Refer to the race described above. According to Ben, what happens?
A) The light beam gradually pulls ahead of him and wins the race because it is going 1 percent of the speed of light faster than him.
B) The light beam instantly finishes the race, before Ben even has a chance to start.
C) The light beam moves out ahead of him at the full speed of light, winning the race easily.
D) Ben wins the race and becomes a hero.
C
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Most hot Jupiters are thought to have formed in the orbits they have been discovered
Indicate whether the statement is true or false
Alternating current and voltage (AC), rather than direct current and voltage (DC), are used for domestic electrical power. The reason for this is based on one of the following physical principles. Which one?
A) When a current flows through a resistance, heat is generated. B) When a current flows through a wire, a magnetic field is created. C) When the number of magnetic field lines passing through a circuit changes, a voltage is generated in the circuit. D) When a current-carrying wire is placed in a magnetic field, it may experience a force if properly oriented. E) Opposite electric charges attract each other, and like charges repel each other.
How much heat energy is required to vaporize a 4.40-g ice cube at 0°C? The heat of fusion of ice is 80.0 cal/g. The heat of vaporization of water is 540 cal/g, and cwater = 1.00 cal/g/°C
a. 2 730 cal b. 3 170 cal c. 2 820 cal d. 3 520 cal e. 2 380 cal
The elements that hardly ever react with other elements to form compounds are called the ______________
Fill in the blank(s) with correct word