Which best represents 5,362,000,000 kilometers in scientific notation?
a. 5.4 x 10^9 m
b. 5 x 10^10 km
c. 53.6 x 10^6 km
d. 5.362 x 10^9 mi
e. 5.362 x 10^9 km
e
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A) 20,000 years B) 200,000 years C) 2 million years D) 200 million years E) 2 billion years
A square coil, enclosing an area with sides 3.0 cm long, is wrapped with 2500 turns of wire. A uniform magnetic field perpendicular to its plane is turned on and increases to 0.12 T during an interval of 1.0 s. What average voltage is induced in the coil?
a. 2.5 V c. 1.2 V b. 0.27 V d. 0.12 V
Consider a situation where two moving objects collide, stick to each other, and move off together. For a body oscillating at the end of a spring, the energy is only elastic potential energy
Indicate whether the statement is true or false
What is the reactance of a 20-mH inductor at a frequency of 60 Hz?
A) 0.13 ? B) 1.2 ? C) 7.5 m? D) 1.2 m? E) 7.5 ?