State the conservation of angular momentum
What will be an ideal response?
In the absence of an external, unbalanced torque, the total (vector) angular momentum of a system is conserved (remains constant).
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What do we mean by uniform linear motion?
Assume a device is designed to obtain a large potential difference by first charging a bank of capacitors connected in parallel and then activating a switch arrangement that in effect disconnects the capacitors from the charging source and from each other and reconnects them all in a series arrangement. The group of charged capacitors is then discharged in series. What is the maximum potential
difference that can be obtained in this manner by using ten 500-µF capacitors and an 800-V charging source? 1.500 V 2.8.00 kV 3.400 kV 4.800 V 5.0
Ideal Gas Law: A certain automobile tire has a volume of 0.0185 m3. If the absolute (or total) pressure in the tire is 500 kPa and the temperature is 298 K, how many molecules are there inside the tire? (R = 8.31 J/mol ? K, NA = 6.022 × 1023 molecules/mol)
A. 2.25 × 1023 molecules B. 2.25 × 1024 molecules C. 3.25 × 1023 molecules D. 3.25 × 1024 molecules E. 3.25 × 1025 molecules
For general projectile motion, when the projectile is at the highest point of its trajectory
A) its acceleration is zero. B) its velocity is perpendicular to the acceleration. C) its velocity and acceleration are both zero. D) the horizontal component of its velocity is zero. E) the horizontal and vertical components of its velocity are zero.