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
soldi70 [24.7K]
3 years ago
13

HELP PLS! What is the power when a crane lifts a piece of pipe from the ground to a certain height, doing 15000 J of work in 25s

?
Physics
1 answer:
Pachacha [2.7K]3 years ago
7 0

Answer: 600watts

Explanation:

Power of crane = ?

Work done by crane = 15000 J

Time taken = 25s

Recall that power is the rate of work done per unit time

i.e Power = work/time

Power = 15000J/25seconds

Power = 600watts

Thus, the power of the crane is 600watts

You might be interested in
Rocks A and B are located at the same height on top of a hill. The mass of rock A is twice the mass of rock B. How does the pote
Ronch [10]

Potential energy is defined by formula

U = mgh

here

m = mass

g = acceleration due to gravity

h = height

Now here two different stones are located at same height

while mass of stone A is twice that of stone B

so here we can say potential energy of A is

U_a = (2m)gh

Similarly potential energy of B is

U_b = mgh

now if we take the ratio of two energy

\frac{U_a}{U_b} = 2

so we can say potential energy of stone A is two times the potential energy of B

7 0
3 years ago
The natural pH of rain water is?
SOVA2 [1]
5.6 which would be acidic!
6 0
3 years ago
Read 2 more answers
Andre heated several solid crystals of a substance called iodine, and the iodine changed directly to a gas. The iodine gas then
Strike441 [17]

The correct choice is

B. sublimation, then condensation

Sublimation is the name of the process where a solid directly converts into gas on heating. on heating solid crystals of iodine directly change into gas. hence this is sublimation.

condensation is the process where gas is converted into liquid on cooling.

here iodine gas is being converted into droplets on reducing the temperature. hence this is condensation.


8 0
3 years ago
Read 2 more answers
The Amazon rainforest has millions of trees down in South America. Pantanal, the largest wetland, or swamp, on Earth sits direct
Vikentia [17]

Answer:The Pantanal is, when the season changes of the river flow, the pantanal shrinks after a few river channels The amazon rainforest has a lot of trees.The vapor rises and condenses it into clouds.Water leaves the forest and comes back, the amazon leaves itself.If the amazon water was not to go by itself everything would be different.

5 0
2 years ago
Read 2 more answers
A body starts from rest and travels ‘s’ m in 2nd second, than acceleration is.
Lana71 [14]

Answer:

3m

Explanation:

3 0
2 years ago
Other questions:
  • The three classes of rocks are sedimentary, metamorphic, and igneous. How are rocks classified into one of these three groups? A
    11·2 answers
  • A car traveling at 24 m/s starts to decelerate steadily. It comes to a complete stop in 8 seconds. What is its acceleration?
    11·1 answer
  • An astronaut of mass m in a spacecraft experiences a gravitational force F=mg when stationary on the launchpad.
    15·1 answer
  • Use Kepler’s laws and the period of the Moon (27.4 d) to determine the period of an artificial satellite orbiting very near the
    5·2 answers
  • If one's hands are being warmed by holding them to one side of a flame, the predominant form of heat transfer is what process?
    11·1 answer
  • 2. A 2.5 meter-long wave travels at 1 m/s towards a fixed boundary. After 2 seconds, how does the wave appear?
    10·1 answer
  • What is the speed of light ?​
    14·1 answer
  • 16. The sum of kinetic energies in an object.
    8·1 answer
  • In a parallel circuit, if one bulb goes out the other bulbs will continue to work because they each have their own path.
    14·2 answers
  • Can someone please answer this, ill give you brainliest and your getting 100 points.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!