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
Likurg_2 [28]
3 years ago
11

Compared with a car moving at some original speed, how much work must the brakes of a car supply to stop a car that is moving tw

ice as fast.
Physics
1 answer:
vovangra [49]3 years ago
8 0

Answer:

Compared with a car moving at some original speed, four times work must the brakes of a car supply to stop a car that is moving twice as fast. Stopping distance should also be four times.

Explanation:

You might be interested in
Describe each of the following as a physical or chemical property. a. Neon is a colorless gas at room temperature.b. Apple slice
Cloud [144]

Answer: Neon is a colorless gas at room temperature: Physical property

At room temperature, mercury is a liquid: Physical property

Apple slices turn brown when exposed to air: Chemical property

Phosphorus will ignite when exposed to air: Chemical property

Explanation:

Physical property is defined as the property of a substance which becomes evident during physical change in which there is alteration in shape, size etc. No new substance gets formed during physical change.

Example:  Neon is a colorless gas at room temperature

At room temperature, mercury is a liquid.

Chemical property is defined as the property of a substance which becomes evident during chemical change in which a change in chemical composition takes place. A new substance is formed in these reactions.

Example: Apple slices turn brown when exposed to air: It undergoes oxidation which is a chemical change

Phosphorus will ignite when exposed to air: It undergoes oxidation which is a chemical change

5 0
3 years ago
Read 2 more answers
What magnet maintains its magnetic proaperties even in the absence of an external magnetic field? a) Ferromagnet b Paramagnet c)
insens350 [35]

Answer:

(a) Ferromagnet

Explanation:

Ferromagnetism is defined as the property by which certain magnets form the permanent magnets.

It is tone of the strong magnetism and it is common phenomenon of magnet in the everyday life of magnetism.

Permanent magnets are made up of ferromagnetic material, in this if the magnetic field is applied then this material is magnetized but do not losses its magnetic property after removal of external magnetic field.

5 0
3 years ago
Please answer help me
Andrews [41]
I believe the answer is x
7 0
3 years ago
g When attempting to determine the coefficient of kinetic friction, why is it necessary to move the block with constant velocity
GREYUIT [131]

Answer:

This is because motion is intended to occur but at zero acceleration. It means at a constant velocity, henceFor that to happen the pulling force F must exactly equal the frictional force Fk .

7 0
3 years ago
Clara and Eli used materials they could find at home to make a simple seismograph. As Clara pulls the strip of paper through the
tatyana61 [14]

Answer:

The recording that Eli and Clara's Seismograph would show will be very close to that a real Seismograph would show. This is because the mechanism they have constructed is very similar to the real one.

Explanation:

hope this helps

6 0
2 years ago
Other questions:
  • Which of the following is true concerning atoms?Atoms are made of even smaller substances called subatomic particles
    15·1 answer
  • When a virtual image is created in a plane mirrora. the image is upright.b. the image is located behind the mirror.c. reflected
    9·1 answer
  • What is an example of a conceptual model in science?
    14·2 answers
  • How many neutrons does an atom of Dubnium have in its nucleus
    6·1 answer
  • Find the voltage change when: a. An electric field does 12 J of work on a 0.0001-C charge. b. The same electric field does 24 J
    5·1 answer
  • A scientific idea becomes valid when it is
    11·1 answer
  • Research indicates many adults experience emotional turmoil during their 40s. T or F
    10·2 answers
  • What would be the atomic number of an atom that is composed of 15 protons and 18 neutron
    15·1 answer
  • Which of the following units is part of the international system of units, or SI?
    9·1 answer
  • You measure an angle of 21. 1 when the light passes through a grating with 610 lines per mm. what is the wavelength of the light
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!