This topic contains a solution. Click here to go to the answer
« previous next »

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 131 times)

strangeaffliction

  • Hero Member
  • *****
  • Posts: 660
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?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jsm54321

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

(a) 96 W
(b) zero


strangeaffliction

  • Hero Member
  • *****
  • Posts: 660
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


jsm54321

  • Sr. Member
  • ****
  • Posts: 328
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

An adult male giraffe feeding high up on an acacia An adult male giraffe feeding high up on an acacia
Under what conditions can part-time employment in high school be a negative influence on school ... Under what conditions can part-time employment in high school be a negative influence on school ...
The high-voltage shut-off switch on a Ford Escape hybrid. The switch is located under the carpet at ... The high-voltage shut-off switch on a Ford Escape hybrid. The switch is located under the carpet at ...
This mini clamp-on DMM is being used to measure the amount of battery electrical drain that is ... This mini clamp-on DMM is being used to measure the amount of battery electrical drain that is ...
Ten Leading Causes of Death in High-Income Countries, 2008 Ten Leading Causes of Death in High-Income Countries, 2008
High stress, by household type (age-standardized), age 18+, Canada, 1994-1995 High stress, by household type (age-standardized), age 18+, Canada, 1994-1995
Video: Effect of blood chemistry - stimuli, hyperventilation response and hypoventilation response

For a complete list of videos, visit our video library