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
Ber [7]
3 years ago
9

Science help? 50 POINTS!

Physics
2 answers:
RUDIKE [14]3 years ago
7 0
1. Volcanoes and minor earthquakes

2. Volcanoes, earthquakes and fold mountains.

3. Earthquakes and fold mountains.

4. Magma from volcanoes is filled with nutrients that makes land fertile.


Good luck! 
masya89 [10]3 years ago
6 0
Volcanoes and minor earthquakes
Volcanoes, earthquakes and fold mountains.
Earthquakes and fold mountains.
Magma from volcanoes is filled with nutrients that makes land fertile.
You might be interested in
Which change to a circuit is most likely to decrease its electrical power?
Harlamova29_29 [7]

Answer:

It's D

Explanation:

8 0
2 years ago
Read 2 more answers
An object of mass m is traveling on a horizontal surface. There is a coefficient of kinetic friction  between the object and th
Gnom [1K]

Answer:

8m * (μg/v)^2

Explanation:

k, the spring constant = ?

(k in terms of μ, m, g, and v.)

Frictional force = μmg

Note: lost KE is converted to work done against the friction + PE of the spring

1/2mv2 = μmgx + 1/2kx^2....equation i

Cancel the 1/2 on both sides

mv^2 = μmgx + kx^2

Lets recall that:

Due to frictional effect, further enegy will be lost when the spring recoils backward

Therefore

1/2kx^2 = μmgx..... equation ii

Let's substitute 1/2kx^2 in equation I for ii

So we can say that:

1/2mv^2 = (μmgx)+ μmgx

1/2mv^2 = 2 (μmgx)

1/4mv^2 = μmgx

Cancel out m on both sides

1/4v^2 = μgx

Make x subject of the formula

x = (1/4v^2) / (μg)...... equation iii

substitute x to equation ii

But first make k in equation ii subject of the formula

1/2kx^2 = μmgx

k = 2μmg/x

Now substitute x

k = 2μmg / ((1/4v^2) / (μg))

k = 2μmg * ((μg) / (1/4v^2))

k = 8m * (μg/v)^2

8m * (μg/v)^2

7 0
3 years ago
How is power defined? Question 4 options: the quantity of work accomplished the direction of the work the total distance an obje
GarryVolchara [31]

Power can be defined as the rate at which work is accomplished.

Option D is the correct answer.

<h3></h3><h3>Power </h3>

The work done by an object in a given time interval is called the power of that object.

Suppose an external force F is applied to any object for the time interval T seconds. Due to this external force, the object will perform some amount of work for the time T seconds. This work W done by the object for the time interval T seconds is called the power of that object.

Power can be defined in mathematical term which is given below.

P = \dfrac {W}{T} \;\rm Watts

Thus the power can also be defined as the work done by the object per unit time interval.

Hence we can conclude that option D is the correct answer.

To know more about power, follow the link given below.

brainly.com/question/1618040.

8 0
2 years ago
How is the frequency of sound measured? <br><br><br> answer asap!!
VladimirAG [237]

Answer: hertz (Hz) i think :)

3 0
3 years ago
Scientific theories are explanations for naturally occurring events or phenomena. Although scientific theories require extensive
Arada [10]
The answer should be B) Scientific theories and laws develop from the acquisition of scientific knowledge. Hope this helps you.
3 0
3 years ago
Read 2 more answers
Other questions:
  • A man of mass M stands on a railroad car that is rounding an unbanked turn of radius R at speed v. His center of mass is height
    8·1 answer
  • a light wave travels at 3.0 x 10^8 m/s. if the wavelength of a red wave is 700 x 10^-9m, what is the frequency?
    8·1 answer
  • Can someone please explain to me what in the hell this asking?
    13·1 answer
  • A box has a length of 20.0 cm, a width of 25.0 cm and its 30 cm tall. What is its volume using correct significant figures
    7·1 answer
  • Tp-18 what should you do when operating a boat in large waves and high wind?
    11·1 answer
  • Which section (A or B) of the roller coaster shows positive acceleration?
    14·2 answers
  • I need help with the blanks
    9·1 answer
  • What is wheel. and axle? Explain its structure with the help of a diagram​
    5·1 answer
  • This is an image of a satellite traveling around Earth. Explain what are the two forces that are keeping the satelite around Ear
    9·1 answer
  • Which of the following affects the rate constant of a reaction?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!