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Natali [406]
3 years ago
13

During a vaporization a substance changes from what to what

Physics
2 answers:
stiks02 [169]3 years ago
8 0
Solid to a gas (which is sublimation. such as in dry ice) From a liquid to a gas. Such as water to stem. Evaporation is the vaporization of water.  
dusya [7]3 years ago
6 0
A substance changes from liquid to gas
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A football punter wants to kick the ball so that it is in the air for 4.5 s and lands 50 m from where it was kicked. Assume that
irakobra [83]

Answer:

(a) The angle of projection is 63 degree.

(b) The velocity of projection is 24.5 m/s.

Explanation:

Height, h = 1 m

horizontal distance, d = 50 m

time, t = 4.5 s

Let the initial velocity is u and the angle is A.

(a) Horizontal distance = horizontal velocity x time

50 = u cos A x 4.5

u cos A = 11.1 .....(1)

Use second equation of motion in vertical direction

h = u t + 0.5 gt^2\\\\- 1 = u sin A \times 4.5 - 0.5 \times 9.8\times 4.5^2\\\\u sin A = 21.8 ..... (2)

Divide (2) by (1)

tan A = 1.97

A = 63 degree

(b) Substitute the value of A in equation (2)

u x sin 63 = 21.8

u = 24.5 m/s

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3 years ago
Describe how two isotopes of nitrogen differ from two nitrogen ions???PLEASE ANSWER 20 POINTS
Wewaii [24]

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3 years ago
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Calculate the rate of heat generation in kW due to the burning of the fuel when you drive a car rated at 34 MPG (miles per gallo
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Answer:

Explanation:

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3 years ago
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