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
worty [1.4K]
2 years ago
13

Explain two ways you could reduce the friction between two surfaces

Physics
1 answer:
abruzzese [7]2 years ago
3 0
<span>A lubricant such as oil, grease, graphite powder  can reduce the friction between two surfaces. Or using metal balls to space them and reduce the contact surface area as used in ball bearings.</span>
You might be interested in
What is the current when a typical static charge of 0.234~\mu\text{c}0.234 μc moves from your finger to a metal doorknob in 0.59
Black_prince [1.1K]
The current is defined as the quantity of charge Q that passes through a certain location in a time \Delta t:
I= \frac{Q}{\Delta t}
Using the data of the problem, we find:
I= \frac{Q}{\Delta t} = \frac{0.234 \mu C}{0.595 \mu s}=\frac{0.234\cdot 10^{-6} C}{0.595 \cdot 10^{-6} s}=0.39 A
4 0
3 years ago
Will water pressure be greater at the bottom of a container that you put a hole in or at the top of a container?
ddd [48]
Pressure=hrg
pressure is great at the bottom because the weight lf water exerts pressure below the container due to the gravitational pull of the earth.
4 0
3 years ago
What is brownion motion
Alex777 [14]

Answer: Brownion motion is the erratic random movement of microscopic particles in a fluid, as a result of continuous bombardment from molecules of the surrounding medium.

Explanation:

Brownian motion is the random movement of particles in a fluid due to their collisions with other atoms or molecules.

4 0
3 years ago
What is a peppered moth?
amm1812

The peppered moth is a temperate species of night-flying moth. Peppered moth evolution is an example of population genetics and natural selection.
6 0
3 years ago
Read 2 more answers
Delivery trucks that operate by making use of energy stored in a rotating flywheel have been used in Europe. The trucks are char
Marta_Voda [28]

Answer:

KE = 2.535 x 10⁷ Joules

Explanation:

given,

angular speed of the fly wheel = 940 rad/s

mass of the cylinder = 630 Kg

radius = 1.35 m

KE of flywheel = ?

moment of inertia of the cylinder

I = \dfrac{1}{2}mr^2

 =\dfrac{1}{2}\times 630\times 1.35^2

 = 574 kg m²

kinetic energy of the fly wheel

KE = \dfrac{1}{2}I\omega^2

KE =\dfrac{1}{2}\times 574\times 940^2

KE = 2.535 x 10⁷ Joules

the kinetic energy of the flywheel is equal to KE = 2.535 x 10⁷ Joules

5 0
2 years ago
Other questions:
  • What is a lunar eclipse summary
    14·2 answers
  • Write a paragraph containing 8 rnery transformation
    6·1 answer
  • What do we call the force used when someone is pushing a lawnmower across the yard?
    11·2 answers
  • The block brake consists of a pin-connected lever and friction block at B. The coefficient of static friction between the wheel
    10·2 answers
  • Scouts at a camp shake the rope bridge they have just crossed and observe the wave crests to be 9.70 m apart. If they shake the
    9·1 answer
  • A uniform plank of length 6.1 m and mass 33 kg rests horizontally on a scaffold, with 1.6 m of the plank hanging over one end of
    5·1 answer
  • 22 POINTS!!PLEASE HELP
    7·1 answer
  • you press on the cqartiod ortery in your neck and begin counting . what are you mostly likely measuring?
    14·1 answer
  • Which astronomer proved that the planets of our solar system move in elliptical orbits? A. Kepler B. Copernicus C. Ptolemy D. Ga
    5·2 answers
  • A transformer has 500 volts applied to the primary side and 10,000 volts are measured
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!