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Leviafan [203]
3 years ago
7

If a ball is thrown straight up into the air, what is its acceleration as it moves upward? What is its acceleration when it reac

hes its highest point and is stopped at an instant?
Physics
2 answers:
tatuchka [14]3 years ago
7 0
The ball is constantly being accelerated downward by gravity at a rate of 9.80665 m/ss 
Norma-Jean [14]3 years ago
4 0
<span>The only acceleration acting on the ball once it leaves the thrower's hand is gravity. Therefore at the highest point where the ball is momentarily stopped the acceleration is still g.</span>
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Which property of sugar makes it different from white crystalline sand?
yaroslaw [1]

Answer:

The property of sugar which makes it different from sand is that sugar can dissolve in water. Explanation: however the power of dissolving of sand is not present. This is due to the presence of interaction between sugar and water.

Explanation:

I hope that was useful

5 0
3 years ago
How much electrical energy is used by the river cooker oven rated 800 W ,230 V is switched on for 30 minutes
mariarad [96]

Answer:

E = 1440 kJ

Explanation:

It is given that,

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We need to find the electrical energy used by the cooker oven. The product of power and time is equal to the energy consumed. So,

E=P\times t\\\\E=800\ W\times 1800\ s\\\\E=1440000\ J\\\\\text{or}\\\\E=1440\ kJ

So, electrical energy of 1440 kJ is consumed by the cooker oven.

8 0
3 years ago
If a satellite weighs 321 lb. on the earth's surface (R = 4,000 miles), how much does it weigh 12,000 miles above the surface? (
Sever21 [200]

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On the surface, their centers are separated by 1 Earth radius.

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The correct choice from the given list is " <em>>20 lb "</em> .  

3 0
3 years ago
The table below lists the speed that sound travels through four different materials.One of these materials is a gas, two are liq
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5 0
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4 0
2 years ago
Read 2 more answers
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