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
Tasya [4]
2 years ago
10

2. Which of the following is an example of work being done on an object? A prism scatters ultraviolet light into visible light.

A box rests on the floor. A man pushes a couch across the room. Water in a pot changes into steam
Physics
2 answers:
Liula [17]2 years ago
7 0
A man pushes a couch across the room is the answer!

SCORPION-xisa [38]2 years ago
7 0
The answer is the man pushing the couch against the floor because he is using his force to move an object. If I understood the question correctly, and I think I did. Then the answer must be C
You might be interested in
Cart 1 has an initial velocity and hits cart 2 which is stationary. after a perfectly inelastic collision, the combined carts ar
Tomtit [17]

Option(a)  the mass of cart 2 is twice that of the mass of cart 1 is the right answer.

The mass of cart 2 is twice that of the mass of cart 1  is correct about the mass of cart 2.

Let's demonstrate the issue using variables:

Let,

m1=mass of cart 1

m2=mass of cart 2

v1 = velocity of cart 1 before collision

v2 = velocity of cart 2 before collision

v' = velocity of the carts after collision

Using the conservation of momentum for perfectly inelastic collisions:

m1v1 + m2v2 = (m1 + m2)v'

v2 = 0 because it is stationary

v' = 1/3*v1

m1v1 = (m1+m2)(1/3)(v1)

m1 = 1/3*m1 + 1/3*m2

1/3*m2 = m1 - 1/3*m1

1/3*m2 = 2/3*m1

m2 = 2m1

From this we can conclude that the mass of cart 2 is twice that of the mass of cart 1.

To learn more about inelastic collision visit:

brainly.com/question/14521843

#SPJ4

4 0
1 year ago
What effect does Earth’s spherical shape have on the amount of sunlight that reaches the equator?
Natasha_Volkova [10]
Because the Earth<span> is a sphere, the surface gets much more intense </span>sunlight<span>, hence heat, at </span>the equator<span>than at the poles.</span>
6 0
3 years ago
Read 2 more answers
The superheroine Xanaxa, who has a mass of 68.1 kg , is pursuing the 75.3 kg archvillain Lexlax. She leaps from the ground to th
Alexandra [31]

The concept required to solve this problem is associated with potential energy. Recall that potential energy is defined as the product between mass, gravity, and change in height. Mathematically it can be described as

U = mg\Delta h

Here,

\Delta h = Change in height

m = mass of super heroine

g = Acceleration due to gravity

The change in height will be,

\Delta h = h_f - h_i

The final position of the heroin is below the ground level,

h_f = -16.1m

The initial height will be the zero point of our system of reference,

\Delta h = -16.1m-0m

\Delta h = -16.1m

Replacing all this values we have,

U = mg\Delta h

U = (68.1kg)(9.8m/s^2)(-16.1m)

U = -10744.81J

Since the final position of the heroine is located below the ground, there will net loss of gravitational potential energy of 10744.81J

4 0
3 years ago
If you are pushing on a crate on a frictionless surface in one direction, and your friend is pushing on the crate in the opposit
liberstina [14]

Answer:

Its not A..

Explanation:

I chose A - was incorrect

3 0
3 years ago
What causes competition among organisms?
irga5000 [103]

Answer:

Whats up Bmw,

The organisms is caused when both the organisms or species are harmed, which is limited supply of at least one resource from food or even water used by both can be a factor.

Explanation:

Hope I helped you, and let me know if you need help on anything else :p

8 0
3 years ago
Read 2 more answers
Other questions:
  • A car advertisement claims their car can go from a stopped position to moving 60 miles per hour in 5 seconds. The advertisement
    15·1 answer
  • Which statement correctly describes magnetic field lines?
    13·2 answers
  • Write a hypothesis about the effect of temperature and surface area on the rate of chemical reactions using this format: “If . .
    9·2 answers
  • To t
    7·1 answer
  • The rate at which an object's velocity changes is called its
    14·2 answers
  • A battery-operated car utilizes a 12.0 V system. Find the charge the batteries must be able to move in order to accelerate the 7
    9·1 answer
  • A 2kg object travels to the right at 5.5 m/s after colliding with a 3kg object, initially at rest, what are the speeds of each o
    5·1 answer
  • Which statement accurately describes current electricity?
    11·1 answer
  • .A 100.0-W lightbulb is 22 percent efficient. This means that 22 percent of the electrical energy is transformed to radiant ener
    9·1 answer
  • To understand the behavior of the electric field at the surface of a conductor, and its relationship to surface charge on the co
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!