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
antoniya [11.8K]
3 years ago
14

Friction occurs when the and of two surfaces stick to each other

Physics
2 answers:
Lilit [14]3 years ago
7 0
Friction occurs when the end of two surfaces stick to each other. Yes correct
Misha Larkins [42]3 years ago
3 0

Answer:

yes, kinda like when babies are made, there is friction

Explanation:

You might be interested in
A projectile is fired over level ground with an initial velocity that has a vertical component of 20 m/s and a horizontal compon
Anettt [7]
First of all, let's write the equation of motions on both horizontal (x) and vertical (y) axis. It's a uniform motion on the x-axis, with constant speed v_x=30 m/s, and an accelerated motion on the y-axis, with initial speed v_y=20 m/s and acceleration g=9.81 m/s^2:
S_x(t)=v_xt
S_y(t)=v_y t- \frac{1}{2} gt^2
where the negative sign in front of g means the acceleration points towards negative direction of y-axis (downward).

To find the distance from the landing point, we should find first the time at which the projectile hits the ground. This can be found by requiring
S_y(t)=0
Therefore:
v_y t -  \frac{1}{2}gt^2=0
which has two solutions:
t=0 is the time of the beginning of the motion,
t= \frac{2 v_y}{g} = \frac{2\cdot 20 m/s}{9.81 m/s^2}=4.08 s is the time at which the projectile hits the ground.

Now, we can find the distance covered on the horizontal axis during this time, and this is the distance from launching to landing point:
S_x(4.08 s)=v_x t=(30 m/s)(4.08 s)=122.4 m
4 0
3 years ago
Which of the following statements are true of thermal energy and kinetic
Elis [28]

Answer:

a

all the molecules or atoms in motion has kinetic energy

4 0
1 year ago
What is a gas giant?
julia-pushkina [17]

Answer:

A gas giant is a huge planet made of gases primarily hydrogen and helium. These gas giant planets include Jupiter, Saturn, Uranus, and Neptune.

4 0
3 years ago
A 0.50-kg object moves in a horizontal circular track with a radius of 2.5 m. An external forceof 3.0 N, always tangent to the t
kodGreya [7K]

The work done by the force is 47.1 J

Explanation:

The work done by a force in moving an object is given by

W=Fd cos \theta (1)

where

F is the magnitude of the force

d is the distance covered by the object

\theta is the angle between the direction of the force and the motion of the object

In this problem, the force applied to the object is

F = 3.0 N

This force is always tangential to the track: this means that at every instant, the force is parallel to the motion of the object, so

\theta=0

And the distance covered is equal to the circumference of the circle, which is:

d=2\pi r=2\pi (2.5 m)=15.7 m

where r = 2.5 m is the radius.

Now we can substitute into eq.(1) to find the work done:

W=(3.0)(15.7)(cos 0)=47.1 J

Learn more about work:

brainly.com/question/6763771

brainly.com/question/6443626

#LearnwithBrainly

4 0
3 years ago
How does flowing water change the earths surface
Art [367]
Deposition occurs when gravity's downward pull on sediment is greater than the push of flowing water<span> or wind. Rivers and streams erode soil, rock, and sediment. Sediment is tiny grains of broken-down rock.</span>
3 0
3 years ago
Other questions:
  • If the current in this circuit is 3 A, what must be the value of R3?
    15·1 answer
  • How many unique values of x solve x2 + 4x + 4 = 0?
    14·1 answer
  • Molecules of two solid substances actually collide with each other to transfer energy in this method of heat transfer.
    11·2 answers
  • What happens to the gravitation force between two objects that are 15 m apart, when one of them moves 3 m closer?
    9·1 answer
  • How does you body reproduce
    13·1 answer
  • Se tienen 500g de alcohol etílico a una temperatura de -40 °C ¿Cuánto calor se necesita para transformarlo a vapor a una tempera
    7·1 answer
  • Which substance can be separated by physical means and it is not the same throughout.
    11·2 answers
  • An equinox occurs when _____.
    11·1 answer
  • 19. a) Name the type of Joint present in i) Neck ii) Shoulder b) Which of the skull bones are movable ?​
    14·1 answer
  • A father (75 kg) was standing watching TV, minding his own business when one of his kids (20 kg) approached him at 2m/s heading
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!