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
Hoochie [10]
3 years ago
13

Which of the following non-metals is used as a lubricant in powdered form?

Physics
1 answer:
blondinia [14]3 years ago
5 0

Answer:

Graphite.

Explanation:

Graphite:<em> "a gray crystalline allotropic form of carbon which occurs as a mineral in some rocks and can be made from coke. It is used as a solid lubricant, in pencils, and as a moderator in nuclear reactors."</em>

You might be interested in
Thick rubber gloves prevent electric shock because​
Kaylis [27]

Answer:

Rubber is an insulator.

Explanation:

Rubber is an insulator. Electricity will always travel "the path of least resistance." Rubber has a very high resistance, so electricity will go somewhere else to find ground.

7 0
3 years ago
Read 2 more answers
The tire on this drag racer is severely twisted: The force of the road on the tire is quite large(most likely several times the
Gre4nikov [31]

Answer: Speeding Up

Explanation:

Force is proportional to the acceleration of an object. The greater the force, the more acceleration will be produced.

When the force on the tire is equal to the weight of the car, the car is reaching a stability as a result of increase in motion.

But when the force of the load on the tire is quite large(most likely several times the weight of the car) and is directed forward, then, the car is at high speed.

6 0
3 years ago
(b) Suppose oil spills from a ruptured tanker and spreads in a circular pattern. If the radius of the oil spill increases at a c
andreyandreev [35.5K]

Answer:

\frac{dA}{dt} \approx 245.044\,\frac{m^{2}}{s}

Explanation:

The formula for the surface of the circle is:

A(r) = \pi\cdot r^{2}

The rate of change of the spill area is obtained by deriving the previous formula in terms of time:

\frac{dA}{dt} = 2\pi\cdot r\cdot \frac{dr}{dt}

Finally, variables are replaced by known data:

\frac{dA}{dt} = 2\pi\cdot (39\,m)\cdot (1\,\frac{m}{s} )

\frac{dA}{dt} \approx 245.044\,\frac{m^{2}}{s}

4 0
4 years ago
Read 2 more answers
You weigh 716 newtons on Earth. You
Otrada [13]

Answer:

537 N

Explanation:

The force due to gravity of a planet is:

F = GMm / r²

where G is the universal gravitational constant

M is the mass of the planet

m is the mass of the object

and r is the distance between the object and the center of the planet

On Earth, you weigh 716 N, so:

716 N = GMm / r²

On planet X:

F = G (3M) m / (2r)²

F = 3/4 GMm / r²

F = 3/4 (716 N)

F = 537 N

8 0
4 years ago
Please really need help with this one
sergij07 [2.7K]
Well... question 7. kinetic energy is "energy in which a body processes while being in motion" :)
4 0
3 years ago
Other questions:
  • Please help on this one ? :)
    6·1 answer
  • Which type of valve is commonly used on private water supply systems and the words open or shut appear in a window as the valve
    14·1 answer
  • Which object has elastic potential energy? a piece of bread a ball at rest a stretched rubber band a falling leaf
    5·2 answers
  • No stars have been found with masses greater than 300 times our Sun because A. they shine exclusively at X-ray wavelengths and b
    5·1 answer
  • According to Newton's first law of motion, what is required to make an object at rest move?
    9·2 answers
  • 2. Two objects were lifted by a machine. One object had a mass of 2 kilograms, and was lifted at a speed of
    7·1 answer
  • An object is thrown vertically upward with an initial velocity of 50 m/s. Find
    10·1 answer
  • What happens to the magnitude of the gravitational force as the distance between two bodies increase?
    15·1 answer
  • 1.) A projectile is launched at 32.1 m/s and 52.6 º above the horizontal. Determine the:
    13·1 answer
  • This what i actually look like
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!