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aliya0001 [1]
3 years ago
10

What rule does human nature play in science?

Physics
2 answers:
nadya68 [22]3 years ago
8 0
Ur mom :)))))))))))))))))
Greeley [361]3 years ago
8 0
Skills, knowledge, behavior, feeding, communication
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Which statement about the reaction is correct?
balu736 [363]

Answer:

I think D am not pretty show

8 0
3 years ago
To increase the brightness of a desk lamp, a student replaces a 50-watt incandescent lightbulb with a 100-watt incandescent ligh
swat32
From the formula for Electric Power, P = IV,    P = V²/R

So the 100W compared to the 50W.

From P = IV. From the equation there is a direct relationship between P and I.  More  Power P means more Current, I.

From P = V²/R. From the equation, there is an inverse relationship
between P and R. Therefore  more P means less R. 

So from these assertions, the answer is: 

(1) less resistance and draws more current
3 0
3 years ago
A girl moves quickly to the center of a spinning merry-go-round, traveling along the radius of the merry-go-round. Which of the
DochEvi [55]

Answer:

The angular speed of the system increases.

The moment of inertia of the system decreases.

Explanation:

As we know that the girl is going towards the center of the circle so here the moment of inertia of the girl is given as

I = mr^2

here we know that

r = position of the girl from the center of the disc

now we know that the girl is moving towards the center so its distance will continuously decreasing

So the moment of inertia of the girl will decrease

Now we know that that with respect to the center of the disc there is no torque on the disc + girl system

So here we can use angular momentum conservation

So we have

I\omega = constant

since moment of inertia is decreasing for the system

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3 0
4 years ago
You compress 0.5 moles of a gas at constant pressure from 4 liters to 1 liter while 2625 J of heat is removed, the temperature d
Xelga [282]

Answer:

The work energy added to the gas is

W = -72.48472 kJ

Explanation:

For constant pressure process

Work is given W = p×(V_{f} -  V_i)

However dH = m×c_{p} (T_2-T_1) = 1875 J

For mass m, dQ = 2625 J

That is m×1875 = 2625 or m = 2625/1875 = 1.4 kg

Therefore work doneper unit mass of gas is -W = p×(v₂ - v₁)

but pv = RT therefore work done per unit mass = -R×(T₂ - T₁) = -R×ΔT and

ΔT = 180.4K

Work done = -1.4×0.287×180.4 = -72.48472 kJ

8 0
4 years ago
Complete the sentences to describe the difference between speed and velocity. Speed describes how fast an object moves. Speed is
Whitepunk [10]

distance, direction, displacement

3 0
3 years ago
Read 2 more answers
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