3 years ago

Why does water have a high surface tension?

Physics

2 answers:

Burka [1]3 years ago

3 0

<span>Hydrogen bonding keeps water molecules close together.</span>

musickatia [10]3 years ago

3 0

Answer:

HYDROGEN BONEDNDED

Explanation:

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Using the following equation, find in seconds 145m = 9 m/s x t-35m

Zina [86]

Answer:

t = 20 s

Explanation:

145 m = 9 m/s × t – 35m

We can obtain the value of t in seconds by doing the following:

145 m = 9 m/s × t – 35m

Add 35 m to both side as shown below:

145 m + 35 m = 9 m/s × t – 35m + 35 m

180 m = 9 m/s × t

Divide both side by 9 m/s

t = 180 m / 9 m/s

t = 20 s

Therefore, the value of t is 20 seconds.

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3 years ago

Accelerated depreciation has an advantage for profitable firms in that it moves some cash flows forward, thus increasing their p

scZoUnD [109]

Answer: A. True

Explanation:

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4 years ago

a 10 kg block is attached to a light chord that is wrapped around the pulley of an electric motor. at what rate is the motor doi

defon

Answer:

The rate of work is 360 W

Explanation:

Given:

Speed of block $v = 3 \frac{m}{s}$

Upward acceleration of block $a = 2 \frac{m}{s^{2} }$

Mass of block $m = 10$ kg

First Find the force act on block due to gravity

$F = M (a + g)$

Where $g = 10 \frac{m}{s^{2} }$

$F = 10 \times (10+2)$

$F = 120$ N

For finding at what rate motor doing work when it is pulling the block upward,

$P = F.v$

$P = 120 \times 3$

$P = 360$ W

Therefore, the rate of work is 360 W

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4 years ago

If the pitch of a sound decreases and the sound source is moving, is the sound source moving toward or away from the observer

fiasKO [112]

The sound source must be moving away

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3 years ago

GETS BRAINILIST!!!!Which of the following will increase the gravitational force exerted by one object on another? Increasing the

jeka94

Answer:

C. Decreasing the distance between the objects.

Explanation:

Gravitational force depends on mass and distance. The farther the objects are apart, the less gravitational force/pull they have.

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4 years ago