A Hooke's law spring is compressed a distance d and is used to launch a mass m vertically to a height h above its starting position. Under double the compression, the spring is now used to launch the mass. How high does the mass now rise above its starting position?
a. 2h
c. 3h
b. 1.41h
d. 4h
D
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If the plate area, plate separation, dielectric strength, and dielectric constant all are doubled for a parallel plate capacitor, what happens to the maximum voltage for this capacitor?
A. it stays the same B. it doubles C. it quadruples D. it halves E. it quarters
Energy Conservation With Conservative Forces: What is the minimum energy needed to lift a 1.0-kg rocket to a height of 200 km and to give it a speed of 8.0 km/s at that height? (Neglect air resistance and the small decrease in g over that distance.)
A. 34 TJ B. 34 kJ C. 34 MJ D. 34 GJ E. 34 J
Nonmagnetic metals in municipal waste are separated with ___________.
Fill in the blank(s) with the appropriate word(s).
Sedimentary rocks are formed from sediments that are deposited
What will be an ideal response?