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The 1994 Winter Olympics included the aerials competition in skiing. In this event skiers speed down a ramp that slopes sharply upward at the end. The sharp upward slope launches them into the air, where they perform gymnastic manoeuvres. In the women's competition, the end of a typical launch ramp is directed 65°above the horizontal. With this launch angle, a skier attains a height of 10 m above the end of the ramp. What is the skier's launch speed?
You need a transformer that will draw 16 W of power from a 220 V (rms) power line, stepping the voltage down to 12 V (rms) What will be the current in the secondary coil? Express your answer to two significant figures and include the appropriate un..
on a distant planet golf is just as popular as it is on earth. a golfer tees off and drives the ball 4.7 times as far
a car traveling at 35m/s runs out of gas while traveling up a 9.0? slope. How far will it coast before starting to roll back down
A circuit consists of two 475-k%u03A9 resistors in series with an ideal 12.0-V battery. Calculate the potential drop across one of the resistors
A perfectly insulated system has work done by it at a rate of 13 W. At what rate is the internal energy of the system changing?
What is the speed of the block of clay right after the collision. What impulse does the clay exert on the block.
Initially at rest, a small copper sphere with a mass of 2.77·10^-6 kg, What is the radius of curvature of the sphere's motion in the magnetic field
Illustrate what constant acceleration does Mary now need during the remaining portion of the race, if she wishes to cross the finish line side-by-side with Sally?
A person with a remote montain cabin plansto install her own hydroelectric plant. A nearby stream is 3.00mwide and 0.500m deep. Find the power she can generate
an elevator cabin mass 530 kg is designed for a maximum load of 3300 kg and to reach a velocity of 3.5 ms in 3 s. for
A projectile is fired from the ground (you can assume the initial height is the same as the ground) in a field so there are no obstacles in its way. What is the maximum height that the projectile reaches
An object is 7.94 cm from the surface of a reflective spherical Christmas-tree ornament 7.8 cm in diameter. What is the position of the image
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