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
evablogger [386]
2 years ago
10

ΑΣ Sign A. keeping everything grounded on Earth. C. planes not being able to fly into space. B. making tall skyscrapers safe, D.

showing us the stars on a dark night. 2. The Earth's gravity is very important to our lives, but so is the gravity of the sun and the moon. The moon's gravity pulls on the ocean and makes the tides rise and fall . The sun's gravity pulls on the Earth and makes sure our planet doesn't go flying out into space. The sun's gravity keeps all the planets spinning around it, and the Earth's gravity keeps the moon close by. Which of the following best describes how the moon and Earth affect one another? A. The moon's gravity keeps Earth in place, B. The moon's gravity keeps the Earth close and the Earth's gravity affects the tides on by, and the Earth's gravity changes the the moon. moon's orbit. C. The moon's gravity creates tides on Earth, D. The moon's gravity creates earthquakes, and the Earth's gravity keeps the moon in and the Earth's gravity creates place. moonquakes. Vom miatt not be able to dun zahaczatball on Earth but vaunrabably could on the mean Why? There is​

Physics
2 answers:
algol132 years ago
5 0

Answer:

Go with C!

Explanation:

:)

stepladder [879]2 years ago
3 0

Answer:

i think that it is c because it not only tells us about what the moon does to the earth it also tells us what the earth does to the moon.

Explanation:

You might be interested in
a fan acquires a speed of 180 rpm in 4s, starting from rest. calculate the speed of the fan at the end of the 5th second startin
KengaRu [80]

Answer:

225 rpm

Explanation:

The angular acceleration of the fan is given by:

\alpha = \frac{\omega_f - \omega_i}{\Delta t}

where

\omega_f is the final angular speed

\omega_i is the initial angular speed

\Delta t is the time interval

For the fan in this problem,

\omega_i = 0\\\omega_f = 180 rpm\\\Delta t=4 s

Substituting,

\alpha = \frac{180-0}{4}=45 rpm/s

Now we can find the angular speed of the fan at the end of the 5th second, so after t = 5 s. It is given by:

\omega' = \omega_i + \alpha t

where

\omega_i = 0\\\alpha = 45 rpm/s\\t = 5 s

Substituting,

\omega' = 0 + (45)(5)=225 rpm

7 0
2 years ago
A 0.547 kg pizza is thrown straight up in the air. At a height of 2.30 m above the surface of the earth it has a speed of 5.00 m
natima [27]

Answer:

The total mechanical energy of the pizza crust is 19.2 J.

Explanation:

Mechanical energy is that which a body or a system obtains as a result of the speed of its movement or its specific position, and which is capable of producing mechanical work. Then:

Potential energy + kinetic energy = total mechanical energy

Kinetic energy is a form of energy. It is defined as the energy associated with bodies that are in motion and this energy depends on the mass and speed of the body.

Kinetic energy is defined as the amount of work necessary to accelerate a body of a certain mass and in a position of rest, until it reaches a certain speed.

Kinetic energy is represented by the following formula:

Ec = ½ *m*v²

Where Ec is kinetic energy, which is measured in Joules (J), m is mass measured in kilograms (kg), and v is velocity measured in meters over seconds (m / s).

In this case:

  • m=0.547 kg
  • v= 5 m/s

Replacing:

Ec = ½ *0.547 kg*(5 m/s)²

and solving you get:

Ec= 6.8375 J

On the other hand, potential energy is the energy that measures the ability of a system to perform work based on its position. In other words, this is the energy that a body has at a certain height above the ground.

Gravitational potential energy is the energy associated with the gravitational force. This will depend on the relative height of an object to some reference point, the mass, and the force of gravity. Then for an object with mass m, at height h, the expression applied to the gravitational energy of the object is:

Ep = m*g*h

Where Ep is the potential energy in joules (J), m is the mass in kilograms (kg) is h the height in meters (m) and g is the acceleration of fall in m / s² (approximately 9.81 m/s²)

In this case:

  • m= 0.547 kg
  • g= 9.81 m/s²
  • h= 2.30 m

Replacing

Ep= 0.547 kg *9.81 m/s²* 2.30 m

and solving you get:

Ep= 12.342 J

So:

Total mechanical energy= 12.342 J + 6.8375 J

Total mechanical energy= 19.1795 J≅ 19.2 J

<u><em>The total mechanical energy of the pizza crust is 19.2 J.</em></u>

6 0
3 years ago
For the circuit shown in (Figure 1), find the potential difference between points a and b. Each resistor has
Lynna [10]

The potential difference between points a and b is zero.

<h3>Total emf of the series circuit</h3>

The total emf in the circuit is the sum of all the emf in the circuit.

emf(total) = 1.5 + 1.5 = 3.0 V

<h3>Potential difference</h3>

The potential difference between two points, a and b is calculated as follows;

V(ab) = Va - Vb

V(ab) = 1.5 - 1.5

V(ab) = 0

Thus, the potential difference between points a and b is zero.

Learn more about potential difference here: brainly.com/question/3406867

3 0
2 years ago
Which of these objects has kinetic energy?
Damm [24]

Answer:

A ball moving through the air.

Explanation:

The ball has momentum which is a form of kinetic energy.

I don't know if that is correct, but I hope it helps!!!!

3 0
3 years ago
Read 2 more answers
What charge do electrons have?<br>Negative<br>Positive<br>Neutral​
hoa [83]

Answer electrons are negative. Protons are positive, and neutrons are neutral

8 0
2 years ago
Other questions:
  • The distance from one compression in a sound wave to the next compression is defined as the __________.
    10·1 answer
  • When was the first electric typewriter produced and by what company
    5·1 answer
  • When a 25000-kg fighter airplane lands on the deck of the aircraft carrier, the carrier sinks 0.23cm deeper into the water.
    5·1 answer
  • If a car is traveling at an average speed of 60 kilometers per hour, how long does it take to travel 12 kilometers?
    12·1 answer
  • What is the formula for average velocity?
    12·1 answer
  • why do signs at petrol stations warn people not to use cell phones while filling the petrol in their cars?​
    9·1 answer
  • The apple became weightless when it fell...
    14·2 answers
  • A physics teacher is designing a ballistics event for a science competition. The ceiling is 3.00m high, and the maximum velocity
    12·1 answer
  • A charge of 1. 5 µC is placed on the plates of a parallel plate capacitor. The change in voltage across the plates is 36 V. How
    5·1 answer
  • A 190 mH inductor is connected to an emf given by
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!