This topic contains a solution. Click here to go to the answer

Author Question: An astronaut at rest has a heart rate of 65 beats/min. What will her heart rate be as measured by an ... (Read 59 times)

xclash

  • Hero Member
  • *****
  • Posts: 681
An astronaut at rest has a heart rate of 65 beats/min. What will her heart rate be as measured by an earth observer when the astronaut's spaceship goes by the earth at a speed of 0.80c?
 a. 108 beats/min
  c. 81 beats/min
  b. 39 beats/min
  d. 52 beats/min

Question 2

A ground observer measures the period of a pendulum moving as a part of an inertial frame of reference to be 2.30 s as the inertial frame moves by at a velocity of 0.800c. What would the observed period be of the same pendulum if its inertial frame were at rest with respect to the observer?
 a. 3.03 s
  c. 1.84 s
  b. 1.38 s
  d. 4.25 s



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

macmac

  • Sr. Member
  • ****
  • Posts: 343
Answer to Question 1

B

Answer to Question 2

B




xclash

  • Member
  • Posts: 681
Reply 2 on: Jul 28, 2018
:D TYSM


shewald78

  • Member
  • Posts: 340
Reply 3 on: Yesterday
Excellent

 

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

For a complete list of videos, visit our video library