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

Author Question: How much work is required to increase the velocity of a 4 kg car from rest to 5 m/sec? a. 10 b. 20 ... (Read 67 times)

@Brianna17

  • Hero Member
  • *****
  • Posts: 550
on: Jul 28, 2018
How much work is required to increase the velocity of a 4 kg car from rest to 5 m/sec?
 a. 10 b. 20 c. 50 d. 100 e. 200 Joules

Question 2

A car travels in a flat circle of radius R. At a certain instant the velocity of the car is 20 m/s north, and the total acceleration of the car is 2.5 m/s2 37 south of west. Which of the following is correct?
 a. R = 0.40 km, and the car's speed is decreasing.
  b. R = 0.20 km, and the car's speed is decreasing.
  c. R = 0.20 km, and the car's speed is increasing.
  d. R = 0.16 km, and the car's speed is increasing.
  e. R = 0.16 km, and the car's speed is decreasing.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Chou

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 28, 2018
Answer to Question 1

c

Answer to Question 2

B


@Brianna17

  • Member
  • Posts: 550
Reply 2 on: Jul 28, 2018
Excellent

zacnyjessica

  • Member
  • Posts: 345
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

An obstetrician at work An obstetrician at work
A poster encourages women to work in munitions to support the war effort. A poster encourages women to work in munitions to support the war effort.
Using a step stool to work on the spine Using a step stool to work on the spine
Men and women work the same number of hours a week, but men spend more time on paid work, and women ... Men and women work the same number of hours a week, but men spend more time on paid work, and women ...
How much heat energy in Joules is required to heat 16.0 g of copper from 23.0 °C How much heat energy in Joules is required to heat 16.0 g of copper from 23.0 °C
What is the maximum velocity (in km/s) of a photoelectron emitted from a surface whose work ... What is the maximum velocity (in km/s) of a photoelectron emitted from a surface whose work ...
Video: Male Reproductive System - Testosterone

For a complete list of videos, visit our video library