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3 years ago

Explain how the global sea surface temperature is affected by solar activity.

1 answer:

8 0

The higher the solar activity, and the hotter it is, the more the oceans heat up and water evaporates into the atmosphere. High amounts of water vapor causes things like hurricanes. However, oceans have a high absorption rate of heat so they can absorb a lot of it without heating up the atmosphere, which is pretty good or else the Earth would overheat.

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2. How much work does gravity do in causing a 6 kg hammer to fall to the ground from a

mrs_skeptik [129]

Answer: heavy objects will have a higher terminal velocity than light objects. ... It takes a larger air resistance force to equal the weight of a heavier object. A larger air resistance force requires more speed.) Therefore, heavy objects will fall faster in air than light objects.

6 0

3 years ago

2. For one hour, you travel east in your car covering 100 km .Then travel south 100 km in 2 hours. You would tell your friends t

stiv31 [10]

Answer:

Explanation:

Average velocity is change in position over the change in time. You have to take the directions into account. 100km east and then 100km south. That forms a right triangle, so you can use Pythagorean's theorem to find the hypotenuse which would be the displacement from his initial position:

$\sqrt{100^2+100^2} = \sqrt{20,000}=141.42km$

Now take the displacement and divide it by the time it took to do the trip, 3 hours:

$141.42km/3hours=47.14km/h$

3 0

4 years ago

Two wooden boxes of equal mass but different density are held beneath the surface of a large container of water. Box A has a sma

sweet [91]

Answer:

As a box A has a smaller average density than box B, then it will have a greater acceleraton towards the surface upon releasing. So the option E) Box A is a correct option.

Explanation:

4 0

4 years ago

A jet lands on an aircraft carrier at 140 mi/h. What is its acceleration if it stops in 2.0 seconds?

sergejj [24]

Answer:

Acceleration, $a=-31.29\ m/s^2$

Explanation:

It is given that,

Initial speed of the aircraft, u = 140 mi/h = 62.58 m/s

Finally, it stops, v = 0

Time taken, t = 2 s

Let a is the acceleration of the aircraft. We know that the rate of change of velocity is called acceleration of the object. It is given by :

$a=\dfrac{v-u}{t}$

$a=\dfrac{0-62.58}{2}$

$a=-31.29\ m/s^2$

So, the acceleration of the aircraft is $31.29\ m/s^2$ and the car is decelerating. Hence, this is the required solution.

4 0

4 years ago

The law of conservation of mass states that

Jlenok [28]

Hello There!

The law of conservation of mass states that <em>Matter/substances/energy can not be created or destroyed, it can only be transferred from state to state.</em>

6 0

3 years ago