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

Author Question: Alex throws a 0.15-kg rubber ball down onto the floor. The ball's speed just before impact is 6.5 ... (Read 160 times)

jjjetplane

  • Hero Member
  • *****
  • Posts: 556
on: Jul 28, 2018
Alex throws a 0.15-kg rubber ball down onto the floor. The ball's speed just before impact is 6.5 m/s and just after is 3.5 m/s. If the ball is in contact with the floor for 0.050 s, what is the magnitude of the average force applied by the floor on the ball?
 a. 60 N
  c. 30 N
  b. 133 N
  d. 3.5 N

Question 2

A proton initially moves left to right long the x axis at a speed of 2.00  103 m/s. It moves into an electric field, which points in the negative x direction, and travels a distance of 0.300 m before coming to rest. If the proton's mass and charge are 1.67  10-27 kg and 1.60  10-19 C, respectively, what is the magnitude of the electric field?
 a. 13.9 N/C
  c. 28.3 N/C
  b. 0.0696 N/C
  d. 0.104 N/C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

gstein359

  • Sr. Member
  • ****
  • Posts: 293
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

B


jjjetplane

  • Hero Member
  • *****
  • Posts: 556
Reply #2 on: Jul 28, 2018
TY


gstein359

  • Sr. Member
  • ****
  • Posts: 293
Reply #3 on: Jul 28, 2018
You're welcome


« previous next »
 

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

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.

Did you know?

The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.

Flexible cooling fan blades change shape as the engine speed changes. Flexible cooling fan blades change shape as the engine speed changes.
Inside ankle press. Place the heel of your left hand on the ball of the recipient’s right foot, ... Inside ankle press. Place the heel of your left hand on the ball of the recipient’s right foot, ...
The Russians planted a flag on the sea floor beneath the North Pole The Russians planted a flag on the sea floor beneath the North Pole
The Impact of Cross-Ethnic Friendships on Minority Students’ Well-Being The Impact of Cross-Ethnic Friendships on Minority Students’ Well-Being
If the particle moves in a circle of radius 0.15 m at a speed of 3.0 m/s, what is the magnitude ... If the particle moves in a circle of radius 0.15 m at a speed of 3.0 m/s, what is the magnitude ...
A spaceship leaves Earth at a steady forward speed of 70% the speed of light. How fast relative ... A spaceship leaves Earth at a steady forward speed of 70% the speed of light. How fast relative ...
Video: Graded potentials - electrical characteristics and types

For a complete list of videos, visit our video library