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
zubka84 [21]
3 years ago
6

you and 3 friends apply a combined force of 489.5n to push a piano. The amount of work done is 1762.2j. What distance did the pi

ano move
Physics
1 answer:
aleksandr82 [10.1K]3 years ago
5 0

Answer: 3.6m

Explanation:

Work done = force * distance

Distance = workdone / force

D= 1762.2J / 489.5n

D= 3.6m

You might be interested in
A man pushed the box with a force of 20 N. He doubled his force to 40 N. The box did not
Alex787 [66]

Answer:

A

Explanation:

if the man doubles his force to 40 and the box was yet to move that means acceleration also doubled so your answer would be A

8 0
2 years ago
What does a curved gradient line in a distance-time graph represent?
GREYUIT [131]

Answer:

If the line is curved, the slope is changing, which also means the velocity is changing. In a distance-time graph, the gradient of the line is equal to the speed of the object. The more the gradient (and the steeper the line) the faster the object is moving.

4 0
2 years ago
A diffraction grating with 750 slits per mm is illuminated by light which gives a first-order diffraction angle of 34.0°. What i
lesya [120]
<h2>Answer: 745.59 nm</h2>

Explanation:

The diffraction angles \theta_{n} when we have a slit divided into n parts are obtained by the following equation:

dsin\theta_{n}=n\lambda (1)

Where:

d is the width of the slit

\lambda is the wavelength of the light  

n is an integer different from zero

Now, the first-order diffraction angle is given when n=1, hence equation (1) becomes:

dsin\theta_{1}=\lambda (2)

We know:

\theta_{1}=34\°

In addition we are told the diffraction grating has 750 slits per mm, this means:

d=\frac{1mm}{750}

Solving (2) with the known values we will find \lambda:

\lambda=(\frac{1mm}{750})sin(34\°) (3)

\lambda=0.00074559mm (4)

Knowing 1mm=10^{6}nm:

\lambda=745.59nm  >>>This is the wavelength of the light, wich corresponds to red.

6 0
3 years ago
What are Earth's mineral resources and how long might<br> reserves last?
amm1812
Reserves might last 53.3 years.

Earth’s mineral resources:

3 0
2 years ago
Is the state of the air in an isolated room completely specified by the temperature and the pressure? Explain
anyanavicka [17]
I think these two variables are sufficient to completely specify the state.

In an isolated room with air only ,the volume is fixed.Mass ,density and its specific volume can be easily known.

Other thermodynamic properties like entropy, enthalpy etc are also fixed at a given temperature & pressure.
4 0
3 years ago
Other questions:
  • How many protons are in the radioactive isotope 40/19K?
    14·1 answer
  • What type of circuit is this?
    5·2 answers
  • A 1.70 kg block slides on a horizontal, frictionless surface until it encounters a spring with a force constant of 955 N/m. The
    5·1 answer
  • Ouestion 1
    6·1 answer
  • 10. How much U.S. oil demand is represented by the large oil tanker?
    13·1 answer
  • The loudness of a sound is the wave's _______
    14·2 answers
  • Helpppppppp pleaseeeee
    6·1 answer
  • A child is pushing a merry-go-round. The angle through which the merry-go-round has turned varies with time according to θ(t)=γt
    12·1 answer
  • 2. In a race, if a runner starts and stops at the same position, what is their<br> displacement? *
    10·1 answer
  • Pls help me, tomorrow is the deadline of my assignment ​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!