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Q1. A plane moves 589m northeast along a runway. If the northern component of this displacement is 89m, how large is the eastern component?
Q2. A 180kg hoop rolls along a horizontal floor so that the hoop's center of mass has a speed of 0.130m/s. How much work must be completed on the hoop to stop it?
What distance does baseball move before its release
A rifle with a barrel length of 56 cm fires a 14 g bullet with a horizontal speed of 350 m/s/s. The bullet strikes a block of wood and penetrates to a depth of 13 cm.
What are magnitude and direction of the force
The flywheel of an engine has a moment of inertia 2.80 {rm kg} cdot {rm m} ^ {2} about its rotation axis. What is its final kinetic energy.
Find out the magnitude and direction of forces
A 44.20 cm diameter disk rotates with a constant angular acceleration of 2.84 rad/s2. It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3° with the positive x-axis at t..
Calculate the verage speed and time lead by the runner using the definition of average speed.
Two rigid rods are oriented parallel to each other and to the ground. The rods carry the same current in the same direction. The length of each rod is 0.90m, and the mass of each is 0.078 kg. One rod is held in place above the ground, while other flo..
W hat least energy an incident alpha particle must have to penetrate the gold nucleus. What is the direction of the carbon atom after the collision.
A skier starts from rest at the top of a hill that is inclined at 12.0° with the horizontal. The hillside is 180.0 m long, and the coefficient of friction between the snow and the skis is 0.0750. At the bottom of the hill, the snow is level and the c..
You are driving home from school steadily at 94 km/h for 150 km. It then begins to rain and you slow to 63 km/h. You arrive home after driving 3 hours and 30 minutes. How far your hometown from school and what is was your average speed.
An airtight box has a removable lid of area 1.00 10-2 m2 and negligible weight. The box is taken up a mountain where the air pressure outside the box is 7.00 104 Pa. The inside of the box is completely displaced. What is the magnitude of the force es..
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