Author Question: A spear is thrown at you at a very high speed. As it passes, you measure its length as one-half its ... (Read 157 times)

strangeaffliction · **on:** Jul 27, 2018

A spear is thrown at you at a very high speed. As it passes, you measure its length as one-half its normal length. From this measurement, you conclude that the moving spear's mass must be

A) one-half its rest mass.
B) twice its rest mass.
C) four times its rest mass.
D) zero.

Question 2

A series RC circuit has resistance of 150 and capacitance of 40. F. It is driven by a 120. V, 60. Hz source.

(a) How much power is dissipated in the resistor?
(b) How much power is dissipated in the capacitor?

jsm54321 · **Reply #1 on:** Jul 27, 2018

Answer to Question 1

B

Answer to Question 2

(a) 96 W
(b) zero

strangeaffliction · **Reply #2 on:** Jul 27, 2018

Both answers were spot on, thank you once again

jsm54321 · **Reply #3 on:** Jul 27, 2018

Great! Please up vote

Author Question: A spear is thrown at you at a very high speed. As it passes, you measure its length as one-half its ... (Read 157 times)

strangeaffliction

A spear is thrown at you at a very high speed. As it passes, you measure its length as one-half its ...

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jsm54321

A spear is thrown at you at a very high speed. As it passes, you measure its length as one-half its ...

strangeaffliction

A spear is thrown at you at a very high speed. As it passes, you measure its length as one-half its ...

jsm54321

A spear is thrown at you at a very high speed. As it passes, you measure its length as one-half its ...