A car is traveling with a constant speed when the driver suddenly applies the brakes, giving the car a deceleration of 3.50 m/s2
The car comes to a stop in a distance of 34.0 m. What was the car's speed when it had traveled 17.0 m from the point where the brakes were applied?
A) 10.9 m/s
B) 14.5 m/s
C) 10.7 m/s
D) 21.0 m/s
E) 15.3 m/s
A
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A proton's rest mass is 1.67 × 10?27 kg. Calculate its total energy when it is accelerated to a speed of 0.80c.
A. 1.5 × 10?10 J B. 1.0 × 10?10 J C. 2.5 × 10?10 J D. 2.0 × 10?10 J E. 7.5 × 10?10 J
The moon ________ may have erupted to create the E rings around Saturn
Fill in the blank(s) with correct word
Sound A has a high pitch and sound B has a low pitch. Which of the following statements about these two sounds are correct? (There could be more than one correct choice.)
A) The wavelength of A is longer than the wavelength of B. B) The period of A is shorter than the period of B. C) The frequency of A is greater than the frequency of B. D) Sound B travels faster than sound B through air. E) The amplitude of A is larger than the amplitude of B.
Accuracy refers to how close a measurement is to the true value
Indicate whether the statement is true or false