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zysi [14]
3 years ago
14

Use your knowledge of the properties of the different states of matter to determine in which state sound would travel the fastes

t.
A) liquid carbon dioxide
B) gaseous carbon dioxide
C) dry ice - solid carbon dioxide
D) none - sound travels at a constant rate
Physics
1 answer:
Marizza181 [45]3 years ago
4 0

Answer:

c)

Explanation:

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Answer: a good level of body fat can be found using your weight and height as a reference.

Explanation:

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3 years ago
3. An explosion of gas from a Hawaiian volcano blows a bunch of rocks into the sky. Each has 2000J of
anzhelika [568]

Answer: 3.906kg

Explanation:

K.E = 2000J

V = 32m/s

m =?

K.E = 1/2MV2

2000 = 1/2M x (32^2)

2000 = 1/2M x 1024

2000 = 512M

M = 2000/512

M = 3.906kg

4 0
3 years ago
A particle moves along a straight line with equation of motion s = f(t), where s is measured in meters and t in seconds. Find th
Rashid [163]

Answer:

The velocity of the particle = -1.92 m/s

The speed of the particle = 5.72 m/s

Explanation:

Given equation of motion;

f(t) = 18 \ + \ \frac{48}{t} \ + \ 1

Velocity is defined as the change in displacement with time.

V = \frac{df(t)}{dt} = -\frac{48}{t^2} \\\\at \ t = 5 \ s\\\\V = -\frac{48}{5^2} = \frac{-48}{25} = - 1.92 \ m/s

The distance traveled by the particle in 5 s:

s = f(5) = 18 + \frac{48}{5} + 1\\\\s= 28.6 \ m

The speed of the particle when t = 5s

Speed = \frac{28.6}{5} = 5.72 \ m/s

6 0
2 years ago
What is the resultant force on the human cannonball in the
Svetllana [295]

Answer:

heart

Explanation:

4 0
2 years ago
A car has a mass of 1,200 kg. What is its acceleration when the engine exerts a force of 600 N? (Formula: F=ma)
Rasek [7]

Answer:

Option (a)

Explanation:

Given that,

Mass of a car, m = 1200 kg

Force exerted by the engine, F = 600 N

Noe force,F = ma

a is the acceleration of the engine

a=\dfrac{F}{m}\\\\a=\dfrac{600\ N}{1200\ kg}\\\\a=0.5\ m/s^2

So, the acceleration of the car is 0.5 m/s².

6 0
3 years ago
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