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
irina1246 [14]
2 years ago
15

Which factors affect friction between two solid surfaces?

Physics
2 answers:
a_sh-v [17]2 years ago
6 0
1) newton of the surfaces in contact (the smoothness of the surfaces)

2) how hard the surfaces press together
Nookie1986 [14]2 years ago
3 0

Answer:1. The weight of the object

2. The roughness of the objects’ surfaces

Explanation:

You might be interested in
It is recommended that adults should get at least 150 minutes of moderate-intensity physical activity each week. they should als
shepuryov [24]
I think it's three days. I read it in assignment potion before but it's kinds fuzzy but I believe it's three days. Hopefully thats correct.
4 0
3 years ago
Write<br>any<br>to increase<br>magnitude of current in dynamo​
Svetach [21]

Answer:

Explanation:

It can be increased by: increasing the rate of rotation. Increasing the strength of the magnetic field. Increasing the number of turns on the coil.

Hope this helps

plz mark it as brainliest!!!!!!

4 0
2 years ago
How does the law of conservation of energy relate to the system shown in this model
egoroff_w [7]

Answer: The law of conservation of energy is a physical law that states energy cannot be created or destroyed but may be changed from one form to another. Another way of stating this law of chemistry is to say the total energy of an isolated system.

Explanation:

3 0
2 years ago
Read 2 more answers
An observer on Earth sees rocket 1 leave Earth and travel toward Planet X at 0.3c. The observer on Earth also sees that Planet X
Verizon [17]

Answer:

0.625 c

Explanation:

Relative speed of a body may be defined as the speed of one body with respect to some other or the speed of one body in comparison to the speed of second body.

In the context,

The relative speed of body 2 with respect to body 1 can be expressed as :

$u'=\frac{u-v}{1-\frac{uv}{c^2}}$

Speed of rocket 1 with respect to rocket 2 :

$u' = \frac{0.4 c- (-0.3 c)}{1-\frac{(0.4 c)(-0.3 c)}{c^2}}$

$u' = \frac{0.7 c}{1.12}$

u'=0.625 c

Therefore, the speed of rocket 1 according to an observer on rocket 2 is 0.625 c

5 0
3 years ago
A 1250 kg car, driving 7.39 m/s, runs into the back of a stationary 5380 kg truck. After the collision, the truck moves forward
Leno4ka [110]

Explanation:

Given that,

Mass of the car, m₁ = 1250 kg

Initial speed of the car, u₁ = 7.39 m/s

Mass of the truck, m₂ = 5380 kg

It is stationary, u₂ = 0

Final speed of the truck, v₂ = 2.3 m/s

Let v₁ is the final velocity of the car. Using the conservation of momentum as :

m_1u_1+m_2u_2=m_1v_1+m_2v_2

1250\times 7.39+5380\times 0=1250\times v_1+5380\times 2.3

v_1=-2.5\ m/s

So, the final velocity of the car is 2.5 m/s but in opposite direction. Hence, this is the required solution.

3 0
3 years ago
Other questions:
  • A certain material has a high melting point and is malleable and shiny. It is most likely a _____.
    6·2 answers
  • Explain how the velocity of an object changes in respect to time.
    11·2 answers
  • Your average speed on the first half of a car trip is 69.0 km/h. How fast do you have to drive on the second half of the trip to
    11·1 answer
  • An accelerating voltage
    6·1 answer
  • Which of the following
    10·1 answer
  • Hi = L(1 – cos theta), theta = 40
    12·1 answer
  • Question 9 of 20
    10·1 answer
  • The net external force on the propeller of a 3.8 kg model airplane is 8.2 N forward.
    13·1 answer
  • Calculate the magnitude of the gravitational force
    6·1 answer
  • A solid sphere rolls along a horizontal, smooth surface at a constant linear speed without slipping. What is the ratio between t
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!