3 years ago

Question 2 of 10

Physics

1 answer:

emmainna [20.7K]3 years ago

8 0

Answer:

Explanation:

I just did it on apex

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At 7.0°c, the volume of a gas is 49 ml. at the same pressure, its volume is 74 ml at what temperature?

Rashid [163]

So i converted everything first;
7.0 C ---> 280 K 
49 mL---> 0.049 L 
74mL---> 0.074 L 
THEN I tried setting it up by the combined law formula which is P1V1/T1=P2V2/T2

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3 years ago

a small table has a mass of 4kg, stands on four legs, each leg having an area of 0.001 m2. what is the pressure exerted by the t

Gemiola [76]

Answer:

P = 10 kPa

Explanation:

Given that,

The mass of a small table, m = 4 kg

The area of each leg = 0.001 m²

We need to find the pressure exerted by the table on the floor. Pressure is equal to the force per unit area. So

$P=\dfrac{mg}{4\times A}\\\\P=\dfrac{4\times 10}{4\times 0.001}\\P=10000\ Pa\\\\or\\\\P=10\ kPa$

So, the required pressure is 10 kPa.

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If force and displacement are in opposite directions, will work be positive or negative?

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2. Can the frictional force in this experiment be ignored? Explain.

neonofarm [45]

Answer:

i dont know

Explanation:

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How did the space rock die??

EastWind [94]

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