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
Shtirlitz [24]
3 years ago
5

Power can be defined as?

Physics
1 answer:
Tasya [4]3 years ago
7 0
B. How much work can be done in a given time. That’s why it’s measured occasionally I. “Horsepower.” It’s your ability to work fast and far.
You might be interested in
How long (in seconds) does it take a car accelerating at 3.1 m/s2 to go from rest<br> to 51 m/s?
Nesterboy [21]

Answer:

 t  = 16.5s

Explanation:

Given parameters:

Acceleration = 3.1m/s²

Initial velocity  = 0m/s

Final velocity  = 51m/s

Unknown:

Time taken  = ?

Solution:

To solve this problem we need to reiterate that acceleration is the rate of change of velocity with time.

So;

        Acceleration  = \frac{v  - u }{t}  

v is the final velocity

u is the initial velocity

t is the time taken

  So;

       3.1  = \frac{51 - 0}{t}  

    3.1t  = 51

       t  = 16.5s

8 0
3 years ago
A train 471 m long is moving on a straight track with a speed of 75.1 km/h. The engineer applies the brakes at a crossing, and l
hram777 [196]

Answer:

t = 37.6 s

Explanation:

As we know that train is initially moving with the speed

v_i = 75.1 km/h

now we know that

v_i = 20.86 m/s

now the final speed of the train when it crossed the crossing

v_f = 15 km/h

v_f = 4.17 m/s

now we can use kinematics here

v_f^2 - v_i^2 = 2 a d

4.17^2 - 20.86^2 = 2 a(471)

a = -0.44 m/s^2

Now the time to cross that junction is given as

v_f - v_i = at

4.17 - 20.86 = a(-0.44)

t = 37.6 s

4 0
3 years ago
What does strong gravity mean?<br> PLZZZZZ HELP MEEEEEE
grigory [225]
<span>The force of attraction by which terrestrial bodies tend to fall toward the center of the earth strongly. If i'm wrong, correct me. otherwise i hope this helped.</span>
7 0
3 years ago
Read 2 more answers
What quantity is represented by a unit called a newton (N)?
zavuch27 [327]

\textsf {C. Force}

\textsf {The quantity which is represented by a unit called Newton (N)}\\\textsf {is Force.}

5 0
2 years ago
10. As a spaceship is moving toward Earth, an Earthling measures its length to be 325 m, while the captain on board radios that
Oliga [24]

Answer:

Explanation:

10. As a spaceship is moving toward Earth, an Earthling measures its length to be 325 m, while the captain on board radios that her spaceship's length is 1150 m. (c = 3.00 × 108 m/s) (a) How fast is the rocket moving relative to Earth? (b) What is the TOTAL energy of a 75.0-kg crewman as measured by (i) the captain in the rocket and (ii) the Earthling?

3 0
2 years ago
Other questions:
  • Arwan finds a piece of quartz while hiking in the mountains. When he returns to school, he takes it to his science teacher. She
    7·2 answers
  • A planet similar to the Earth has a radius 7.4 × 106 m and has an acceleration of gravity of 10 m/s 2 on the planet’s surface. T
    7·1 answer
  • The following questions present a twist on the scenario above to test your understanding. Suppose another stone is thrown horizo
    10·1 answer
  • Given that average speed is distance traveled divided by time, determine the values of m and n when the time it takes a beam of
    11·1 answer
  • Plz help plz give u brainlist<br>state principal of pin hole camera??<br>​
    13·1 answer
  • The forces exerted by earth and a skier become an action reaction force pair when the skier accelerates while earth doesnt seem
    15·1 answer
  • You are looking at the image of a pencil in a mirror. What do you see in the mirror if the top half of the mirror is covered wit
    10·1 answer
  • Carl is eating lunch at his favorite cafe when his friend Isaac calls and says he wants to meet him. Isaac is calling from a cit
    9·1 answer
  • How come we can see orange? In simple words.
    14·1 answer
  • A closed loop conductor that forms a circle with a radius of 2.0 m is located in a uniform but changing magnetic field. If the m
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!