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
alexdok [17]
2 years ago
9

when an object falls to the ground, only the object moves down but the earth's motion is not noticeable​.why?

Physics
1 answer:
vlada-n [284]2 years ago
7 0
Both the object and earth pulls each other towards itself but since the mass and pulling force of objects are very small the pulling force of objects are negligible.
You might be interested in
A 22.0 kg child slides down a slide that makes a 37.0° angle with the horizontal. (a) What is the magnitude of the normal force
patriot [66]

Answer:

(a) 172.185 N

(b) 53^{\circ}

Solution:

As per the question:

Mass of the child, m = 22.0 kg

Angle, \theta = 37.0^{\circ}

Now,

(a) The magnitude of the normal force exerted by the slide on the child:

F_{N} = mgcos\theta

F_{N} = 22\times 9.8cos37^{\circ} = 172.185\ N

Now,

(b) The angle from the horizontal at which the force is directed is:

90^{\circ} - 37^{\circ} = 53^{\circ}

6 0
3 years ago
An electric light is plugged into a 120-V outlet. If the current in the bulb is 0.50 A, how much electrical energy does the bulb
ioda

Answer:

= 54,000 Joules or 54 kJ

Explanation:

Electrical energy is given by the formula;

E = VIt; where V is the potential difference in volts, I is the current and t is the time in seconds.

Therefore;

Electrical energy = 120 V × 0.50 A × 15 ×60 seconds

                            = 54,000 Joules

Thus; the electrical energy is 54,000 joules or 54 kJ

7 0
3 years ago
Which characteristic would you expect from a sample with a pH of 9
Verizon [17]
I would expect it to be slightly basic.
7 0
3 years ago
What do you need to know to establish motion
avanturin [10]

Answer:

An object is in motion if it changes position relative to a reference point.

Explanation:

7 0
2 years ago
Since friction is a force,<br> what unit is friction<br> measured In???
dimaraw [331]
It would be measured in newtons :)
4 0
2 years ago
Read 2 more answers
Other questions:
  • As light waves enter the eye, which three structures do they pass through first?
    15·1 answer
  • Which of these statements expresses a key assumption in our most successful models for galaxy formation?
    11·1 answer
  • The chemical formula for sulfuric acid is H2SO4.
    10·2 answers
  • A roller coaster car crosses the top of a circular loop-the-loop at twice the critical speed. Part A What is the ratio of the no
    9·1 answer
  • How many mean free paths thick must a shield be designed in order to attenuate an incident neutron beam by a factor of 1000?
    6·1 answer
  • 20 points
    12·1 answer
  • Which phenomena support only the particle theory of light? Check all that apply.
    10·1 answer
  • What is true about the atom? Select all that are correct.
    14·1 answer
  • What happens to the particles of a liquid when energy is removed from them?
    7·2 answers
  • If a person attempts to read their e-mail while they are riding the bus, they are _______.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!