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KiRa [710]
3 years ago
8

A ball is thrown upward from the ground with an initial speed speed of 25 meters/second; at the same instant, a ball is dropped

from rest from a building 15 meters high. After how long will the balls be at the same height?
Physics
1 answer:
victus00 [196]3 years ago
7 0
At the speed of 15m/s of first ball
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3.00 m^3 of water is at 20.0°C.
krok68 [10]

Answer:

9m^3

Explanation:

Given data

volume  v1=  3m^3

volume  v2=  ???

Temperature T1= 20.0°C.

Temperature T2= 60.0°C.

Applying the relation for temperature and volume

V1/T1= V2/T2

substitute

3/20= V2/60

3*60= V2*20

180= 20*V2

180/20= V2

V2= 9m^3

Hence the final volume is 9m^3

6 0
3 years ago
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pickupchik [31]

Answer:C (198 seconds)

Explanation: The cyclist makes the first lap in (180.00 - 6.00) = 174.00 seconds. The average time per lap for all three circuits is (600.00 - 6.00) = 594/3 = 198 seconds.

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3 years ago
If you drop a 50 gram piece of metal that has a temperature of 110°Celsius into 1000 grams of water at 25°Celsius, what best des
LuckyWell [14K]
If you drop a 50 gram piece of metal that has a temperature of 110°Celsius into 1000 grams of water at 25°Celsius, <span>D.)The water and the metal’s temperature will reach the same temperature. In any system undergoing heat transfer, the objects involved will eventually reach the same temperature, signifying thermal equilibrium.</span>
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3 years ago
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What happens when the difference in charge between a cloud and the ground is too great?
steposvetlana [31]
Lightning strikes the ground

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3 years ago
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What effect will the north pole of one magnet have on the north pole of another magnet?
Y_Kistochka [10]

Answer:

Repulsion

Explanation:

Every magnet has two poles: North and South. Magnets have a property that they attract or repel another magnet and iron-nickel objects. But whether two magnets will attract or repel each other depends on how they are brought together. If unlike poles are brought near the magnets will attract. If like poles are brought near then they will repel each other.

Here north pole of one magnet will repel north pole of another magnet.

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3 years ago
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