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
skelet666 [1.2K]
3 years ago
10

What is the function of brushes ​

Physics
1 answer:
Svetllana [295]3 years ago
4 0

Answer:

A brush is a device which conducts current between stationary wires and moving parts, most commonly in a rotating shaft.

You might be interested in
You are planning a trip to the beach 250 miles away. How long will it take if you think you can average 55 miles per hour?
Advocard [28]

Answer: that’s a good question

Explanation:

.

3 0
4 years ago
Car's mass is 950kg. It's driven at 100km/h. How big is the kinetic energy?
polet [3.4K]

Answer:

4750000 J

Explanation:

Kinetic Energy= 1/2* mass* velocity²

1/2*950*100²=4750000

8 0
3 years ago
A student throws a set of keys vertically upward to his fraternity brother, who is in a window 3.60 m above. The brother's outst
Contact [7]

Answer:

v_{i}=10.10 m/s

Explanation:

The equation of the position is:

y=y_{i}+v_{i}t-0.5gt^{2}

Where:

v(i) is the initial velocity

The initial position y(i) will be zero and the final position y = 3.60 m.

So, we just need to solve this equation for v(i).

v_{i}=\frac{y+0.5gt^{2}}{t}

v_{i}=\frac{3.6+0.5*9.81*1.6^{2}}{1.6}

v_{i}=10.10 m/s

Therefore, the initial velocity is 10.10 m/s upwards.

I hope it helps you!

5 0
3 years ago
The distance versus time graph for Object A and Object B are shown.
barxatty [35]
Object B but not objective A
8 0
3 years ago
Read 2 more answers
If a person uses about 4 calories to fuel a minute of walking, and it takes about 20 minutes to walk a mile, approximately how m
Lemur [1.5K]

Answer:

43.75 miles must a person walk to utilize the energy in (“burn”) a pound of fat.

Explanation:

3,500 calories are present in 1 pound of the fat.

Thus, given that:

<u>4 calories are burnt in 1 minute of walking.</u>

So,

1 calories are burnt in 1/4 minute of walking.

Or,

<u>1 calories are burnt in 0.25 minute of walking.</u>

Thus,

<u>3500 calories are burnt in 0.25*3500 minutes of walking</u>

Minutes of walking needed to burn 3500 calories = 875 minutes.

Also, given that:

<u>20 minutes of walking covers 1 mile.</u>

<u>1 minute of walking covers 1/20 mile.</u>

So,

<u>875 minutes of walking covers (1/20)*875 mile.</u>

<u>43.75 miles must a person walk to utilize the energy in (“burn”) a pound of fat.</u>

6 0
3 years ago
Other questions:
  • Which set of equipment would be most useful to determine the density of a liquid?
    9·1 answer
  • Please help!!! Essay question.....<br><br> Which properties of light define light as a wave?
    6·2 answers
  • Fidle if you give me food i will live if you give me watter i will die what im i
    6·1 answer
  • Please help me will give BRAILIEST!!!!!
    8·1 answer
  • Which statement does Einstein's theory promote about space and time?
    6·2 answers
  • 3. A toy rocket launcher contains a spring with a spring constant of 35 N/m. If the
    10·1 answer
  • The speed of the cart after 8 seconds of Low fan speed is
    13·1 answer
  • Cause and Effect: How do changes in temperature affect air? Pls hurry I’m being timed
    8·2 answers
  • Which property of potential energy distinguishes it from kinetic energy
    13·1 answer
  • Does red or green light have more energy.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!