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
Gelneren [198K]
3 years ago
11

How high should a box of mass 20kg is lifted to store energy of 10,000 J? (g=10m/s)​

Physics
1 answer:
Diano4ka-milaya [45]3 years ago
7 0

Answer:

Height, h = 50 meters.

Explanation:

Given the following data;

Mass = 20kg

Potential energy = 10,000 J

Acceleration due to gravity, g = 10m/s²

To find the height of the box;

Potential energy can be defined as an energy possessed by an object or body due to its position.

Mathematically, potential energy is given by the formula;

P.E = mgh

Where,

  • P.E represents potential energy measured in Joules.
  • m represents the mass of an object.
  • g represents acceleration due to gravity measured in meters per seconds square.
  • h represents the height measured in meters.

Substituting into the formula, we have;

10000 = 20*10*h

10000 = 200h

Height, h = 10000/200

Height, h = 50 meters.

You might be interested in
A ball rolls from rest at the top of a 15.5 m hill, downward to the right and back upward onto a 8.25 m hill. How fast is the ba
lana66690 [7]

Answer:

?

Explanation:

6 0
3 years ago
A golf club with mass 0.5 kg is swung at 23 m/s toward a stationary golf ball on a tee. The club barely slows down to 17 m/s, bu
mylen [45]

Answer:

I gotchu fam. 0.0435 kg

Explanation:

m1v1+m2v2=m1v1f+m2v2f

(0.5)(23)+(m2)(0)=(0.5)(17)+(m2)(69)

11.5=8.5+69m2

3=69m2

0.0435 kg

5 0
2 years ago
A proton is confined within an atomic nucleus of diameter 3.60 fm. part a estimate the smallest range of speeds you might find f
Cerrena [4.2K]
The answer for this problem would be:
Assuming non-relativistic momentum, then you have: 
ΔxΔp = mΔxΔv = h / (4) 
Δv = h / (4πmΔx) 
m ~ 1.67e-27 h ~ 6.62e-34,Δx = 4e-15 --> 
Δv ~ 6.62e-34 / (4π * 1.67e-27 * 4e-15) ~ 7,886,270 m/s ~ 7.89e6 m/s 
That's about 1% of the speed of light, the assumption that it's non-relativistic.
3 0
3 years ago
Two strong magnets were brought close to each other. They were repelling each other. Explain what must have happened.​
r-ruslan [8.4K]

When two magnets are brought together, the opposite poles will attract one another, but the like poles will repel one another. This is similar to electric charges. Like charges repel, and unlike charges attract.

pls. mark brainliest am. dyning for it

8 0
2 years ago
Read 2 more answers
Describe a cell at the beginning of the Mitosis process.
ElenaW [278]
<span>Cells may appear inactive during this stage, but they are quite the opposite. This is the longest period of the complete cell cycle during which DNA replicates, the centrioles divide, and proteins are actively produced. </span>
4 0
2 years ago
Other questions:
  • you mix two ionic Solutions after you mix them in a beaker the solution turns cloudy after 5 minutes the solution becomes clear
    8·1 answer
  • Identify the names of animals that lived on Earth before dinosaurs.
    12·2 answers
  • Gravitational force is determined by which of the following
    6·1 answer
  • Two or more atoms can be held together through shared
    15·1 answer
  • A 70.0-kg ice hockey goalie, originally at rest, catches a 0.150-kg hockey puck slapped at him at a velocity of 35.0 m/s. Suppos
    13·1 answer
  • What is meant by physical balance? ​
    8·1 answer
  • 10. A triply ionized beryllium atom is in the ground state. It absorbs energy and makes a transition to the n = 5 excited state.
    8·1 answer
  • The acceleration of an object is constant when its velocity is :
    14·2 answers
  • Which statement best describes the electric field?
    10·1 answer
  • Encuentra la masa molar<br><br> TO<br><br> de 65 litros de SO2
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!