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
maksim [4K]
2 years ago
11

The power produced by an electric motor is 400w.how long will it take the motor to do 10,000 j of work

Physics
1 answer:
Lubov Fominskaja [6]2 years ago
7 0

Answer:

Energy = Power × Time

We make Time the subject in this equation

Time = Energy ÷ Power

Time = 10000 ÷ 400

Time = 25seconds

You might be interested in
Halving the distance (i.e., decreasing by a factor of two) between two charged objects will cause the electrical force between t
Tcecarenko [31]

Explanation:

Below is an attachment containing the solution.

7 0
3 years ago
A ball bounces changing velocity from vi=15m/s[D] to vf=15m/s[U] in t=0.01s. The balls acceleration is *
fomenos

Answer:

Option (A) is correct

Explanation:

a= (vf-vi)/ t

put the values

hence,

a= ( 15-15)/0.01

a=0

5 0
2 years ago
Read 2 more answers
What property of light is suggested by the formation of shadows​
Mandarinka [93]

Answer:

The reflection and rectilinear propagation of light helps in the formation of shadows and also tells light doesn't penetrate opaque materials.

3 0
3 years ago
In the following description, QUOTE the portion that addresses weather in the area.
olga nikolaevna [1]

Answer:

Portland normally had rainy, but mild winters. Yesterday it rained 0.75 inches in Portland.

Explanation:

This talks about the weather

4 0
3 years ago
A bowling ball is launched from the top of a building at an angle of 35° above the horizontal with an initial speed of 15 m/s. T
Mamont248 [21]

Let y_0 be the height of the building and thus the initial height of the ball. The ball's altitude at time t is given by

y=y_0+\left(15\dfrac{\rm m}{\rm s}\right)\sin35^\circ\,t-\dfrac g2t^2

where g=9.80\frac{\rm m}{\mathrm s^2} is the acceleration due to gravity.

The ball reaches the ground when y=0 after t=2.9\,\mathrm s. Solve for y_0:

0=y_0+\left(15\dfrac{\rm m}{\rm s}\right)\sin35^\circ(2.9\,\mathrm s)-\dfrac12\left(9.80\dfrac{\rm m}{\mathrm s^2}\right)(2.9\,\mathrm s)^2

\implies y_0\approx16.258\,\mathrm m

so the building is about 16 m tall (keeping track of significant digits).

3 0
3 years ago
Other questions:
  • Can someone help me out by balancing this equation? :')
    7·1 answer
  • Compare the energy consumption of two commonly used items in the household. calculate the energy used by a 1.20 kw toaster oven,
    11·2 answers
  • A rocket, weighing 43576 N, has an engine that provides an upward force of 11918 N. It reaches a maximum speed of 713 m/s. For h
    15·1 answer
  • A source from which organisms generally take elements is called a/an
    10·2 answers
  • Question In picture PLEASE HELP NOW
    10·1 answer
  • What are the blood components?
    13·1 answer
  • You are making a 568b utp crossover cable that will be used to cascade two switches on an ethernet network. you have attached an
    13·1 answer
  • what is the closest to the order of magnitude of the energy rquired to split a nucleus in to its individual protons and neutrons
    12·1 answer
  • Find the ratio of the diameter of aluminium to copper wire, if they have the same
    12·1 answer
  • Full moon is located______
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!