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
Feliz [49]
4 years ago
7

PLEASE PLEASE HELP (Picture)

Physics
1 answer:
atroni [7]4 years ago
7 0

Answer:

light slows it down

Explanation:

You might be interested in
If a roller coaster train has a potential energy of 1,500 J and a kinetic energy of 500 J as it starts to travel downhill, what
DENIUS [597]

Its total mechanical energy is <em>2,000 J</em>.

We don't have enough information to say anything about its heat energy, its chemical energy, or the energy due to any electrical charge it may be carrying or any magnetic field it may have.

6 0
3 years ago
Motion can be detected by using background objects that are not moving called_______________ points
gtnhenbr [62]

Answer: A reference point

Explanation: If an object is in motion then its distance from another object is changing.  Whether an object is moving or not depends on your point of view. For example, a woman riding on a bus is not moving in relation to the seat she is sitting on, but she is moving in relation to the buildings the bus passes. A reference point is a place or object used for comparison to determine if something is in motion. An object is in motion if it changes position relative to a reference point. You assume that the reference point is stationary, or not moving.

8 0
3 years ago
Which type of radiation on the electromagnetic spectrum has the greatest energy and why?
nika2105 [10]

Answer:

Gamma rays

Explanation:

Have the highest energies. The shortest wavelengths, and the highest frequencies.

4 0
3 years ago
Read 2 more answers
The driver of a car applies the brakes for 4.0 s.As a result an average force of 7500N is exerted in the car to slow it down.Wha
Sindrei [870]

Answer:

The change in momentum of the car is  30,000 kg m/s                  

Explanation:

Given,

The force exerted on the car to slow down, F = 7500 N

The time period of force, t = 4 s

The rate of change of momentum of the object is equal to the force acting on it.

Therefore,

                                   <em> (mv - mu) / t = F</em>

Where v and u are the final and initial velocity of the car. The change in momentum of the car,

                                    mv - mu = F x t

                                                   = 7500 x 4

                                                   = 30,000 kg m/s

Hence the change in momentum of the car is  30,000 kg m/s                  

7 0
3 years ago
Pls help!!<br> 1 example of a conductor and 1 example of a insulator in your EVERYDAY world.
Mkey [24]

Answer:

here

Explanation:

Examples of insulators include plastics, Styrofoam, paper, rubber, glass and dry air.

Examples of conductors include metals, aqueous solutions of salts

3 0
3 years ago
Read 2 more answers
Other questions:
  • What happens when light enters water?
    13·1 answer
  • Define valence electrons
    14·2 answers
  • What does local acceleration mean?
    12·1 answer
  • efrigerant-134a is expanded isentropically from 600 kPa and 70°C at the inlet of a steady-flow turbine to 100 kPa at the outlet.
    5·1 answer
  • Plz help me fast WITH EXTRA POINTS AFTER SUBMITTING
    5·1 answer
  • If the speed of an object were to triple, what would be the increase of kinetic energy?
    10·1 answer
  • Select all of the answers that apply. Jenna dives 20 meters into the ocean. How much pressure does she feel?
    6·2 answers
  • Differences between pavement and<br>cuboidal epithelium tissue​
    12·1 answer
  • Pls help im begging you
    11·1 answer
  • A metal pot is filled with water and placed on top of a stove. As the stove heats up, the water begins to boil, and steam can be
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!