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
ser-zykov [4K]
3 years ago
11

if a 5-kg bowling ball is projected upward witha velocity of 2.0 m/s, then what is the recoil velocity of the Earth(mass=6.0×10^

24kg)
Physics
1 answer:
vitfil [10]3 years ago
3 0

by the concept of momentum conservation we can say

if net force on a system of mass is ZERO then its momentum will remain conserved

Here a ball is projected upwards so if we take Ball + Earth as a system then total momentum of the system will remain conserved

Initially when ball is on the surface of earth the system has zero momentum and hence we can say after throwing the ball momentum of earth + ball must be zero

now using same equation we can say

P_{ball} + P_{earth} = 0

m_1v_1 + m_2v_2= 0

given that

m_1 = 5 kg

v_1 = 2 m/s

m_2 = 6 * 10^{24} kg

from above equation velocity of earth will be

v_2 = \frac{m_1 v_1}{m_2}

v_2 = \frac{5*2}{6 * 10^{24}}

v_2 = 1.67 * 10^{-24} m/s

so above will be the recoil speed of earth

You might be interested in
Adding heat to a liquid causes which of the following physical changes?
SashulF [63]

In almost every case in nature, adding heat to a liquid
causes the density of the liquid to decrease.  That is,
when the liquid gets warmer, it expands and occupies
more space.

The one big exception to this rule is water ! 

Starting with a block of ice at zero°C (32°F), as the ice melts,
becomes water at zero°C, and all the way to 4°C (about 39°F),
its density increases all the way.   That is, it shrinks and occupies
less
volume as it goes from ice at zero°C to water at 4°C.

This sounds like an interesting but insignificant quirk ... until
you realize that if water didn't do this, then life on Earth would
be impossible ! 

8 0
3 years ago
HELP PLEASE
Ira Lisetskai [31]
The answer is magnet away from the coil
3 0
3 years ago
Read 2 more answers
How has globalization led to underdeveloped countries?
Readme [11.4K]

Answer: Economic growth is the main channel. Globalization can affect poverty. when countries open up to trade, they tend to grow faster and living standards do tend to increase.

Explanation: I hope this helps :)

5 0
2 years ago
I'm willing to give a lot of points if u can help me out.
Anettt [7]

Answer:

i have absolutly no idea how to do it but i looked it up and your answer should be B. i could be wrong but thats what the web told me

7 0
2 years ago
In which situation can you be at rest and moving at then same time
anyanavicka [17]

If you are stationary, but in/on a moving vehicle/object you can be at rest and moving at then same time.

<u>Explanation</u>:

  • A particle, when viewed from a given frame of reference, cannot be both at rest and in motion. However, in one frame of reference, a particle can be in motion whereas in another frame of reference the particle is in motion.
  • For example, if you are seated in a plane, the plane is stationary in that reference frame and the Earth moves under it, but in the reference frame of the Earth, the plane is moving concerning the Earth. When you are standing still on Earth, in your frame of reference, the Earth is stationary, and the Sun and stars move around the Earth.
  • However, in the frame of reference of the center of our solar system, the Earth orbits the Sun and the Sun are perturb slightly by the rest of the planets, but the rest of the galaxy orbits our solar system. Of course, in rest from our Galaxy, our solar system orbits a giant black hole at its center.
4 0
3 years ago
Other questions:
  • A piano has a mass of 185 kg, and the coefficient of friction between it and the floor is 0.39. What is the maximum force of fri
    8·2 answers
  • The universe is filled with photons left over from the Big Bang that today have an average energy of about 4.9 ✕10-4 (correspond
    12·1 answer
  • Perform an Internet search to learn about grounding wires, fuses, and circuit breakers. Specifically,
    11·1 answer
  • Which statement best describes the process that produced the ending populations of moths
    11·2 answers
  • The formula for Ohm’s law can be written: V equals <br><br> a. l x R<br> b. l/R<br> c. R/l
    15·1 answer
  • Why is object 2 accelerating while object 1 remains stationary?
    10·1 answer
  • Helloooooooooooo<br><br><br> A) HI<br><br> B) GO AWAY<br><br> C) BYE FELICIA<br><br> D) HELLO MATE
    13·1 answer
  • Which atomic particle has no charge?<br> A. Electron<br> B. Neutron<br> C. Nucleus <br> D. Proton
    14·2 answers
  • Complete the sentences to describe the difference between speed and velocity.
    10·1 answer
  • Draw and label a diagram of a pulley system with a velocity ratio of 5 ​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!