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
NeX [460]
3 years ago
13

A car with a mass of 500 kg is moving at a speed of 12 m/s. How much kinetic energy does it have?

Physics
1 answer:
shtirl [24]3 years ago
5 0

Answer:

36000

Explanation:

1/2mv²=0.5×500×12²=36000j

You might be interested in
Max ran 100 feet in 10 seconds.
Ivanshal [37]

Answer:

for max :

100 feet in 10 secs

for molly :

60 feet in 5 secs = 120 feet in 10 secs

so, molly ran farther in the same time interval i.e. covered 120 feet where as Max covered 100 feet

Explanation:

brainliest plz

8 0
2 years ago
Read 2 more answers
In the picture of the atom above, what subatomic particle does the letter A represent?
ra1l [238]

Answer:

Electron

Explanation:

In the picture, the letter A is pointing to an electron.

4 0
3 years ago
What can a machine do?
zlopas [31]

Answer:

B. Make the work you do feel easier

3 0
3 years ago
Read 2 more answers
Before giving an injection, a nurse dabs some alcohol onto the patient`s arm. This makes the patient`s skin feels cold. Explain
mezya [45]

Answer:

Before giving an injection, a nurse dabs some alcohol onto the patient`s arm. This makes the patient`s skin feels cold. Explain Why ?

<em> Evaporative cooling makes this to be possible</em>

Explanation:

The concept

For a liquid to evaporate, there must be a breakdown of the bond between the molecules of the liquid. These bonds are broken when the molecules gain heat energy. So basically evaporation occurs when the molecules of the substance gain energy in form of heat.

Our Scenario

Just like the way our body excretes sweat on a sunny day, alcohol takes energy from the skin to evaporate. The bond holding the molecules of alcohol breaks faster due to its low boiling point and this account why it evaporates faster. The sudden evaporation of alcohol when dabbed on the skin results in quick utilization of heat energy making the skin feel cold for some time.

The utilization of heat energy from the skin results in evaporation cooling which makes the skin feel colder.

7 0
3 years ago
You stand on a straight desert road at night and observe a vehicle approaching. This vehicle is equipped with two small headligh
LuckyWell [14K]

For a circular aperture, the first minima (n=1) as an angular separation from the peak of the central maxima given by

Sinθ = 1.22λ / d

Where,

d is the aperture or pupil diameter

d = 4.69 mm = 4.69 × 10^-3m

λ is the wavelength

λ = 545 nm = 545 × 10^-9 m

Then,

Sinθ = 1.22λ / d

Sinθ = 1.22 × 545 × 10^-9 / 4.69 × 10^-3

Sinθ = 1.418 × 10^-4 rad

Then, the head light sources have the same angular separation θ from the eye as the image have inside the eye.

For the headlight

Sinθ ≈ light separation / distantce for the eye

Light separation is give as x = 0.659 m

And let the distance of the eye be D

Then,

Sinθ = x / D

Make D subject of formula

D = x / Sinθ

D = 0.695 / 1.418 × 10^-4

D = 4902.316m

To km, 1km = 1000m

D ≈ 4.9 km

4 0
3 years ago
Other questions:
  • A pilot heads his jet due east. The jet has a speed of 475 mi/h relative to the air. The wind is blowing due north with a speed
    10·1 answer
  • Oxygen (O2) is best described as which of the following: An element A compound A mixture
    13·1 answer
  • Low-mass and medium-mass stars eventually
    10·1 answer
  • In scientific notation, 474,000 is written:
    11·1 answer
  • The deepest well from which water can be pumped, by creating a vacuum on the top end of the pipe
    9·1 answer
  • What do scientists use to look at cells, tissues, and small organisms to see how their biological processes differ in space?
    12·1 answer
  • How do we know the sun rotates?
    5·2 answers
  • Thiết bị nào sau đây không phải là nguồn điện
    11·1 answer
  • What happens to the sound an object makes when the speed of vibrations decreases (slow down)?.
    12·1 answer
  • A-Some resistors are labelled with a red band. This shows that their true resistance will be within 2, point, 0, percent,2.0% of
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!