When a rigid body rotates about a fixed axis all the points in the body have the same angular acceleration
Indicate whether the statement is true or false
TRUE
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Assume that the brightness of an ohmic light bulb with resistance R is directly proportional to the power it dissipates. If we connect it to the plates of a charged capacitor with capacitance C at time t = 0, by what factor is it dimmer at time t = 2RC than its initial brightness?
A. 1/2 B. 1/4 C. 1/2e D. 1/e2 E. 1/e4 F. Some other factor (specify)
If we had sent a radio signal to an advanced civilization in 2006 which is located in the zeta reticuli star system approximately 39 light-years away and the signal was immediately replied to, when would the reply arrive back at Earth?
A) 2084 B) 2012 C) 2045 D) 2039
Before it arrived in orbit about Eros, the NEAR spacecraft visited
A) the asteroid Gaspra. B) the Moon. C) Mars. D) the asteroid Mathilde. E) Venus.
A pilot drops a package from a plane flying horizontally at a constant speed. Neglecting effects of air, when the package hits the ground the horizontal location of the plane will
A) be behind the package. B) be directly over the package. C) be in front of the package. D) depend on the speed of the plane when the package was released.