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
natita [175]
3 years ago
9

Which of the following statements correctly describes the role that friction plays in the motion of a train? *

Physics
2 answers:
Anna007 [38]3 years ago
8 0
C. FRICTION IS NECESSARY TO KEEP THE TRAIN ON THE TRACK AS IT IS MOVING
Lesechka [4]3 years ago
7 0

Answer:

Should be D!

Explanation:

You might be interested in
Oil having a density of 922kg/m^3 floats on water. A rectangular block of wood 3.97 cm high and with a density of 963 kg/m^3 flo
Blizzard [7]

Explanation:

For the equilibrium:

\rho_{wood}gh-\rho_{oil}g(h-x)-\rho_{water}gx=0ρ

wood

gh−ρ

oil

g(h−x)−ρ

water

gx=0

\rho_{wood}h-\rho_{oil}(h-x)-\rho_{water}x=0ρ

wood

h−ρ

oil

(h−x)−ρ

water

x=0

(974)(3.97)-928(3.97-x)-1000x=0(974)(3.97)−928(3.97−x)−1000x=0

x=2.54\ cmx=2.54 cm

3 0
2 years ago
Any body moving with simple harmonic motion is being acted on by a force that is:__________.
Stella [2.4K]

Answer:

B

Explanation:

Because this oscillations occur when the restoring force is directly proportional to displacement, given as

F=-kx

Where k= force constant

X= displacement

6 0
3 years ago
Calculate Speed The 2-kg metal ball moving at a speed of 3 m/s strikes a 1-kg wooden ball that is at rest. After the collision,
enot [183]

Answer:

53466kg.

Explanatiokn:

5 0
2 years ago
What is one way the biosphere can affect the geosphere
erica [24]

Answer: B

Explanation:

Biosphere breaks down rock of the geosphere (plant roots), but when it comes to soil, minerals of the geosphere feed the plants. Biosphere and atmosphere interact through animal and plant respiration of oxygen and carbon dioxide. Geosphere creates, destroys and keeps various biosphere places safe.

3 0
2 years ago
Read 2 more answers
Describe an experiment that would allow you to determine if it is warmer inside or outside the playhouse by using two similar cu
lara31 [8.8K]
It’s about drive it’s about power
8 0
2 years ago
Read 2 more answers
Other questions:
  • 4. Which statement best describes the movement of particles when a wave travels through a medium? The particles are (10 points)
    8·2 answers
  • consider the free-body diagram. if you want the box to move, the force applied while dragging must be greater than the
    8·1 answer
  • A 115-turn circular coil of radius 2.71 cm is immersed in a uniform magnetic field that is perpendicular to the plane of the coi
    9·1 answer
  • 488 J of work is done to a box which is moved across the floor for a distance of 8.9 m. What net force is required to act on the
    15·1 answer
  • Me - HS_SCLPhysical Science,
    8·1 answer
  • In the southern hemisphere, the longest day of the year happens during _____.
    9·2 answers
  • In a certain velocity selector consisting of perpendicular electric and magnetic fields, the charged particles move toward the e
    8·1 answer
  • The following force diagram represents Newton’s Third Law of Motion:
    6·1 answer
  • It is harmful to settle near the airport why
    11·1 answer
  • Sometimes, supplies can be delivered to people in remote areas by dropping them off from a plane. This is usually the case for g
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!