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A well-engineered ski jump is less dangerous than it looks because skiers hit the ground with very small velocity components perpendicular to the ground. Skiers leave the Olympic ski jump in Lake Placid, New York, at 30 m/s at an angle of 9.5 degrees below the horizontal. Their landing zone is a horizontal distance of 55 m from the end of the jump. The ground at that point is contoured so skiers' trajectories make an angle of only 3.0 degrees with the ground on landing,
What is the slope of the ground in the landing zone?
question1two bicycle tires are set rolling with the same initial speed of 4.00ms along a long straight road and
A projectile is fired from the surface of the Earth with a speed of 200 meters per second at an angle of 30 degress above the horizantal. If the ground is level, illustrate what is the maximum height reached by the projectile?
An object fired at an angle of 35.0(degrees) above the horizontal takes 1.87s to travel the last 11.4m of its vertical distance, With what velocity was the object launched
A 1 kg ball is attached to a 2 m long piece of very light string and suspended in such a way that it can freely swing and it passes just above the ground. completely describe the motion of the two masses after the 1 kg ball is released
Consider a parallel-plate capacitor with an area of 1.1 cm2, At what voltage will this capacitor exhibit dielectric breakdown
A 3.00-kg block starts from rest at the top of a 35.5° incline and slides 2.00 m down the incline in 1.50 s, Find the frictional force acting on the block
Kelli weighs 417 N, and she is sitting on a playground swing that hangs 0.44 m above the ground. Her mom pulls the swing back and releases it when the seat is 1.00 m above the ground. Imagine that air resistance is negligible.
An astronomical telescope uses an objective power of +1.280 D. If the length of the telescope is 80.000 cm, what are power of the eyepiece
If the radius of the Earth is 6380km and its mass is 5.98X10^24 , determine the actual average density of the Earth
Tritium with a half-life of 12.3 years is used to verify the age of expensive brandies. how many years ago was it produced
An airplane flies eastward and accelerates uniformly. At one position along its path it has a velocity of 28.9 m/s. Find the airplane\'s acceleration
Two concentric conducting spherical shells produce a radially outward electric field of magnitude 49,000 N/C at a point 4.10 m from the center of the shells. find the amount of charge on the outer surface of the larger shell
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