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Solve the all parts of given question:
Question: A 140-g baseball is dropped from a tree 13.0m above the ground.
Part I: With what speed would it hit the ground if air resistance could be ignored?
Part II: If it actually hits the ground with a speed of 8.50m/s, what is the magnitude of the average force of air resistance exerted on it?
I need help to find the magnitude of the average force of air resistance exerted on it.
Calculating plants maximum possible thermal and actual efficiency.
A circular coil of wire with 10 turns and a 4.0 cm radius is located between the poles of a large electromagnet that produces a uniform magnetic field of 0.5T. Calculate the average induced emg across the ends of the loop
You throw a 20-N rock vertically into the air from ground level. You observe that when it is a height 14.6 m above the ground, Use the work-energy theorem to find its speed just as it left the ground
One afternoon, you are playing on a wooden basketball court with a hula-hoop to amuse yourself. find the hoop's speed just before it hits the wall
The Horseshoe Falls on the Niagara River is about 50 meter high and 800 meter wide. Find what volume of water goes over the falls each second
When a 9.80 kg mass is placed on top of a vertical spring, the spring compresses 4.00 cm. What would the compression of the spring (in cm) be if the spring-mass system was placed
A muon particle ( q=-e, m=207me) is traveling at a speed v=4.2*10^7 m/s, What is the radius of its path in the magnetic field
Consider the NaCl molecule, for which the moment of inertia is 1.30 x 10-45 kg·m2. what are the allowed Raman-scattered wavelengths
A charge of 38 μC is distributed evenly over a sheet of area 3.3m2 positioned on the y-z plane. Calculate the charge density on the sheet
A 0.31 MeV x-ray photon collides by an electron and scatters straight back the way that it came. What is the kinetic energy of the scattered electron? What is the energy of the backscattered photon? Suppose that it was initially at rest.
A 100-turn, 5.00 cm-diameter coil is at rest in a horizontal plane. A uniform magnetic field 60° away from vertical increases from 0.5 T to 2.50 T in 0.9 seconds, What is the induced emf in the coil
A laser beam is traveling through an unknown substance. When it encounters a boundary with air, the angle of reflection is 23.0° and the angle of refraction is 40.0°. What is the speed of light in the substance
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