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
o-na [289]
3 years ago
13

Friction is the __ __ __ __ __ between two __ __ __ __ __ __ __ __ objects. It can __ __ __ __ things down or make things stand

__ __ __ __ __ .
Physics
1 answer:
abruzzese [7]3 years ago
5 0

Answer:

force ; connected ; slow ; slipping.

Explanation:

Friction is the force that occurs when two objects are in contact and they oppose relative motion of the two surfaces. The frictional forces always tries to oppose the relative motion between two objects. It makes the things to move slowly or slow down the speed by opposing its relative motion. It avoids slipping of any objects which makes objects stands slipping.

You might be interested in
When a 2.60-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 2.86 cm. (a) W
Goryan [66]

Answer:

a)  k = 891.82 N/m

b) e = 0.0143 m = 1.43 cm

c) W = 5.02 J

Explanation:

Step 1: Data given

Mass = 2.60 kg

the spring stretches 2.86 cm = 0.0286

Step 2: What is the force constant of the spring?

Force constant, k = force applied / extension produced  

k = (2.60kg * 9.81N/kg) / 0.0326 m

k = 891.82 N/m

b)  If the 2.60-kg object is removed, how far will the spring stretch if a 1.30-kg block is hung on it

Extension = F/k = (1.30 kg * 9.81) / 891.82 =  0.0143 m = 1.43 cm

Half the mass means half the extension

c) How much work must an external agent do to stretch the same spring 7.50 cm from its unstretched position?

W = average force used * distance

W = 1/2 * k*e * e = 1/2 k*e²  

W = 1/2 * 891.82 * (0.075)² = W = 5.02 J

5 0
3 years ago
What is 74000000 in scientific notation
bekas [8.4K]
It is 7.4x(10 to the power of 7)
3 0
3 years ago
If 32g of kerosene of densities of 0.80gcm-3 are mixed with 8g of water, what is the densities of the resulting
kvasek [131]

Answer:

volume = 8 cm^3 + 32 g / 0.8 g/ cm^3 = 48 cm^3

mass = 32 + 8 = 40 g

40 g / 48 cm^3

Explanation:

4 0
3 years ago
3. The car's mass is 400 kg. It moves at a velocity of 20 m/s. Calculate the car's momentum. *
Orlov [11]

Answer:

momentum=mass×velocity

momentum =400kg×20m/s=8000kg.m/s

7 0
3 years ago
A girl moves quickly to the center of a spinning merry-go-round, traveling along the radius of the merry-go-round. Which of the
DochEvi [55]

Answer:

The angular speed of the system increases.

The moment of inertia of the system decreases.

Explanation:

As we know that the girl is going towards the center of the circle so here the moment of inertia of the girl is given as

I = mr^2

here we know that

r = position of the girl from the center of the disc

now we know that the girl is moving towards the center so its distance will continuously decreasing

So the moment of inertia of the girl will decrease

Now we know that that with respect to the center of the disc there is no torque on the disc + girl system

So here we can use angular momentum conservation

So we have

I\omega = constant

since moment of inertia is decreasing for the system

so angular speed will increase

3 0
4 years ago
Other questions:
  • What is the function of the commutator in a DC motor? to spin the magnet to change direct current into alternating current to ch
    8·1 answer
  • A large asteroid of mass 33900 kg is at rest far away from any planets or stars. A much smaller asteroid, of mass 610 kg, is in
    10·1 answer
  • 60 POINTS SO PLEASE HELP ME To add vectors in a straight line ______________ and ______________ are considered positive directio
    6·1 answer
  • A neon sign that requires a voltage of 11,000 v is plugged into a 120-v wall outlet. what turns ratio (secondary/primary) must a
    6·1 answer
  • Desde una altura de 120 m se deja caer un cuerpo. Calcular a los 2,5 s i) la rapidez que lleva; ii) cuánto ha descendido; iii) c
    13·1 answer
  • Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec
    5·1 answer
  • Please Help!!!!!!!!!!!! (physics)​
    6·1 answer
  • Metals allow electrons to flow through and complete the circuit. Therefore they are called?
    8·1 answer
  • Need help with this!!! <br> 15 points!!!!
    13·1 answer
  • Join meet esqurzykgp bahahahah
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!