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A skateboarder shoots off a ramp with a velocity of 6.4 m/s, directed at an angle of 62° above the horizontal. The end of the ramp is 1.1 m above the ground. Let the x axis be parallel to the ground, the +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 skateboarder reaches?
(b) When the skateboarder reaches the highest point, how far is this point horizontally from the end of the ramp?
How much energy is dissipated during the 5 minute interval.
Monochromatic light with wavelength 580nm passes through a single slit 2.40 um wide and 1.70m from a screen.
A compressed-air cylinder is known to fail if the pressue exceeds 100 atm. A cylinder that was filled to 20 atm at 22°C is stored in a warehouse. Unfortunately, the warehouse catches fire and the temperature reaches 900°C. What is the pressure ins..
An RL series circuit has R= 78.0? and L= 2.00mH. The series combination is connected across a 165V(rms), 65Hz power supply. Find the impedance of the RLcombination
A ball rolls off a table with a horizontal velocity of 5 m/s If it takes 0.6 secs for it to reach the floor A. What is the verticle componet of the balls velocity just before it hits the floor? (use g= 10 m/s^2) B. What is the horizontal componet ..
If the accelerating plates are 1.60 apart, and have a potential difference of 2.60×10^4, what is the magnitude of the uniform electric field between them.
a space station is a hollow cylinder of radius of 440m, that rotates to stimulate gravity by its centripetal acceleration. find the period of the rotation in seconds
A gun shoots small plastic balls. The ball falls 1.2 m while traveling horizontally 5.1 m. Calculate the speed the ball leaves the gun
A 0.36-kg object connected to a light spring with a force constant of 24.4 N/m oscillates on a frictionless horizontal surface. Determine the maximum speed of the object
We can roughly model a gymnastic tumbler as a uniform solid cylinder of mass 72.0kg and diameter 1.20m. What percent of his total kinetic energy is rotational
If you connect these 3 resistors in series across a variable emf source of negligible internal resistance, what is the largest potential difference this emf source can be set to without damaging any of resistors.
A 30.0-kg block is resting on a flat horizontal table. On top of this block is resting a 15.0-kg block, to which a horizontal spring is attached. determine the amount by which the spring is compressed
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