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A golfer hits a shot to a green that is elevated 3.00 m above the point where the ball is struck. The ball leaves the club at a speed of 18.8 m/s at an angle of 50.0? above the horizontal. It rises to its maximum height and then falls down to the green. Ignoring air resistance, find the speed of the ball just before it lands.
federal statute requires that a car's bumper be designed to withstand a 2.50 mph (1.12m/s) collision with an immovable object without damage to the body of the car. Calculate the average force on a bumper
The resistance of a 100-cm wire of cross sectional area 2 × 10-6 m2 is 400 ?. What is the resistivity of the material of this wire
A thin spherical shell has a radius of 1.80 m. An applied torque of 1060 N m imparts to the shell an angular acceleration equal to 5.70 rad/s2 about an axis through the center of the shell
Suppose you have an electric hot water heater for your house which is an aluminum cylinder which has a 0.44 m radius and is 1.8 m high. The walls are 1.0 cm thick.
A skier starts from rest at the top of a hill that is inclined at 9.5° with respect to the horizontal. How far does the skier glide along the horizontal portion of the snow before coming to rest
A frictionless plane is 9.4 m long and inclined at 31.9. A sled starts at the bottom with an initial speed of 5.03 m/s up the incline. Find the initial speed of the second sled
At some location, earths magnetic field is B earth= 0.52 gauses and points north, at 55.0 degrees below horizontal line. find the magnitude of the magnetic force on a 25 m long segment of power line
Two small nonconducting spheres have a total charge of 93.1 ?C. When placed 1.01 m apart, the force each exerts on the other is 11.5 N and is attractive. What is the charge on each?
The radar system at an airport broadcasts 11 microwaves with 150 of power. An approaching airplane with a 31 cross section is 24 away. suppose that the radar broadcasts uniformly in all directions and that the airplane scatters microwaves uniformly..
Blood pressure is normally taken on the upper arm at the level of the heart, what would be the magnitude of the difference between this measurement of blood pressure and a normal blood pressure measurement
A pair of slits, separated by 0.170 mm, is illuminated by light having a wavelength of ? = 569 nm. What is the path difference for the two slits at the location y
A 1.67 m tall person lifts a 2.34 kg book from the ground so it is 2.22 m above the ground. Calculate the work done by the person
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