1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lelu [443]
3 years ago
7

HELP DUE TONIGHT What is friction? How does friction affect the motion of an object?

Physics
1 answer:
hram777 [196]3 years ago
3 0

Answer:

Friction always acts in the direction opposing motion. This means if friction is present, it counteracts and cancels some of the force causing the motion (if the object is being accelerated).

Explanation:

Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other.

You might be interested in
Fill in the blank. Charges added to a(n) _____ will immediately spread throughout the body.
aalyn [17]
Charges added to a CONDUCTOR will immediately spread throughout the body.
3 0
2 years ago
A Carnot heat engine has an efficiency of 0.400. If it operates between a deep lake with a constant temperature of 298.0k and a
tatuchka [14]

Answer:

496.7 K

Explanation:

The efficiency of a Carnot engine is given by the equation:

\eta = 1 - \frac{T_H}{T_L}

where:

T_H is the temperature of the hot reservoir

T_C is the temperature of the cold reservoir

For the engine in the problem, we know that

\eta = 0.400 is the efficiency

T_C = 298.0 K is the temperature of the cold reservoir

Solving for T_H, we find:

\frac{T_C}{T_H}=1-\eta\\T_H = \frac{T_C}{1-\eta} =\frac{298.0}{1-0.400}=496.7 K

6 0
3 years ago
Determine the mechanical energy of this object: a 2-kg pendulum has a speed of 1 m/s at a height of 1/2 meter.
Anuta_ua [19.1K]
The answer is B 10.8 j 
3 0
3 years ago
Read 2 more answers
A scientist studies how sunlight affects a person's skin. Which statement is a
zhannawk [14.2K]

Answer:

If you spend more time in the sun, your skin will become drier.

a p e x

3 0
3 years ago
Which is not true of friction? A. Causes wear and tear of the surfaces B. Helps us to fall easily on roads C. Produces heat D. P
Ganezh [65]

Answer:

B.

Hope this helps

5 0
2 years ago
Read 2 more answers
Other questions:
  • Two dimensional motion is motion in :
    5·1 answer
  • 3. An automobile accelerates 1.77 m/sover 6.00 s to reach the freeway speed at
    9·1 answer
  • A man weighing 490N on earth weighs 81.7N on the moon.His mass on the moon is kg
    15·2 answers
  • What is the product of mass and velocity of an object?
    5·2 answers
  • Explain how you know that gasoline burning in a car engine is a chemical change.?
    7·2 answers
  • PLLLLLLLLLLLLLLLLZ HELP
    8·1 answer
  • Doing work alawyas means blank energy​
    11·1 answer
  • Chuyển động thẳng đều là gì
    7·1 answer
  • Nitrogen oxides in car exhaust react with sunlight to produce
    8·1 answer
  • The occupants of a vehicle not wearing a seat belt, traveling at a speed of 50 mph and colliding head-on with another vehicle, w
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!