A proton is placed in an electric field of intensity 700 N/C. What are the magnitude and direction of the acceleration of this proton due to this field? (mproton = 1.67 × 10-27 kg, e = 1.60 × 10-19 C)
A) 6.71 × 109 m/s2 opposite to the electric field
B) 6.71 × 1010 m/s2 opposite to the electric field
C) 6.71 × 1010 m/s2 in the direction of the electric field
D) 67.1 × 1010 m/s2 opposite to the electric field
E) 67.1 × 1010 m/s2 in the direction of the electric field
C
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A European sports car dealer claims that his product will accelerate at a constant rate from rest to a speed of 100 km/hr in 8.00 s. What is the speed after the first 5.00 s of acceleration? (Hint: First convert the speed to m/s.)
a. 34.7 m/s c. 23.1 m/s b. 44.4 m/s d. 17.4 m/s
Someone in Earth's rest frame says that a spaceship's trip between two planets took 10.0 y, while an astronaut on the space ship says that the trip took Find the speed of the spaceship in terms of the speed of light
A) 0.779c B) 0.687c C) 0.975c D) 0.384c
Nuclear fusion is the source of energy in stars
Indicate whether the statement is true or false
What does the Moon's low density suggest about its internal structure?
A. The Moon's iron core is smaller relative to Earth's. B. The lunar interior has not differentiated. C. The Moon's crust is very thick and poor in iron. D. The lunar mantle extends to the center of the Moon.