A rolling wheel of diameter of 68 cm slows down uniformly from 8.4 m/s to rest over a distance of 115 m. What is the magnitude of its angular acceleration if there was no slipping?
A) 1.8 rad/s2
B) 0.90 rad/s2
C) 5.7 rad/s2
D) 11 rad/s2
B
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______________, lava, and pyroclastics are the three general products emitted during a volcanic eruption
Fill in the blank(s) with correct word
An collision occurs between object X and object Z. Object X has twice the mass of object Z. Which of the following quantities is NOT the same for the two objects?
A. Magnitude of change in momentum B. Magnitude of force felt by each C. Time of collision D. Magnitude of change in velocity
What is the Asteroid belt?
A. a line of craters on the Moon caused by an asteroidal impact about 50 million years ago B. the place in the Solar System where most of the asteroids are found C. a line of craters on Earth caused by an asteroidal impact about 50 million years ago D. a term used to describe the impact of a very large asteroid with a planet E. None of these choices is correct.
A U-tube is open to the atmosphere at both ends. Water is poured into the tube until the water column on the vertical sides of the U is more than 10 cm deep
Then, oil with a density of 950 kg/m3 is poured into one side, until the column of oil is 6.0 cm tall. How much higher is the top surface of the oil on that side of the tube compared with the surface of the water on the other side of the tube? A) 3.1 cm B) 2.9 cm C) 60 mm D) 3.0 mm E) 5.7 cm