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s344n2d4d5 [400]
2 years ago
7

Scientists study how the continents move. Why might scientists use a model

Physics
1 answer:
tigry1 [53]2 years ago
3 0

Answer:

B. It is too slow to observe directly

Explanation:

They move too slow to be able to observe how they move.


I hope it helps! Have a great day!
bren~

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How should Tika most likely describe this relationship between force and distance to her study group
omeli [17]

Answer:

Force is work done divided by distance

Explanation:

Work done to an object is given as rhe product of force and diatance moved, hence expressed as W=Fd where F is the applied force in Newtons, d is diatance moved in meters and W is work. The relationship between force and distance then is found by making either F or d the subject hence

F=\frac {W}{d}\\d=\frac {W}{F}

hence we can say that distance is given by dividing work by force or alternatively Force is relates to distance by dividing work done by distance. Both are correct.

7 0
3 years ago
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In a parallel circuit, what’s happens to the current through each resistor when the voltage is doubled?
34kurt

Answer:

A

Explanation:

Voltage, V = Current, I x Resistance, R  (V is directly proportional to I where R is constant of proportionality)

This means that when Voltage is increased, Current increases and when voltage is decreased, current decreases (and the inverse is true). Through all this though, resistance remains constant regardless.

6 0
3 years ago
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You live on a planet far from ours. "Based on extensive communication with a physicist on earth", you have determined that all l
Ugo [173]

Answer:

8.56 m/s2

Explanation:

Using law of energy conservation while taking into account of the rotational and translation kinetic energy, when the solid cylinder rolls down the incline we have the potential energy converted to kinetic energy:

E_p = E_{kv} + E_{k\omega}

mgh = mv^2/2 + I\omega^2/2

where m is the mass, I = mr^2/2 is the moments of inertia of the solid cylinder \omega = v / r is the angular speed of the cylinder

mgh = mv^2/2 + \frac{mr^2}{2}\frac{(v/r)^2}{2}

mgh = mv^2/2 + mv^2/4 = 3mv^2/4

h = 3v^2/(4g)

So if you plot a liner chart of h vs v^2 and get a slope of 6.42 then that means 3/(4g) = 6.42 so g = 6.42*4/3 = 8.56 m/s^2

The gravitational acceleration on this planet is 8.56 m/s2

3 0
4 years ago
Do ocean currents affect aquatic life? What do you think and why?
4vir4ik [10]

Answer: By moving heat from the equator toward the poles, ocean currents play an important role in controlling the climate. Ocean currents are also critically important to sea life.

Explanation: Plzz mark me as brainliest !!

4 0
3 years ago
Which instrument is used to measure liquid volume?
Alecsey [184]

Volumetric cylinders and volumetric flasks

3 0
3 years ago
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