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QveST [7]
3 years ago
6

Five marbles roll down a ramp. Each marble reaches the bottom of the ramp at a speed of 3 meters/second. Which marble has the hi

ghest kinetic energy at the bottom of the ramp? The table lists the mass of each marble
Physics
1 answer:
Nat2105 [25]3 years ago
3 0
<span>marble 4 is the correct answer</span>
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4. How long does it take a car traveling at 45 km/h to travel 100.0 m?<br> 4500m
Trava [24]

Answer:

8.0s

Explanation:

45 km/h ÷ 3.6  = 12.5 m/s

t.v = d/t

vt/v = d/v

t = d/v = 100.0m /12.5 m/s = 8.0s

Hope this helps!!

8 0
3 years ago
The gravitational field strength at the Earths surface is 9.8 m/sec^2. What is the field strength at a distance two Earth radio
NeX [460]

Answer:

hope this helps you

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7 0
3 years ago
A fan at a rock concert is 50.0 m from the stage, and at this point the sound intensity level is 108dB. Sound is detected when a
Andre45 [30]
Based on your question the answer to this is the following and i hope i answered you question correctly:

How much energy is transferred to her eardrums each second ? 
-6.31
<span>
How fast would a 2.00 mg mosquito have to fly to have this much kinetic energy? </span>
-1.39*10^-5<span>

How fast a typical 2.0 mg mosquito would have to fly (in mm/s) to have an amount of energy delivered to the eardrum each second when someone whispers (20 dB) a secret in your ear?
-</span><span>3.5 joules</span>

4 0
3 years ago
A 10 µf capacitor is charged to 108 v and is then connected across a 328 ω resistor. what is the initial charge on the capacitor
valina [46]
The capacitance is defined as the maximum charge stored in a capacitor, Q, divided by the voltage applied, V:
C= \frac{Q}{V}

The capacitor is initially charged with the battery of 108 V, so the the initial charge on the capacitor can be found by re-arranging the previous formula:
Q=CV=(10 \mu F)(108 V)=1080 \mu C
8 0
4 years ago
A cyclist does work at the rate of 500 w while riding. how much force does her foot push with when she is traveling at 8.0 m/s?
NikAS [45]
P=F*V
F=P/V
F=500W/8=62.5N
7 0
3 years ago
Read 2 more answers
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