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After a golf ball is hit it takes off with an initial speed of 29.5 m/s and at an angle of 39.5° with respect to the horizontal. The golf field is flat and horizontal. Neglecting air resistance how far will the golf ball fly?
1. How far would the ball fly if the initial speed was doubled?
2. How much time would the ball spend in the air in this second case?
A light ray of ? = 430 nm enters at an angle of incidence of 36.2o from air into a block of plastic. Its angle of refraction is 21.7o. What is the speed of the light inside the plastic?
A gas, while expanding under isobaric conditions, does 500 J of work. The pressure of the gas is 1.6 105 Pa, and its initial volume is 1.60 10-3 m3
A doubly charged helium atom whose mass is 6.6 *10^-27 is accelerated by a voltage of 3000 V. What is its period of revolution
A person rides a bike 6.5 miles in 26 min up a mountain, climbing 1900 vertical feet. how much work did his muscles do
particals (mass of each =0.20kg) are placed at the 40-cm and100cm marks of a meter stick of negligible mass. what is the initail angular acceleration on the body
An electric fan is running on HIGH. After the LOW button ispressed, the angular speed of the fan decreases to 83.8 rad/s in1.75 s. Determine the intial angular speed of the fan
What is the highest possible induced emf in the antenna as it moves through the Earth's magnetic field.
a a wire 1 m long is perpendicular to a magnetic field of 0.01 t. what is the force on the wire when it carries a
A 10-kg block is set moving with an initial speed of 6 m/s on arough horizontal surface. how far does the block travel before it stops
A 1000 kilogram space probe is moving rightward in empty space along the x axis at 6 m/s. Calculate the final speed of the rocket at the end of the 1.5second
In order to gets a flat uniform cylindrical satellite spinning at the correct rate, engineer’s fire four tangential rockets as shown in the picture. If the satellite has a mass of 2000kg and a radius 3.0m what is the needed steady force of each rocke..
In a scientific test conducted in Arizona, a special cannon called HARP shot a projectile straight up to an altitude of 180.0 km. if the projectiles initial speed was 3.00 km/s, how long did it take the projectile to reach its maximum height?
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