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A 1.05 g samara (the winged fruit of a maple tree), falls toward the ground with a constant speed of 1.1 m/s.
a) what is the force of the air resistance exerted on the samara?
b) if the constant speed of the descent os greater than 1.1m/s,is the force of the air resistance greater than, less than or thesame as in part A? Explain.
A 140 g air-track glider is attached to a spring. The glider is pushed in 12.00 cm and released. A student with a stopwatch finds that 9 oscillations take 10.0 s.
The pressure of an ideal gas remains at 200 Pa while 1000 joules of heat are removed and its internal energy increases by 2000 joules. What was the change in the volume of the gas
Illustrate what is the general rule for recognizing property taxes as revenue? Explain how are property taxes accounted for differently in the governmental fund statements as opposed to the government wide statements?
A car is driving directly north on the freeway at a speed of 117 km/h and a truck is leaving the freeway driving 76 km/h in a direction that is 40° west of north. What is the velocity of the truck relative to the car?
A uniform shaft, fixed at one end & free at other, is twisted so that each cross - section rotates through an angle proportional to the distance from the fixed end. If the shaft is released from rest in this position, determine the s
At the position of the negative charge, what is the magnitude of the electric field due to the three positive charges? What is the magnitude of the attractive force on the negative charge
A ball of mass 7 kg is thrown straight up in the earth's gravitational field with an initial speed v0 = 16 m/s. What is the initial kinetic energy of the ball
A diatomic molecule is excited to its first rotational energy level, corresponding to J = 1. what is the angular speed of the molecule about its center of mass
A cannonball, mass 50 kg, is shot out of cannon at an angle of 75 degrees with respect to the horizontal. The initial speed is 10 m/s. the ball lands at the same height from which it began.
If the bullet buries itself in the block, find out how far along the ground that the block lands from the base of the table.
A 20.4 dog is running northward at 2.85 , while a 5.33 cat is running eastward at 3.67. Find the magnitude of the owner's velocity
The proper length of one spaceship is three times that of another. The two spaceships are traveling in the same direction and, while both are passing overhead, an Earth observer measures the two spaceships to have the same length. If the slower space..
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