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
Ludmilka [50]
3 years ago
12

A 45000 watt crane operating at full power lifts a 2100 kg object vertically for 17.4 seconds. How high has the crane lifted the

object?
Physics
1 answer:
LenKa [72]3 years ago
8 0

Answer:

Explanation:

We need the power equation here, which is:

Power = (F * Δx)/time

where F * Δx is the amount of work done.

F is a force which is measured in Newtons. We are given the mass of the object, but since we need a Force measure, we need the weight of the object:

F = 2100(9.0)

F = 21000 to the correct number of sig dig.

Now we can plug in the values we have and solve for the displacement, Δx:

45000=\frac{21000x}{17.4} and isolating x:

\frac{17.4(45000)}{21000}=x so

x = 37 m

You might be interested in
Many minerals, such as silver, are good conductors of heat and electricity. How could technology use this property to help ident
Aleks [24]

Answer:

This property could be used to create technologically-advanced tools or machines that could easily locate the mineral deposits.

Explanation:

Mineral deposits are hard to find, unless you have the skill or the proper tools in locating them. This is the reason why many people are mining in order to explore the different areas where they could find these deposits.

If one would consider the property of minerals, such as being good conductors of heat and electricity,<u> then they could create a tool or machine that would aid in their exploration.</u> Inventors could probably come up with a sensitive detector which signals when it reaches an area of high heat and electric conductivity. Since most minerals such as <em>gold, silver, copper, galena, bornite </em>and the like have this property, then miners will have a lesser amount of time looking for them.

If this technology will be implemented, though, regulation policy must be strictly implemented because it might lead to<em> over-mining</em> thus leading to the depletion of mineral deposits.

3 0
3 years ago
The process of deposition causes The process of deposition causes
docker41 [41]
A land form or land mass to be created over a long period of time
7 0
3 years ago
Read 2 more answers
A ball is falling after rolling off a tall roof. The ball has
Rom4ik [11]
C.
Because it’s falling it has acceleration in the y direction. If you have acceleration, you usually also have velocity, and since kinetic energy is KE= Mv^2 you know you have it. It also has potential energy because it has some height to it, and PE= Mgh.
8 0
3 years ago
Read 2 more answers
Which of the
kompoz [17]
C. Amount of oxygen

The others either change but don’t decrease or they increase.
8 0
2 years ago
An elephant pushes with 200 N on a load of trees. it then pushes these trees for 10 N. How much work did the elephant do?
Andreas93 [3]

Answer:

the answer is 2000Nm

Explanation:

wprk done = force × distance moved

w.d = 200N × 10m

w.d = 2000Nm

mark me as brainliest plyyzzz

7 0
3 years ago
Other questions:
  • Which one of the following is a derived SI unit?<br>A.newton B.meter C.mole d.Kilogram ​
    10·1 answer
  • Which is the best example of Newton's First Law of Motion? A small, lightweight ball and a large, heavy ball are dropped off the
    13·2 answers
  • The crowd in a stadium creates a wave traveling across the stands by having people stand up and then sit down one after another.
    9·2 answers
  • Multiple-Concept Example 13 presents useful background for this problem. The cheetah is one of the fastest accelerating animals,
    9·1 answer
  • Why is it important to understand your strength and weakness<br><br>​
    8·2 answers
  • If white light shines on an object and the red, orange, green, blue and purple light is absorbed. What color does your eye see?
    12·2 answers
  • Can someone help with just question 1 :)
    15·1 answer
  • the amplitude of an oscillator decreases to 36.8% of its initial value in 10.0 s. what is the value of the time constant
    11·1 answer
  • Which of the following are true about S waves
    7·1 answer
  • A weather balloon has a volume of 35 L at sea level (1.0 atm). After the balloon is released it rises to where the air pressure
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!