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3 years ago

What can geologist infer from the rounded and eroded shapes of the Appalachian Mountain

2 answers:

6 0

<span>The answer is D. mountains have been eroding for millions of years. The Appalachian Mountains is an older group of fold mountains. It is much older than the Himalays that do not exibit this rounded shape. As tectonic forces enable mountain building, forces of weathering, erosion and mass wasting are constantly eating away at them. </span>

yarga [219]3 years ago

3 0

D.the mountains have been eroding for millions of years

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within what force will acar hit a tree if the car has a mass of 3,000 kg and it is accelerating at a rate of 2 m/s/s

alexdok [17]

Use the formula. Plug in known values, so you get f = 3000*2 and get 6000N as a result.

7 0

3 years ago

What are 5 different ways to use a fidget spinner?

butalik [34]

Answer:

Balancing on one finger.

Tossing between hands.

Using a different body part.

Building a tower.

Throwing it high in the air.

Flipping it over.

Switching between fingers.

Going behind the back.

Explanation:

Just stuff I used to do ^^

5 0

3 years ago

The luxury liner Queen Elizabeth 2 has a diesel-electric powerplant with a maximum power of 84 MW at a cruising speed of 35.0 kn

frosja888 [35]

Answer:

$F = 4669.201\,kN$

Explanation:

Maximum speed is get at maximum power. Let assume that ship travels at constant speed, the expression for power is equal to:

$\dot W = F\cdot v$

Where $F$ and $v$ are the forward force and speed of ship measured in newtons and meters per second, respectively.

The forward force can be determined by clearing it in the expression described above:

$F = \frac{\dot W}{v}$

$F = \frac{84\times 10^{3}\,kW}{(35\,knots)\cdot \left(\frac{0.514\,\frac{m}{s} }{1\,knot} \right)}$

$F = 4669.201\,kN$

4 0

3 years ago

Read 2 more answers

The windshield of a speeding car hits a hovering insect. Consider the time interval from just before the car hits the insect to

HACTEHA [7]

Answer:

A. False

B True

C. False

D.False

E. True

F. False

G. False

H. False

I. True

Explanation:

A. False: The system being analyzed consists of the bug and the car. These are the two bodies involved in the collision.

B. True: The system being analyzed consists of the bug and the car

C. False: The magnitudes of the change in velocity are different from the car and the bug. The velocity of the bug changes from 0 to the velocity of the car, while there is no noticeable change in the velocity of the car

D.False: There is barely any change in the momentum of the car since the mass of the bug is very small.

E. True: Since the mass of the bug is small, and was initially at rest, the magnitude of the change in monentum will be large because the new velocity will be that of the car.

F. False: The system being analyzed consists of the bug and the car. Those are the two bodies involved in the collision

G. False: The car barely changes in velocity since the mass of the bug is small.

H. False: The car barely changes in momentum because the collision does not affect its speed so much. on the other hand the momentum change of the bug is large since its mass is small.

I. True: The bug which was initially at rest will begin moving with the velovity of the speeding car, while the car barely changes in its velocity

5 0

3 years ago

A cheetah runs at a constant velocity of 7 m/s. What is it’s acceleration in m/s/s<br> PLEASE HELP

uysha [10]

Answer:

0 m/s²

Explanation:

Acceleration is the change in velocity over change in time. If the velocity is constant, then the acceleration is 0.

5 0

3 years ago