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

Author Question: If a car accelerates at a uniform 4.0 m/s2, how long will it take to reach a speed of 80 km/hr, ... (Read 49 times)

CQXA

  • Hero Member
  • *****
  • Posts: 546
on: Jul 29, 2018
If a car accelerates at a uniform 4.0 m/s2, how long will it take to reach a speed of 80 km/hr, starting from rest?
 
  What will be an ideal response?

Question 2

Water, of density 1000 kg/m3, is flowing in a drainage channel of rectangular cross-section. The width of the channel is 15 m, the depth of the water is 8.0 m and the speed of the flow is 2.5 m/s. At what rate is water flowing in this channel?
 
  A) 2.0  105 kg/s
  B) 2.0  103 kg/s
  C) 3.0  105 kg/s
  D) 3.0  103 kg/s
  E) 3.0  102 kg/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

smrtceo

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 29, 2018
Answer to Question 1

5.6 s

Answer to Question 2

C


CQXA

  • Member
  • Posts: 546
Reply 2 on: Jul 29, 2018
Wow, this really help

recede

  • Member
  • Posts: 315
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

The U.S. Long-Term Ecological Research (LTER) network. The U.S. Long-Term Ecological Research (LTER) network.
A cutaway of a typical water pump showing the long bearing assembly and the seal. The weep hole is ... A cutaway of a typical water pump showing the long bearing assembly and the seal. The weep hole is ...
Apply long effleurage stroke to entire arm, from hand to shoulder. Brush off from shoulder to hand. ... Apply long effleurage stroke to entire arm, from hand to shoulder. Brush off from shoulder to hand. ...
Rapid, long-distance signaling in plants Rapid, long-distance signaling in plants
A 4.0-kg block slides down a 35 incline at a constant speed when a 16-N force is applied acting ... A 4.0-kg block slides down a 35 incline at a constant speed when a 16-N force is applied acting ...
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: Role of the respiratory system - effect of altered ventilation rates

For a complete list of videos, visit our video library