« previous next »

Author Question: A speed boat requires 80 kW to move at a constant speed of 12 m/s. What is the resistive force of ... (Read 128 times)

RRMR

  • Hero Member
  • *****
  • Posts: 557
on: Jul 28, 2018
A speed boat requires 80 kW to move at a constant speed of 12 m/s. What is the resistive force of the water at this speed?
 a. 2700 N
  c. 6700 N
  b. 5300 N
  d. 7700 N

Question 2

If the size of the charge value is tripled for one of two point charges maintained at a constant separation, the mutual force between them will be changed by what factor?
 a. 3.0
  c. 9.0
  b. 1/9
  d. 0.33


Hikerman221

  • Sr. Member
  • ****
  • Posts: 346
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

An alternating pneumatic compression device squeezes the leg tissues causing blood to move toward th An alternating pneumatic compression device squeezes the leg tissues causing blood to move toward th
The Speed of Light Is Constant The Speed of Light Is Constant
A rubber mallet used to deliver a force to an object without harming the surface. A rubber mallet used to deliver a force to an object without harming the surface.
Pressure gradient force Pressure gradient force
Coriolis force Coriolis force
For a particular process that is carried out at constant pressure, q = 145 kJ and w = -35 kJ. ... For a particular process that is carried out at constant pressure, q = 145 kJ and w = -35 kJ. ...
Video: baroreceptors

For a complete list of videos, visit our video library