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
alina1380 [7]
2 years ago
6

Does a force cause motion or a change in motion

Physics
1 answer:
Brrunno [24]2 years ago
3 0
It changes the motion as Newton's second law of motion states that a force, acting on an object, will change its velocity by changing either its speed or its direction or both. If your basketball goes rolling into the street and is hit by a bike, either the ball will change direction or its speed or both.
You might be interested in
Earth's rotational axis completes one precession every _____.
ruslelena [56]

A). Earth completes one rotation on its rotation axis
every (3 minutes and 56 seconds less than 24 hours).
This causes night and day.  It's rotation, not precession.

B).  Earth completes one orbital revolution around the sun
every (365 plus a little bit) days.  It's revolution, not precession.

C).  I'm not sure what happens on a cycle of 512 years.
It may have something to do with the moon.  But whatever
it is, it's not precession.

D).  When you spin a top and it starts to run down, the first
thing that happens is that the handle of the top, or the point
on top of the top, starts moving in a circle.  That's precession.
That's what the Earth's axis is doing.  The north pole points
toward the north star (Polaris) now.  But the north pole is
actually drawing out a big circle in the sky, and other stars
will become the "north star" far in the future.
The north pole draws out a full circle in the sky, roughly
once every 26,000 years.  That's precession.

6 0
3 years ago
What causes light to bend when it moves from one transparent medium to another?
DedPeter [7]
Light<span> refracts whenever it </span>travels<span> at an angle into a substance with a </span>different<span>refractive index (optical density). This change of direction is </span>caused<span> by a change in speed. For example, when </span>light travels<span> from air into water, it slows down, causing it to continue to travel at a </span>different<span> angle or direction.</span>
4 0
3 years ago
Read 2 more answers
Consider a small child sliding down two differently shaped slides that have the same coefficient of kinetic friction. How must t
timama [110]

Answer:

Having a bigger angle above the horizontal

Explanation:

Applying the energy conservation theorem:

K_1+U_1+W_{ext}=K_2+U_2

The kinetic energy is reduced because of the work done by the friction force.

The friction force is given by:

F_f=F_N*\µ

so the friction force depends on the Normal force, because the slide has an angle the normal force is given by:

F_N=m.g*cos(\theta)

So when the angle of the slide is bigger, the friction force decreases, for example:

for 45 degrees:

F_N=m.g*cos(45)\\F_N=0.70(m.g)\\

for 75 degrees:

F_N=m.g*cos(75)\\F_N=0.26(m.g)\\

as you can see if the angle is bigger above the horizontal, the friction force is reduced and so the work done by that force. We didn't have to change the height of the slide, so the potential gravitational energy remains the same.

6 0
3 years ago
3. A bunny and a tortoise start a race from rest. The bunny accelerates at a rate ab for a time to until it reaches its
Aleks [24]

pa

heart

po

at

pa

follow

rin

sa

tiktok

Answer:

yan

ang

answer

7 0
2 years ago
according to Newton's third law what is the equal and opposite force to the downward force of gravity pulling on a man standing
Fudgin [204]

When you're talking about gravity, it's easy to identify the equal
opposite forces.

Gravity ALWAYS produces an equal pair of opposite forces. 
They both act between the centers of the two objects, one in
each direction.

Consider the equal pair of opposite gravitational forces between
you and the Earth.  One force acts on you, and draws you toward
the center of the Earth.  We call that force "your weight". 
The other one acts on the Earth, and draws it toward the center
of you.  Hardly anybody ever talks about that one, but the two
forces are equal ... your weight on Earth is equal to the Earth's
weight on you !

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the mass number of a potassium atom that has 20 neutrons
    5·1 answer
  • First sign of lung cancer
    6·2 answers
  • You are 2m from one audio speaker and 2.1m from another audio speaker. Both generate the identical sine wave with a frequency of
    6·1 answer
  • Why are sunlight and gravity not considered matter?
    5·2 answers
  • Help plsss i need #1
    14·1 answer
  • Two objects of different mass rest on earth. Which one experiences the greater acceleration due to gravity?
    10·1 answer
  • An ocean wave energy device moves up and down with the motion of an ocean wave. The device produces more energy if larger waves
    13·1 answer
  • Which equation will tell you the acceleration of the object?
    10·1 answer
  • The teacher measured the maximum height and the minimum height of the plastic duck above the screen as the wave passed. The teac
    15·1 answer
  • what is the frequency of the photon emitted by a hydrogen atom when its electron drops from the n = 6 to n = 4 energy level?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!