In general, the surfaces of the planets will be ________ than the age of the solar system
Fill in the blank(s) with correct word
younger
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What gives the most direct view into the Sun's core?
What will be an ideal response?
A 2.5-kg object falls vertically downward in a viscous medium at a constant speed of 2.5 m/s. How much work is done by the force the viscous medium exerts on the object as it falls 80 cm?
a. +2.0 J b. +20 J c. ?2.0 J d. ?20 J e. +40 J
If a negative charge is placed inside a hollow isolated conductor that is originally neutral and the charge does not touch that conductor at any time:
a. both the inner and outer surfaces will become negative. b. both the inner and outer surfaces will remain neutral. c. the outside surface of the conductor will become positively charged. d. the inside surface of the conductor will become positively charged.
A body at the end of a spring oscillates up and down ten times in five seconds. The period of oscillation is 2 s
Indicate whether the statement is true or false