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

Author Question: A 12.6-V battery supplies a 2.0-A current for 2.0 minutes. What is the work done by the battery ... (Read 101 times)

Diane

  • Hero Member
  • *****
  • Posts: 576
A 12.6-V battery supplies a 2.0-A current for 2.0 minutes. What is the work done by the battery during this process?
 a. 0 J
  c. 2.5  102 J
  b. 3.0  103 J
  d. 1.5  104 J

Question 2

A baseball pitcher loosens up his pitching arm. He tosses a 0.15-kg ball using only the rotation of his forearm, 0.32 m in length, to accelerate the ball. If the ball starts at rest and is released with a speed of 24 m/s in a time of 0.40 s, what torque is applied to the ball while being held by the pitcher's hand to produce the angular acceleration?
 a. 1.1 Nm
  c. 2.9 Nm
  b. 11 Nm
  d. 1.4 Nm



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Sierray

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

B

Answer to Question 2

C




Sierray

  • Sr. Member
  • ****
  • Posts: 343

 

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

For a complete list of videos, visit our video library