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The drawing shows a skateboarder moving at v = 5 m/s along a horizontal section of a track that is slanted upward by 48° above the horizontal at its end, which is h = 0.52 m above the ground. When she leaves the track, she follows the characteristic path of projectile motion. Ignoring friction and air resistance, find the maximum height H to which she rises above the end of the track.
A 3 kg block moving at 4 m/s makes a head-on elastic collision with a stationary block of mass 2 kg. Use coservation of momentum and the fact that the relative speed of recession equals the relative speed of approach to find the velocity of each bloc..
What is the speed of the electron when it strikes the target? How far does it fall under the influence of gravity during its flight?
Calculate the speed of a proton that is accelerated from rest through an electric potential difference of138V. Calculate the speed of an electron that is accelerated through the same potential difference.
a resistor ofnbsp368nbspnbspis connected in series with a capacitor ofnbsp50.0nbspmicrof capacitance.a. a sinusoidal
A volume of 2000 cm^3 of carbon dioxide gas at normal pressure and 20 C is compressed isothermally into a 2 cm^3 container, what is the final pressure inside the container
Three dogs are pulling on a blanket in different directions. The English shepherd is pulling north with a force of 40 N. in what direction is the boxer pulling
Suppose you have an electric hot water heater for your house which is an aluminum cylinder which has a 0.6 m radius and is 1.2 m high. The walls are 1.0 cm thick.
A person rides in an elevator that is shot upward out of a cannon. Think of the elevator after it leaves the cannon and is moving freely in the gravitational field of Earth. Neglect air resistance
A large optical telescope with an aperture of diameter 2.6 m is used to study the Moon. What is the size of the smallest feature on the Moon
According to the Bohr model, a hydrogen atom in its lowest energy state has a nucleus consisting of a single proton, What is the magnitude of the "current" flowing around the nucleus
What is the maximum value of the electric field in an electromagnetic wave whose average intensity is 3.75W/m^2 ?
A light bulb is connected to a 240-V wall socket. The current in the bulb depends on the time t according to the relation I = (2.828 A) sin[(345.4 Hz)t]. What is the average power delivered to the light bulb
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