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olga55 [171]
3 years ago
7

a person Travels along a straight road for half the distance with velocity V1 and the remaining half the distance with velocity

V2 the average velocity is given by​
Physics
1 answer:
Damm [24]3 years ago
4 0

Answer: (V1+V2)/2

Explanation: This is because basically with the question they are trying to say u(initial velocity) is V1 and v(final velocity) is V2 as the journey starts off with V1 and ends with V2 so therefore we know an equation where average velocity=(u+v)/2. So here it’s (V1+V2)/2

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3 years ago
The henry's law constant for n2 is 6. 2×10−4matm at 25∘c. what pressure of nitrogen is needed to maintain a n2 concentration of
hodyreva [135]

The pressure of nitrogen which is needed to maintain a N2 concentration of 0. 53 m is 3.2 × 10^(4).

<h3>What is pressure? </h3>

It is defined as the continuous physical force applied on or against an object by something which is in contact with it.

It is also defined as the force per unit area.

<h3>What is henry's law? </h3>

The henry law constant is thr ratio of the partial pressure of compound in air to the concentration of compound in water at given temperature.

C= kp

where,

C is the concentration of compound = 0.53m

k is the henry constant = 6. 2×10−4matm

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By substituting all the value we get,

C = 6. 2×10−4 × p

0.53 = 6. 2×10−4 × p

p = 0.53/6. 2×10−4

p = 3.2 × 10^(4)

Thus we find that the pressure needed to maintain a N2 concentration of 0. 53 m is 3.2 × 10^(4).

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8 0
2 years ago
A stone is dropped from the upper observation deck of a tower, 900 m above the ground. (assume g = 9.8 m/s2.) (a) find the dista
aleksley [76]
The original vertical velocity = 0 (because the stone was dropped).
Assume that air resistance may be ignored.

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Then
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The height of the stone above ground is
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Answer: h(t) = 900 - 4.9t²

4 0
3 years ago
You have a pumpkin of mass m and radius r. the pumpkin has the shape of a sphere, but it is not uniform inside so you do not kno
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8 0
3 years ago
Explain the difference between the four states of matter.
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Answer:

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Explanation:

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