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An arrow is shot vertically upward and then 2.02 s later passes the top of a tree 41.3 m high. How much longer will the arrow travel upward, and how high will it go?
time _______
height ____________
A star of radius 9.1 × 10^5 km rotates about its axis with a period of 49 days. Estimate the period of the neutron star
a race car driver must average 199.0 kmh over the course of a time trial lasting ten laps. if the first nine laps were
A puck is sliding without friction on the ice at a speed of 2.48 m/s. Find the speed and direction of the second puck after the collision
A vacuum diode consists of a cylindrical cathode of radius 0.05cm, mounted coaxially within a cylindrical anode 0.45 cm in radius. Find its speed when it strikes the anode
One generator uses a magnetic field of 0.190 T and has a coil area per turn of 0.0425 m2. What magnetic field should be used in the second generator
How does the force on the layer compare with gravitational force on the layer if the layer has a radius of 100 solar radii, and a mass of .1 solar mass and the rest of the star has a mass of 1 solar mass
A long solenoid lying along the x-axis, as shown, has a 0.2 T field inside its coils. What is the magnitude of the magnetic force on the particle
Take element Z = 21 from the periodic table. Ionize it 20 times so that there is only one electron left orbiting around the nucleus. What is the ground state energy of the electron
A sinusoidal electromagnetic wave emitted by a cellular phone has a wavelength of 35.4 cm and electric field amplitude of 5.40 x 10-2 V/m at a distance of 250 m from the phone. Calculate the magnetic field amplitude
A 150 g aluminum cup contains 150 g of water and both are at 13 C. If you add 150 g of hot water at 90 C what is the final temperature at thermal equilibrium? How much hot water at 90 C needs to be added to achieve a final temperature of 44 C?
The current in a 100 watt lightbulb is 0.740 A. The filament inside the bulb is .230 mm in diameter
How does the thermal velocity scale with the size of the molecule diffusing. determine the scaling law based on the resulting equation
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