3 years ago

Which substance has the highest specific heat? A. Soil B. Mud C. Sand D. Water

1 answer:

4 0

Answer: D. Water.

Explanation: Among liquids, water has highest heat capacity (4.18 kJ/Kg.K) but hydrogen has highest (14.3 kJ/Kg.K) heat capacity of all.

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Most chemical reactions can be divided into how many main groups?

tatyana61 [14]

There is synthesis
decomposition
double displacement
single displacement
combustion
metathesis
so i guess you could say 6

5 0

3 years ago

A car with a velocity of 6.4 m/s, forward, accelerates to a velocity of 10.6 m/s, forward, in 16 s. What is the card acceleratio

tatuchka [14]

Answer:

acceleration = 0.2625 m/s²

Explanation:

acceleration = ( final velocity - initial velocity ) / time

Here the final velocity is 10.6 m/s and initial velocity is 6.4 m/s and time is 16 s.

using the equation:

acceleration = ( 10.6 - 6.4 ) / 16

= 0.2625 m/s²

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3 years ago

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T/F: Stars die.<br> True<br> False

Yuki888 [10]

Answer:

The answer is true

Explanation:

could you brainliest again they said I plagarized when I didn't

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3 years ago

1. A stationary 50 tonne submarine fires a missile of mass 40kg at

White raven [17]

The velocity of the submarine immediately after firing the missile is 0.0104 m/s

Explanation:

Mass of the submarine M=50 tonne= $50\times 1000=50000kg$

Mass of the missile m=40 kg

velocity of the missile v= 13m/s

we have to calculate the velocity of the submarine after firing

This is the recoil velocity and its expression is derived from the law of conservation of momentum

recoil velocity of the submarine

$V=-mv/M\\=-40\times 13/50000\\=0.0104 m/s$

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3 years ago

Your friend is bragging about his motorcycle. He claims that it can go from a stopped position to 50 miles per hour in three sec

nalin [4]

If the motorcycle can go from 0 to 50mph in 3 seconds the person is describing the motorcycle's acceleration.

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3 years ago

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