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
alisha [4.7K]
3 years ago
5

Kelly sits on a rock. Her weight is an action force. What is the reaction force?

Physics
1 answer:
Dmitrij [34]3 years ago
4 0
The force ffrom the ground that holds the rock up and prevents her from falling through the gound, unless the ground breaks.
You might be interested in
What type of infant temperament is generally associated with better adjustment in adulthood?
Rashid [163]
Saying no and not throwing fits and manners.
8 0
2 years ago
A rock is launched at angle theta=53.2∘ above the horizontal from an altitude of ℎ=182 km with an initial speed ????0=1.61 km/s.
Mariulka [41]

Answer:

The rock's final speed at the required altitude will be 42.24 m/s.

Explanation:

Let's start by finding the initial vertical speed.

Vertical Speed = 1.61 * Sin (53.2°)

Vertical Speed = 0.8 m/s

We want to know the speed of the rock when it is at an altitude of 91 km.

The total displacement of the rock from its starting position will thus be equal to -91 km

We can use this in the following equation:

s=u*t+\frac{1}{2} (a*t^2)

-91=0.8*t+\frac{1}{2} (-9.8*t^2)

t = 4.3918 seconds

Thus it takes 4.3918 seconds to reach the required altitude. We can now find the speed as follows:

V=U+at

V=0.8+(-9.8)*(4.3918)

V = -42.24

Thus the rock's final speed at the required altitude will be 42.24 m/s.

8 0
3 years ago
Read 2 more answers
a sponge and a bar of soap occupy the same amount of space, but the soap is much more dense than the sponge
Alex Ar [27]
Yes, that's correct.  That's a big part of the reason why
the soap floats in water and the sponge sinks in it.

4 0
3 years ago
Read 2 more answers
What type of galaxy is this?
stiks02 [169]

Answer:

Barred Spiral.

8 0
2 years ago
What does democratized knowledge mean?
lutik1710 [3]
I think it’s A I got that off the information I got in the internet
8 0
2 years ago
Read 2 more answers
Other questions:
  • In the equation for Ohm’s law what does I stand for?
    5·1 answer
  • For a maximum superelevation of 0.08 ft/ft and a degree of curve of 4o, calculate the maximum safe speed for the curve assuming
    10·1 answer
  • Two particles oscillate in simple harmonic motion along a common straight-line segment of length 1.0 m. Each particle has a peri
    13·1 answer
  • Eight joules of work is required to stretch a spring 0.5 meter from its natural length. Find the work required to stretch the sp
    14·1 answer
  • I have increased the amplitude or a wave, does that make it louder or higher pitched?
    13·2 answers
  • Three parallel wires of length l each carry current Iin the same direction. They’re positioned at the vertices of an equilateral
    8·2 answers
  • What is necessary to designate a position? A. a reference point B. a direction C. fundamental units D. motion E. all of these
    15·1 answer
  • If your weight is force created by gravity on your body, and therefore is the Earth pulling you down, what is the reaction force
    6·1 answer
  • How does Static Electricity happen? Please provide 3 Real Life Examples of Electro Static Electricity.
    5·1 answer
  • In which situation would alley cropping be most useful for sustainable farming?(1 point)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!