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
Luda [366]
2 years ago
6

Which method best helps to prevent wind erosion?

Physics
2 answers:
docker41 [41]2 years ago
7 0

Answer:

A. rotating crops

Explanation:

amm18122 years ago
6 0

Answer:

A. Rotating Crops

Explanation:

Just took the test lets go

You might be interested in
A pitcher can throw a fastball that reaches home plate at 95 mph. What is this speed in m/s
Taya2010 [7]
42.47 meters per second
5 0
3 years ago
I am struggling on this physics question. Brainly is my last hope. Could somebody please provide an answer to this question, wit
Aleks [24]

1) 29.4 N

The force of gravity between two objects is given by:

F=G\frac{Mm}{r^2}

where

G is the gravitational constant

M and m are the masses of the two objects

r is the separation between the centres of mass of the two objects

In this problem, we have

M=5.97\cdot 10^{24} kg (mass of the Earth)

m=3.0 kg (mass of the box)

r=R=6.37\cdot 10^6 m (Earth's radius, which is also the distance between the centres of mass of the two objects, since the box is located at Earth's surface)

Substituting into the equation, we find F:

F=\frac{(6.67\cdot 10^{-11})(5.97\cdot 10^{24})(3.0)}{(6.37\cdot 10^6)^2}=29.4 N

2) g=9.8 m/s^2

Let's now calculate the ratio F/m. We have:

F = 29.4 N

m = 3.0 kg

Subsituting, we find

\frac{F}{m}=\frac{29.4}{3.0}=9.8 N/kg = 9.8 m/s^2

This is called acceleration of gravity, and it is the acceleration at which every object falls near the Earth's surface. It is indicated with the symbol g.

We can prove that this is the acceleration of the object: in fact, according to Newton's second law,

F=ma

where a is the acceleration of the object. Re-arranging,

a=\frac{F}{m}

which is exactly equal to the quantity we have calculated above.

5 0
3 years ago
An elevator provides 21 000 w of power during a 12 s ride. how much work does the elevator do?
Mice21 [21]

Answer:

252000 J

Explanation:

W = Pt

W = (21000 w)(12 s)

W =252000 J

4 0
2 years ago
What is the velocity of a worm moving 1 meter in 2 hours to the East?
malfutka [58]

Answer:

Velocity = 0.0001389 m/s

Explanation:

Given that the

Distance covered = 1 metre

Time taken = 2 hours

Convert the hour to second

1 hour = 60 × 60 = 3600

2 hours = 2 × 3600 = 7200

What is the velocity of a worm moving 1 meter in 2 hours to the East?

Velocity can be referred as speed.

Velocity = distance/ time

Velocity = 1/7200

Velocity = 0.0001389 m/s

3 0
3 years ago
The special theory of relativity deals with space and time under what special condition?
sergij07 [2.7K]
<h2>Answer: Invariance of the speed of light in vacuum  </h2>

Special relativity was proposed on 1905 by Einstein, who developed his theory based on the following two postulates:  

<em>1. The laws of physics are the same in all inertial systems. There is no preferential system.  </em>

<em>2. The speed of light in vacuum has the same value for all inertial systems.  </em>

<em></em>

Focusing on the first postulate, it can be affirmed that any measurement on a body is made with reference to the system in which it is being measured.

 

In addition, it deals with the <u>dilation of time</u> stating that <u>time passes at different rates in regions of different gravitational potential</u>. That is, the greater the local distortion of space-time due to gravity, the slower the time passes.  

On the other hand, following what relativity establishes, bodies within a gravitational field follow a curved space path.  

7 0
3 years ago
Other questions:
  • It is known that birds can detect the earth's magnetic field, but the mechanism of how they do this is not known. It has been su
    9·1 answer
  • Complete combustion of 1.0 metric ton of coal (assuming pure carbon) to gaseous carbon dioxide releases 3.3 x 1010 j of heat. co
    10·1 answer
  • A battery has an emf of 15.0 V. The terminal voltage of the battery is 12.2 V when it is delivering 14.0 W of power to an extern
    10·1 answer
  • How many amps are there in the current of a circuit if the voltage source is 140v and the resistance is 2 ohms?
    5·1 answer
  • 12. What does positive and negative acceleration indicate?
    6·1 answer
  • What is an object's change in position, or displacement, and the change in time over which that displacement occurred used to ca
    8·1 answer
  • It took 1700 J of work to stretch a spring from its natural length of 2m to a length of 5m. Find the spring's force constant.
    9·2 answers
  • What are three biotic factors that can affect an organism after death?
    6·2 answers
  • 1. Identify Which of the following is not a factor of global climate change:
    15·1 answer
  • Advantages of writing very large and very small numbers in the terms of power of ten​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!