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
andriy [413]
2 years ago
8

The summit of Mount Everest is 8848.0 m above sea level, making it the highest summit on Earth. In 1953, Edmund Hillary was the

first person to reach the summit. Suppose upon reaching there, Hillary slid a rock with a 45.0 g mass down the side of the mountain. If the rock’s speed was 27.0 m/s when it was 8806.0 m above sea level, how much work was done on the rock by air resistance?
Physics
1 answer:
Aleksandr-060686 [28]2 years ago
6 0

The work done on the rock by air resistance is 39019.68 J

<h3>Data obtained from the question </h3>
  • Mass (m) = 45 g
  • Velocity (v) = 27 m/s
  • Height (h) = 8848 m
  • Work done =?

<h3>Definition of work </h3>

Work is simply defined as the product of force and distance moved in the direction of the force.

Work = Force × distance

From the question given above, we can see that height is involved. Thus,

Work = potential energy

Potential energy = mass (m) × acceleration due to gravity (g) × height (h)

Potential energy = mgh

Therefore,

Work = mgh

With the above formula, we can obtain the work done.

<h3>How to determine the work done </h3>
  • Mass (m) = 45 g = 45 / 1000 = 0.45 Kg
  • Height (h) = 8848 m
  • Acceleration due to gravity (g) = 9.8 m/s²
  • Work done =?

Work = mgh

Work = 0.45 × 9.8 × 8848

Work = 39019.68 J

Learn more about workdone:

brainly.com/question/17358222

You might be interested in
A car travels straight for 20 miles on a road that is 30° north of east. What is the east component of the car’s displacement
Over [174]

The east component of the cars displacement is 17.3 miles.

Trigonometric ratio is used to show the relationship between the sides of a right angled triangle and its angles.

Let x represent the east component of the cars displacement.

Using trigonometric ratio:

cos(30) = x / 20

x = 20 * cos(30)

x = 17.3 miles

The east component of the cars displacement is 17.3 miles.

Find out more on Trigonometric ratio at: brainly.com/question/1201366

4 0
2 years ago
A wave with a period of 0.008 second has a frequency of?
tatyana61 [14]
The formula for frequency is f = 1/T where f is frequency and T is period in seconds. 
You have you period which is 0.008s and that is all you will need to solve or frequency in a wave:
f = 1/2
f = 1/0.008s
f = 125Hz
6 0
3 years ago
Read 2 more answers
How a suit of armor might be a good analogy for a function of the skeleton system
RideAnS [48]
How might a suit of armor be a good analogy for a function of the skeletal system?

It's a frame for your body and protects organs and armor protects your body from injury

4 0
3 years ago
Explain how objects in motion have kinetic energy, use examples
Ann [662]
Kinetic energy is energy that a body possesses by virtue of being in motion, there for if an object is moving, it has kinetic energy.
Example; A roller coaster sitting on top of hill has potential energy. When it starts to move and is going down the hill, it has kinetic energy. :)
8 0
3 years ago
Calculate the energy used by a radio of power 30W in 1 minute.
Alekssandra [29.7K]

Answer:

<u>1.8kJ</u>

Explanation:

Formula :

<u>Energy used = Power x time</u>

<u />

===============================================================

Given :

⇒ Power = 30 W

⇒ Time = 1 minute = 60 seconds

=============================================================

Solving :

⇒ Energy used = 30 W × 60 s

⇒ Energy used = 1,800 J

⇒ Energy used = <u>1.8kJ</u>

5 0
2 years ago
Read 2 more answers
Other questions:
  • Phases of the moon. Help!???????
    13·1 answer
  • Which characteristic of the planets in our solar system increases as the distance from the sun increase?
    8·1 answer
  • What we see as "moonlight" is really reflected sunlight.<br><br> True or False?
    9·1 answer
  • An airplane undergoes the following displacements, all at the same altitude: First, it flies 59.0 km in a direction 30.0° east o
    13·1 answer
  • A building that is 105.50 ft. feet tall is casting a shadow that is 37.50 ft. feet. If the building next to it, is casting a sha
    7·1 answer
  • How much work is done on a small car if a 3150 N force is exerted to move it 75.5 m to the side of the road
    11·1 answer
  • What does the m stand for in the enthalpy equation?
    12·1 answer
  • A dart is thrown from 1.50 m high at 10.0 m/s toward a target 1.73 m from the ground. At what angle was the dart thrown?
    6·1 answer
  • An object starts at 11 m/s with an acceleration of 12 m/s? What is its velocity after 4.5 seconds?
    9·1 answer
  • PLZ WHAT I DOO<br> I BROKE A WINDOW WHAT I DO
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!