When a ball is thrown straight up, the acceleration at its highest point is
A) upward.
B) downward.
C) zero.
D) horizontal.
E) minimum.
B
You might also like to view...
The Earth is closer to the Sun in January than in July, which accounts for the fact that the highest high tides in the Northern Hemisphere occur in
A) winter. B) spring. C) summer. D) none of the above
What is the probability of rolling either a 7 or 11 on a single roll of a pair of dice?
a. 1/6 b. 2/9 c. 3/8 d. 1/3 e. 1/2
The observed relativistic length of a super rocket moving by the observer at 0.57c will be what factor times that of the measured rocket length if it were at rest?
a. 0.82 c. 1.4 b. 0.45 d. 0.71
At the point of fission, a nucleus of U-238, with 92 protons is divided into two smaller spheres each with 46 protons and a radius of 5.9 × 10^-15 m. What is the repulsive force pushing the two spheres apart when they are just touching one another? (The mass of the U-238 nucleus is 3.98 × 10^-25 kg.)