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1. A marble rolls with a velocity of 10 mm/s [E] on a game board that is being pulled [60o N of E] at 40.0 mm/s. What is the velocity of the marble relative to the floor?
2. An airplane flies with a velocity of 55.0 m/s [ 35o N of W] with respect to the air (this is known as air speed). If the velocity of the airplane according to an observer on the ground is 40.0 m/s [53o N of W], what was the wind velocity?
3. If you were trying to cross a river with the shortest possible time, would you aim your boat slightly upstream, directly across the river, or slightly downstream? Explain.
A small object begins a free-fall from a height of H = 86.0 m at t0 = 0 s. At what height from the ground will the two objects first meet
A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r, how fast is the roller coaster traveling at the bottom of the dip
A weight lifter lifts a 360-N set of weights from ground level to a position over his head, a vertical distance of 2.05 m. How much work does the weight lifter do
A 60-kg student traveling in a car with a constant velocity has a kinetic energy of 1.2 X 104 J. What is the speedometer reading of the car
One can not align the apparatus to eliminate entirely the effects of the Earth's magnetic field. calculate the component of the earth magnetic field perpendicular to the entering electron beam
A 2.0 kg ball is thrown towards a wall with a speed of 6.0 m/s the ball hits the wall and rebounds backwards with a speed of 4.0 ms what's magnitude
Suppose that a plane is traveling with a horizontal velocity of vx = +238 m/s at an altitude of y = 1053 m. determine the time required for the package to hit the ground
A 0.500 kg ball falls directly down onto concrete, hitting it with a speed of 12.5 m/s and rebounding directly upward with a speed of 3.00 m/s. Extend a y axis upward
Four identical metallic objects carry the following charges: +1.68, +6.03, -4.64, and -9.66C. How many electrons (or protons) make up the final charge on each object
A circular loop of radius 0.10 m is rotating in a uniform magnetic field of 0.20 T. Discover the magnetic flux during the loop when the plane of the loop and the magnetic field vector are at an angle of 30 degrees?
A solid marble, a solid disk and a hoop have the same mass (M = 0.9 kg) and the same radius. Each object is held at rest at the same height and then released. what is the force the track exerts on the hoop
the radius of the earth is 6380 km and turns once on its axis in 24 hours. what is the radial acceleration if the
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