3 years ago

A paratrooper jumping from the plane lands safely ,why?

1 answer:

3 0

A paratrooper opens parachute immediately after jumping to increase the air resistance and land safely on the ground. as the speed of the paratrooper increases, the air resistance also increases

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A beam of light bends when it passes from air into water, and then bends even more when it passes from water into glass. What ca

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Answer:

Certain Things Make Light Bend?

Explanation:

Transparent Objects/ things can make light bend when entering through it.

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2 years ago

You then measure Polly's internal temperature to be 13oC, which is quite a drop from the normal human body temperature of 37oC.

ankoles [38]

Answer:

The specific heat is 3.47222 J/kg°C.

Explanation:

Given that,

Temperature = 13°C

Temperature = 37°C

Mass = 60 Kg

Energy = 5000 J

We need to calculate the specific heat

Using formula of energy

$Q= mc\Delta T$

$c =\dfrac{Q}{m\Delta T}$

Put the value into the formula

$c=\dfrac{5000}{60\times(37-13)}$

$c=3.47222\ J/kg^{\circ}C$

Hence, The specific heat is 3.47222 J/kg°C.

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3 years ago

Is the strange solid/liquid changing behavior of Oobleck the SAME as an ice cube melting?

Dmitrij [34]

I don’t think so because an ice cube melting needs heat and relies on temp while ooblecks transition from solid to quickly depends on force and speed

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3 years ago

The hard external covering of some invertebrates is called a what

IRISSAK [1]

That would be the exoskeleton!

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3 years ago

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Scuba divers use compressed oxygen gas to go diving. The oxygen's volume decreases as pressure is increased to fit more in an ox

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I feel like it’s Boyle’s Law, correct me if I’m wrong .

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2 years ago

A paratrooper jumping from the plane lands safely ,why?​

A paratrooper jumping from the plane lands safely ,why?