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zlopas [31]
3 years ago
13

The slope of a distance-time graph will give

Physics
1 answer:
Dafna1 [17]3 years ago
5 0
5.
explanation: the answer is 5
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PLEASE HURRY!!!!!!! A sample of gas does 150J of work against its surroundings and loses 90J of internal energy in the process.
olga_2 [115]

Answer:

the heat gained by the system (gas) is 60 J.

Explanation:

Given;

work done by the gas sample, W = 150 J

change in internal energy, ΔU = -90 J

Apply the first law of thermodynamic;

ΔU = Q - W

where;

Q is the heat gained by the system

From the equation above;

Q = ΔU + W

Q = -90 + 150

Q = 60 J

Therefore, the heat gained by the system (gas) is 60 J.

3 0
3 years ago
What could happen to a nonrenewable resource if it is consumed at a high rate?
eimsori [14]

Answer:

A. It could be depleted quickly.

Explanation:

It's Non-renewable, meaning it's hard to get back quickly, and using it at a high rate makes it run out well.. quicker.

8 0
3 years ago
What generates the magnetic field in a current carrying wire?
Tema [17]
I'd say it was C. but normally it's caused by the movement of electrons and electrons are negative. so I'm not really sure about this one
8 0
4 years ago
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The absolute pressure in water at a depth of 5m is read to be 145 kPa. Determine (a) the local atmospheric pressure, and (b) the
irga5000 [103]

Answer:

a) 95950 pascals

b) 137642.5 pascals

Explanation:

The absolute pressure (Pabs) on a fluid is:

P_{abs}=P_{gauge}+P_{atm} (1)

With Pgauge the pressure due depth on the fluid and Patm the atmospheric pressure. Pgauge is equal to:

P_{gauge}=\rho gh (2)

with ρ the fluid density, g the gravitational acceleration and h the depth on the fluid. Using (2) on (1) and solving for Patm:

P_{atm}=P_{abs}-P_{gauge}=P_{abs}-\rho_{water} gh

P_{atm}=(145000Pa)-(1000\frac{kg}{m^{3}})(9.81\frac{m}{s^{2}})(5m)

P_{atm}=95950Pa

b) Here we're going to use again (1) but now we have another value of density because it's other liquid, to know that value we should use the fact that specific gravity (S.G) for liquids is the ratio between fluid density and water density:

S.G=\frac{\rho_{fluid}}{\rho_{water}}

\rho_{liquid}=S.G*\rho_{water}

\rho_{liquid}=(0.85)*(1000\frac{kg}{m^{3}})=850\frac{kg}{m^{3}}

so:

P_{abs}=\rho_{liquid} gh+P_{atm}=(850\frac{kg}{m^{3}})(9.81\frac{m}{s})(5m)+95950Pa

P_{abs}=137642.5 Pa

3 0
4 years ago
I MARK BRAINLIEST, PLEASE ANSWER ASAP!!! PHYSICS 20 POINTS!!
irina [24]
The first one is C. Hope this helps!! If you need anymore help just message me and I will try to get back to you quickly and help in any way i can!
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3 years ago
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