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ira [324]
3 years ago
9

B. What information did Wegener not have that would have strengthened his argument? (3

Physics
1 answer:
VMariaS [17]3 years ago
4 0
<h2>Movement of Continents</h2>

Explanation:

  • Alfred Wegener was a German astronomer who proposed the "continental drift" hypothesis in 1910.
  • Alfred Wegener was not able to explain the movements of the continent in how and in which way they are moved.
  • He failed in an attempt to explain with the use of tides made the theory undefinable fully.
  • Also, the major problem with Wegener's theory of Continental Drift was that there was no proper explanation of a mechanism.
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Dark matter has been detected by its
Zinaida [17]
Dark matter has been detected by its gravitational pull.
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3 years ago
The centripetal force acting on a moon in a circular orbit around a planet continuously changes the _____ of the moon's motion.
boyakko [2]
Direction because if you're moving in a circle the direction is constantly changing
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3 years ago
A 92.0-kg skydiver falls straight downward with an open parachute through a vertical height of 325 m. The skydiver’s velocity re
Alborosie

Answer:

The work done is 293.0kJ

Explanation:

<u>Data</u>

  • Mass:   m=92.0kg
  • height:    h=325m
  • acceleration due to gravity:  g=9.81m/s^{2}

Non conservative force act

The work is:

W=ΔKE+ΔPE

KE and PE means kinetic energy and potential energy respectively.

The change in kinetic energy is 0, since the skydiver’s velocity remains constant.

Therefore

W=0+ΔPE

W=ΔPE

W=mgh

substitute the values

W=92.0kg*9.81m/s^{2} *325m\\W=293020J\\W=293.0kJ

5 0
3 years ago
Position vs Time
hodyreva [135]

That was pretty clever, how you neatly and cleanly cut off the part of the photo that shows the formula we're supposed to use.

At time=0, the position is zero, and at time=5 sec, the position is 20 m.

Slope = (change in position)/(change in time)

Slope = (20m - 0m) / (5s - 0s)

Slope = (20m) / (5s)

<em>Slope = 4 m/s</em>

5 0
3 years ago
Read 2 more answers
5) A box weighing 75 N rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from t
ziro4ka [17]

Answer:

(b) 90 N.

sorry if i'm wrong thank you

3 0
2 years ago
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