If the radiant energy from the sun comes in as a plane EM wave of intensity 1340 W/m2, calculate the peak values of E and B
a. 300 V/m, 10?4 T
b. 1 000 V/m, 3.35 × 10^?6 T
c. 225 V/m, 1.60× 10?3 T
d. 111 V/m, 3.00 × 10^?5 T
e. 711 V/m, 2.37 × 10^?6 T
b
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An airplane has a mass of 30,000 kg and travels at 300 m/s. If the drag force is 1000 N, the power the engines have to provide to keep flying at a constant speed is
a.
b.
c.
d.
e.
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A) about 4.5 billion years ago B) about 20 billion years ago C) about 65 million years ago D) about 14 billion years ago E) about 10 billion years ago
Potential energy is energy that an object possesses because of its
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