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A car starts from rest and then accelerates uniformly to a linear speed of 14 m/s in 38 s. If the tires have a radius of 28 cm, what are the following?
(a) the average linear acceleration of a tire
_______ m/s2
(b) the angular acceleration of a tire
______ rad/s2
(c) the angular displacement of a tire from t = 0 to t = 38 s
_____ rad
(d) the total distance traveled by a point on the edge of a tire (Ignore the linear motion.)
______ m
As observed on earth, a certain type of bacterium is known to double in number every 6 hours. how many bacteria are in the culture on the rocket, according to an earth-based observer
Saturn has an equatorial radius of 6.00 107 m and a mass of 5.67 1026 kg. Compute the acceleration of gravity at the equator of Saturn
If random samples, each with n = 36 scores, are selected from a normal population with µ = 80 and ? = 18, how much difference, on average, should there be between a sample mean and the population mean?
The combined mass of the professor and the chair is 90-kg. He is pushed 2.60-m along the incline by a group of students who together exert a constant horizontal force of 600-N. The professor speed at the bottom of the ramp is 1.75m/s. use the work..
After 12.6 s, a spinning roulette wheel has slowed down to an angular velocity of 2.82 rad/s. Determine the angular displacement of the wheel
A ball of mass 0.65 kg is fired with velocity 120 m/s into the barrel of a spring gun of mass 2.4 kg initially at rest on a frictionless surface. What fraction of the ball's initial kinetic energy is stored in the spring
guess the force between a proton and an electron at the Bohr radius of 0.5Å (1 Å=10-10 m). The magnitude of the charge of an electron, as well as a proton, is 1.6·10-19 C.
A cube of ice is taken from the freezer at -7.2 ?C and placed in a 115g aluminum calorimeter filled with 318g of water at room temperature of 20.0 ? C. What was the mass of the ice cube
A stone is thrown vertically downward from a cliff 184.0-m tall. During the last half second of its flight, Find the initial speed of the stone
A plane drops a hamper of medical supplies from a height of 5460 m during a practice run over the ocean. What is the magnitude of the overall velocity of the hamper
A well-insulated container of negligible heat capacity contains 150g of ice at 0 degrees. If 20g of steam is injected into the container, what is the final equilibrium temperature of the system
The starter motor of a car engine draws a current of 160A from the battery. How much charge passes through the starter motor
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