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lord [1]
2 years ago
15

A bus of mass 3,500 kg that is moving at a speed of 18 m/s and

Physics
1 answer:
dezoksy [38]2 years ago
8 0
P₁ + P₂ = m₁V₁ + m₂V₂

3500(18) + 1300(20) =

63000 + 26000 =

890000 Kg • m/s



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I'm walking 1.6m/s to 7-11 and it started to rain so I sped up to 2.7m/s in 1.2
olga nikolaevna [1]

Answer:

Explanation:

a = \frac{v_f-v_0}{t} which is the final velocity minus the initial velocity in the numerator, and the change in time in the denominator.  For us:

a=\frac{2.7-1.6}{1.2} so

a = .92 m/s/s (NOT negative because you're speeding up)

5 0
3 years ago
In a simple RC circuit, at t=0 the switch is closed with the capacitor uncharged. If C=30µF, =50V and R=10k, what is the poten
sergij07 [2.7K]

Answer:

Voltage across the capacitor is 30 V and rate of energy across the capacitor is 0.06 W

Explanation:

As we know that the current in the circuit at given instant of time is

i = 2.0 mA

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now we know by ohm's law

V = iR

V = (2 mA)(10 kohm)

V = 20 volts

so voltage across the capacitor + voltage across resistor = V

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Now we know that

U = \frac{q^2}{2C}

here rate of change in energy of the capacitor is given as

\frac{dU}{dt} = \frac{q}{C} \frac{dq}{dt}

\frac{dU}{dt} = (30)(2 mA)

\frac{dU}{dt} = 0.06 W

3 0
2 years ago
Properties of light that define light as a wave?
MAVERICK [17]
The first choices are correct, because the second choices could happen by things other than light.
6 0
2 years ago
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If you poured yourself a drink and then you started to see layers what phenomenon is happening?
arsen [322]

Answer:

alcohol poisoning

Explanation:

4 0
3 years ago
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Which type of thermal energy transfer occurs mostly in fluids?
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The answer is: 

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I hope this helps :D 
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3 years ago
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