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A skateboarder shoots off a ramp with a velocity of 6.6m/s directed at an angle of 58 degrees above the horizontal. The end of the ramp is 1.2m above the ground. Let the x axis be parallel to the ground,+y direction be vertically upward, and take as the origin the point on the ground directly below the top of the ramp. (a) How high above the ground is the highest point that the skateboader reaches? (b) When the skateboarder reaches the highest point, how far is this point horizontally from the end of the ramp?
question1a 27 kg chair initially at rest on a horizontal floor requires a 377 n horizontal force to set it in motion.
A 23.00 kg chair initially at rest on a horizontal floor requires a 364N horizontal force to set it in motion. Once the chair is in motion, a 328N horizontal force keeps it moving at a constant velocity. A 23.00 kg chair initially at rest on a horizo..
Coulomb's Law gives us an expression for the electric field caused by a point charge with magnitude . Suppose we have several point charges. The electric field at a location is the vector sum of point charge contributions.
A cube is floating in a lake. IT is observed that 0.4 m of the cube is underwater with the remaining 0.1 m above. The density of water is 1000 kg/m^3. what is the magnitude of the foce that is exerted
A fire truck has a siren with that generates a sound with a frequency of 8562 Hz. what frequency will you observe
A string on a guitar vibrates at 420 Hz. If the tension on the string is 102 N, what is the mass of the string if the portion that vibrates is 63.7 cm long
Traveling at a speed of 18.9 m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. What is the speed of the automobile
The school bus picks up Brian in front of his house and takes him on a straight-line 3.6 km bus ride to school in the positive direction. He walks home after school. If the front of Brian's house is the origin.
A pitcher throws a 0.140-kg baseball, and it approaches the bat at a speed of 50m/s. The bat does Wnc = 70J of work on the ball in hitting it. Ignoring air resistance, determine the speed of the ball after the ball leaves the bat and is 25.0 m abo..
Find the electric field of a rod with length (L), total charge (Q), and distance (r) from the center of the rod along the axis of the rod when r > L/2
suppose that the springs have somehow not yet compressed to their maximum amount. How much are the springs compressed.
Suppose 3.0 moles of a monatomic gas are maintained at a constant volume. By how much does the temperature increase if 800.0 J of heat is put into the gas
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