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GrogVix [38]
3 years ago
13

A 300W hot plate produces 45,000 J of thermal energy while operating for 2 min. What is the efficiency of this devide? it need t

o be 80%, 67% 0.8% or 0.67%
Physics
1 answer:
Gekata [30.6K]3 years ago
5 0

Answer:

Explanation: P = 300 W   and t = 2 min = 120 s

Energy Q = Pt = 300 W · 120 s = 36 000 J.

Thus, plate can not produce 45 000 J heat.

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meters per second

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A straight trail with a uniform inclination of 15 degrees leads from a lodge at an elevation of 600 feet to a mountain lake at a
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Answer:

The length of the trail = 22796 ft

Explanation:

From the ΔABC

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3 years ago
A brick is resting on the surface of a flat board. as one end of the board is slowly raised, what change, if any, is there in th
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4 years ago
A motorcycle accelerates from 10. m/s to 25 m/s in 5.0 seconds. What is the average acceleration of the bike?
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A 3 μf capacitor is connected to a 6 v battery. what is the charge on each plate of the capacitor?
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