3 years ago

ANSWER QUICK 30 POINTS

Physics

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Lelu [443]3 years ago

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The internal energy of a system increases by 36 joules. The system does work using 17 joules. What amount of heat was added to t

Ray Of Light [21]

General internal energy expression:

Uf = (Ui-W) + Q

Where Uf = Final internal energy, Ui = Initial internal energy, W = Work done, Q = Heat added

But,
Uf -Ui = ΔU = 36 J, W = 17 J. Then,
ΔU = -W +Q => Q = ΔU+W = 36+17 = 53 J

Therefore, heat added to the system is 53 Joules

8 0

4 years ago

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A severe storm on January 10, 1992, caused a cargo ship near the Aleutian Islands to spill 29,000 rubber ducks and other bath to

Anna35 [415]

The distance that the rubber ducks traveled = 1600 miles.
The time taken to travel this distance = 10 months.

By definition, the approximate average speed of the ocean is
v = (1600 miles)/(10 months)

Note that
1 mile = 1609 m
10 months = (10 months)*(30 days/month) *(24 hours/day)
= 7200 hours (approx.)
= 7200*3600 = 2.592 x 10⁷ s

Therefore
$v = \frac{(1600 \, m)*(1609 \, \frac{m}{mi}) }{(10 \, months)*(2.592 \times 10^{7} \, \frac{s}{10 \, months}) } = 0.0993 \, \frac{m}{s}$

Also,
$v = \frac{1600 \, m}{7200 \, h} =0.222 \, \frac{mi}{h}$

Answer:
The average velocity is approximately 0.1 m/s, or 0.222 m/h.

6 0

3 years ago

Hey swimmer swim 50 m in 20 seconds what is their average velocity

fenix001 [56]

It’s 2.6 for the average velocity

3 0

3 years ago

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Prove the conservation of linear momentum

Irina18 [472]

Answer:

force experienced by A and B are equal and opposite, that is total momentum before collision is equal to total momentum after collision if no external forces act on them which proves the principle of conservation of linear momentum.

8 0

3 years ago

Pls help it’s due today

AveGali [126]

Explanation:

so I think it B hope that I helped you can good lick

4 0

3 years ago