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
Nostrana [21]
3 years ago
10

How much power is used by car when it applies 40,000 J of work over a 5.6 second interval

Physics
1 answer:
Tcecarenko [31]3 years ago
8 0

Answer:

7142.86W

Explanation:

Given parameters:

Work done by brake  = 40000J

Time taken = 5.6s

Unknown:

Power used by car  = ?

Solution:

Power can be defined as the rate at which work is done. It is mathematically expressed as;

        Power = \frac{work done }{time taken}

Now input the variables;

           Power  = \frac{40000}{5.6}   = 7142.86W

You might be interested in
The place where things are pushed together is.. <br><br> (Plz help me, I’m in a quiz)
kogti [31]
Can I see the book you read for I can answer and it more info because your question doesn’t make sense
7 0
3 years ago
Read 2 more answers
A diver jumps from a high platform and stays in the air for 1 second. How high was the platform?
ivolga24 [154]

Answer: Depends

Explanation:

Depends on how much the diver weighs.

6 0
2 years ago
Karla Ayala pulls a sled on an icy road (dangerous!). Because of Karla's pull, the tension force is 151 N, and the rope makes a
skelet666 [1.2K]

Answer:

W = 1418.9 J = 1.418 KJ

Explanation:

In order to find the work done by the pull force applied by Karla, we need to can use the formula of work done. This formula tells us that work done on a body is the product of the distance covered by the object with the component of force applied in the direction of that displacement:

W = F.d

W = Fd Cosθ

where,

W = Work Done = ?

F = Force = 151 N

d = distance covered = 10 m

θ = Angle with horizontal = 20°

Therefore,

W = (151 N)(10 m) Cos 20°

<u>W = 1418.9 J = 1.418 KJ</u>

6 0
3 years ago
PLEASE HELP! I don't get it at all! Speed is one thing; distance is another. Where is the arrow you shoot up at 50m/s when it ru
LuckyWell [14K]
I got you b, V(final)^2=V(initial+2acceleration*displacement
So this turns to (0m/s)^2=(50m/s)^2+2(9.8)(d) so just flip it all around to isolate d so you get
-(50m/s)^2/2(9.8) = d so you get roughly 12.7555 meters up
4 0
3 years ago
Read 2 more answers
The average distance from Earth to the Moon is 384,000 km. How many days would it take, traveling at 800 km/h (the typical speed
Gala2k [10]

Answer:

20 days, 480 hours

4 0
2 years ago
Other questions:
  • Which method of separation would work on a homogeneous mixture salt water
    8·2 answers
  • Identical marbles are released from the same height on each of the following four frictionless ramps . Compare the speed of the
    8·1 answer
  • If you run at a constant speed of 7.5 m/s, how long does it take for you to finish a 100 m race ? show your work
    10·1 answer
  • Mr. Fineman rolls a tennis ball off his desk. If his desk is 1 m tall, and the tennis ball is rolling off of his desk at a speed
    6·1 answer
  • Plz help
    7·1 answer
  • An athlete swims the length of 50m pool in 20sec, and
    5·1 answer
  • Sally is on a canoe that comes to a stop a small distance from the dock. Since it is such a small distance, Sally decides to jum
    13·1 answer
  • Can sound travel through space? Why or why not?
    10·1 answer
  • A football player runs down the field with a speed of 8 m/s. How long will it
    15·1 answer
  • According to the general theory of relativity, what are consequences of the curvature of space-time? Check all that apply. The d
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!