3 years ago

Why does a small pebble sin in water?

Physics

1 answer:

strojnjashka [21]3 years ago

6 0

A small pebble would sink in water because it is to light and can’t hold itself up in the water. Hope this helped!

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How long will it take a ball to roll 10 meters along the floor at a speed of 0.5m/s

Julli [10]

Answer:

Explanation:

because m/s=s/t so,

0.5m/s=10m/t

t=10m/0.5m/s

t=5sec

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1 year ago

If a 4.0Ω resistor, a 6.0Ω resistor, and an 8.0Ω resistor are connected in parallel across a 12 volt battery, what is the total

allsm [11]

Answer:

Explanation:

6.7 amps

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3 years ago

What is the force on a person’s hand, which is using a rope to accelerate a 5 kg block upward with an acceleration of 2.2 m/s 2

slavikrds [6]

Answer:

F = 11 N

Explanation:

Given,

Mass of a block, m = 5 kg

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3 years ago

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expeople1 [14]

Answer:

v = 3.84 m/s

Explanation:

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$Centripetal\ Force = Frictional\ Force\\\\\frac{mv^2}{r} = \mu R = \mu W\\\\\frac{mv^2}{r} = \mu mg\\\\\frac{v^2}{r} = \mu g\\\\v = \sqrt{\mu gr}$

where,

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3 years ago

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there are 28 neutrons present

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3 years ago