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
allsm [11]
2 years ago
9

If the seafloor is spreading why isn't earth getting bigger?

Physics
1 answer:
tatyana61 [14]2 years ago
7 0
Well there are areas of the seafloor that are spreading due to tectonic plates moving apart but there are also places where these plates meet and one slides under the other (subduction zones) as a result, the earth is not getting bigger since these two actions cancel each other out.<span>
</span>
You might be interested in
For how long a time must a tow truck pull with a force of 550N on a stalled 1200kg car to give it a forward velocity of 2.0m/s?
horsena [70]

Answer:

4.36 seconds

Explanation:

According to the question;

  • Force is 550 N
  • Mass of the car is 1200 kg
  • Velocity of the car is 2.0 m/s

We are needed to find the time the car must the tow track pull the car.

  • From Newton's second law of motion;
  • Impulsive force, F = Mv÷t , where m is the mass, v is the velocity and t is the time.

Rearranging the formula;

t = mv ÷ F

Thus;

Time = (1200 kg × 2.0 m/s²) ÷ 550 N

        = 4.36 seconds

Thus, the time needed to pull the car is 4.36 seconds

5 0
3 years ago
Birdman is flying horizontally at a
den301095 [7]

Answer:

68 m

Explanation:

Given that the horizontal velocity of the birdman = 17 m/s and

the height, h= 78 m.

The gravitational force is acting in the downward direction, so it will not change the horizontal speed.

The horizontal speed will remains be constant and will be equal to the initial horizontal speed of the turd.

Initially, the turd was also flying horizontally with the birdman, so the initial velocity of the turd is the same as the horizontal velocity of the birdman, i.e In the horizontal direction, u_0=17 m/s.

In the vertical direction, u = 0,

The distance to be traveled, in the direction of application of force, is equals to the height of the turd, i.e

s= 78 m

Let t be the time taken to cover a distance of 78 m.

Now, applying the equation of motion in the vertical direction,

s=ut+\frac 12 at^2

where u is the initial velocity and a is the acceleration due to gravity in the direction of displacement,s.

Here, a=g=9.81 m/s^2, so

78=0\times t +\frac 12 (9.81)t^2

\Rightarrow t^2=(78\times2)/9.81

\Rightarrow t = 4 seconds.

Hence, the time taken to reach the ground is 4 seconds.

As the horizontal speed, u_0=17 m/s, is constant throughout the journey, so

the horizontal distance covered by turd

= u\times t

= 17 \times 4 = 68 m.

So, the distance of landing from the start of the field is 68 m as the birdman releases a turd directly  above the start of the field.

Hence, the robot must hold the bucket at a distance of 68 m from the start of the field.

5 0
3 years ago
ACUTE INFECTION plz help worth 70 pt plz help !!!!! Also brainlest
Paraphin [41]

Answer:

Simple awnser Do it yourself I really would help but I have no clue! Sorry

Explanation:

3 0
3 years ago
Hurricane or typhoons occur when large areas of the open ocean soak up heat from the sun t or f​
11Alexandr11 [23.1K]

Answer: true

Explanation:

3 0
2 years ago
Why would a landslide be more likely on a steep mountain than on a gently sloping hill?
Serjik [45]
Steep mountain, due to gravity.
4 0
3 years ago
Read 2 more answers
Other questions:
  • According to the second law of thermodynamics, when energy changes occur, _______ increases. question 2 options:
    8·1 answer
  • Is<br>pressure<br>and<br>electric<br>charge<br>a vector<br>quantity? Explain.​
    5·1 answer
  • Suppose you wind a wire with a current into a coil. How have you changed the wire’s magnetic field?
    8·1 answer
  • Zack is driving past his house. He wants to toss his physics book out the window and have it land in his driveway. If he lets go
    11·1 answer
  • A ball is thrown with a velocity of 35 meters per second at an angle of 30° above the horizontal. which quantity has a magnitude
    7·1 answer
  • Two difference between far point and near point​
    9·1 answer
  • I was reading an old thermodynamics textbook and came across this equation describing change in internal energy. What does the (
    12·1 answer
  • Which of the following statements is true?
    10·1 answer
  • Gaya adalah...?? [tolong yaaa..]
    9·1 answer
  • Which statement best defines work? (2 points) Group of answer choices
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!