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
miss Akunina [59]
3 years ago
13

How much work is done in lifting a 300 Newton rock 10 meters off the ground?

Physics
1 answer:
Kazeer [188]3 years ago
3 0

Answer:

<h2>3000 J</h2>

Explanation:

The work done by an object can be found by using the formula

workdone = force × distance

From the question we have

workdone = 300 × 10

We have the final answer as

<h3>3000 J</h3>

Hope this helps you

You might be interested in
How are wavelength and frequency related for a wave moving at a constant speed?
soldier1979 [14.2K]
Mathematically, to compute for the wavelength, λ,  we have

\lambda = \frac{v}{f}

where v is the velocity and f is the frequency.
As we can see here, given that velocity is constant, wavelength increases as frequency decreases. This shows that wavelength is inversely proportional to frequency. 

Answer: Wavelength and frequency are inversely related to each other.
6 0
3 years ago
Which of the following are examples of centripetal acceleration? Check all that apply.
k0ka [10]

<u>Answer:</u> The correct answer is option B, C and E.

<u>Explanation:</u>

Centripetal acceleration is defined as the acceleration win which an object moves in a curved path. Formula for this acceleration is given by the equation:

a_c=\frac{v^2}{r}

where,

a_c = centripetal acceleration

v = linear speed of the object

r = radius of the curved path

From the given options,

Option A: As, the golf ball is not moving in a curved path. Hence, it is not an example of centripetal acceleration.

Option B: As, a car is moving in a curved path. Hence, it is an example of centripetal acceleration.

Option C: As, a person is moving in a curved path. Hence, it is an example of centripetal acceleration.

Option D: As, a car is not moving in a curved path and is moving in a straight road. Hence, it is not an example of centripetal acceleration. The car is moving with zero acceleration because the direction of the car is not changing.

Option E: As, a bicyclist is moving in a curved path which is around the lake. Hence, it is an example of centripetal acceleration.

6 0
3 years ago
On a distant planet a freely falling object has an acceleration of 20m/s. what vertical distance will an object dropped from res
AveGali [126]
<span>Use s = ut + 1/2 at^2, so
       
s = 0 + 1/2 x20 x 1.8 x 1.8
       
s = 32.4 m.</span>
3 0
3 years ago
How does the wavelength of a wave change when frequency decreases? when frequency increases?
Law Incorporation [45]

When the frequency decreases the wavelength is further apart. When it increases its closer together. Think about a flat line when the frequency is low the wavelengths are wider. When its a high frequency the squiggly lines on the moniter are taller and thinner so the wavelengths are not as wide and not that far from each other depending on how high the frequency is.

5 0
3 years ago
Imagine you have a collection of identical flat-bottomed coffee filters that can be nested (stacked inside of each other) so tha
skad [1K]

Answer:

the terminal velocity of 14 nested coffee filters is 3.2 m/s

Explanation:

Given the data in the question;

we know that;

The terminal velocity is proportional to the square root of weight.

v ∝ √W

v = k√W

the proportionality constant depends upon the surface area and the density of the medium (like air). The coffee filters can be stacked such that the resulting area is roughly unchanged. So, the constant of proportionality k is also unchanged

v/√W = constant

v₂/√W₂ = v₁/√W₁

v₂ = v₁√(W₂ / W₁ )

given that;

v₁ = 0.856 m/s,

W₂ = 14W₁; meaning 14 coffee filters have 14 times the weight of a single coffee filter

so we substitute

v₂ = 0.856 √(14W₁  / W₁ )

v₂  = 0.856 √( 14( W₁/W₁)

v₂  = 0.856 √( 14(1)

v₂  = 0.856 √( 14 )

v₂  = 0.856 × 3.741657

v₂  = 3.2 m/s

Therefore, the terminal velocity of 14 nested coffee filters is 3.2 m/s

6 0
3 years ago
Other questions:
  • Which of these structures is/are NOT properly matched with one of its/their functions?nasopharynx: conduct air toward and from t
    6·1 answer
  • There are eight men sitting on a couch. Three legs break and six men leave. How many legs are remaining
    15·2 answers
  • During a care on level ground, Andra runs with an average velocity of 6.02 m/s to the East. What distance does Andra cover in 13
    12·1 answer
  • In an overhead camshaft engine, the lobes make direct contact with the 
    15·2 answers
  • Explain how convection currents help mushrooms reproduce. Which spheres are interacting in this example?
    12·1 answer
  • Jen falls out of a tree and lands on a trampoline. The trampoline sags 60 cm before launching Jen back into the air. At the very
    14·1 answer
  • Why are SI units helpful for describing objects? A. They are the standard used by scientists worldwide. B. They are more accurat
    12·1 answer
  • A 1250-kg car moves at 20.0 m/s. How much work must be done on the car to increase its speed to 30.0 m/s.
    11·1 answer
  • A farmer heaves a 7.56 kg bale of hay with a final velocity of 4.75. What is the kinetic energy of the bale?
    12·1 answer
  • Uranium-235 Fission
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!