Author Question: A 20-mF capacitor is attached across a 1000-V power supply. What is the net charge on the capacitor? ... (Read 133 times)

londonang

  • Hero Member
  • *****
  • Posts: 540
A 20-mF capacitor is attached across a 1000-V power supply. What is the net charge on the capacitor?
 a. 20 mC
  c. 10 mC
  b. 40 mC
  d. none of these choices

Question 2

An 80-kg man is one fourth of the way up a 10-m ladder that is resting against a smooth, frictionless wall. If the ladder has a mass of 30 kg and it makes an angle of 60 with the ground, find the force of friction of the ground on the foot of the ladder.
 a. 7.8  102 N
  c. 50 N
  b. 2.0  102 N
  d. 1.7  102 N



Moriaki

  • Sr. Member
  • ****
  • Posts: 341
Answer to Question 1

D

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

For a complete list of videos, visit our video library