, how fast should the air flow over the upper surface of the wing if the plane is to stay in the air?..
Two cars are traveling along a straight road. Car A maintains a constant velocity of 110 km/h and car B maintains a constant speed of 110 km/h. At t= 0, car B is 45 km behind car A. How far would car A travel from t = 0, before it is overtaken by c..
find the angle counterclockwise relative to the horizontal.
A somewhat longer cable replaces the old and is attached to the steel bar 5 m from its upper end, connecting to the same place on the wall as before and maintaining the same angle between the bar and the wall.
A flat uniform circular disk (radius = 2.40 m, mass = 1.00 x 10^2 kg) is initially stationary. The disk is free to rotate in the horizontal plane about a frictionless axis perpendicular to the center of the disk. A 45.0 kg person, standing 0.95 m fro..
what is the total amount of work done by friction. The supplies should be dropped how various seconds before the plane is directly overhead.
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