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

Author Question: If a 9.0-V battery, with negligible internal resistance, and an 27-W resistor are connected in ... (Read 138 times)

Haya94

  • Hero Member
  • *****
  • Posts: 558
on: Jul 28, 2018
If a 9.0-V battery, with negligible internal resistance, and an 27-W resistor are connected in series, what is the amount of electrical energy transformed to heat per coulomb of charge that flows through the circuit?
 a. 0.50 J
  c. 3.0 J
  b. 9.0 J
  d. 72 J

Question 2

A solid sphere of mass 2.5 kg and radius 0.12 m is at rest at the top of a ramp inclined 15. It rolls to the bottom without slipping. The upper end of the ramp is 1.2 m higher than the lower end. Find the sphere's total kinetic energy when it reaches the bottom.
 a. 70 J
  c. 29 J
  b. 47 J
  d. 8.8 J


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tdewitt

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

C


Haya94

  • Member
  • Posts: 558
Reply 2 on: Jul 28, 2018
Excellent

amandalm

  • Member
  • Posts: 306
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

The breast, cutaway view showing both internal and external features. The breast, cutaway view showing both internal and external features.
Sagittal section of upper respiratory system illustrating the internal anatomy of the nasal cavity, Sagittal section of upper respiratory system illustrating the internal anatomy of the nasal cavity,
Some ignition coils are electrically connected, called married (top figure), whereas others use ... Some ignition coils are electrically connected, called married (top figure), whereas others use ...
A typical air vane sensor with the cover removed. The movable arm contacts a carbon resistance path ... A typical air vane sensor with the cover removed. The movable arm contacts a carbon resistance path ...
Internal female reproductive tract. Internal female reproductive tract.
A reverse-biased silicon diode is connected in series with a 12 V source and a resistor.The ... A reverse-biased silicon diode is connected in series with a 12 V source and a resistor.The ...
Video: Inflammation Animation

For a complete list of videos, visit our video library