A baseball catcher puts on an exhibition by catching a 0.150-kg ball dropped from a helicopter at a height of 100 m above the catcher. If the catcher "gives" with the ball for a distance of 0.500 m while catching it, what average force is exerted on the mitt by the ball? (g = 9.80 m/s2)
a. 78 N
c. 197 N
b. 119 N
d. 295 N
D
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In the aluminum-nickel phase diagram in Figure 5.15, what is the reaction type that leads to the formation of Al3Ni at 854°C? _____________
Fill in the blank(s) with the appropriate word(s).
We can think of the high tide on the side of Earth opposite the Moon as a result of the Moon pulling Earth away from the water.
Answer the following statement true (T) or false (F)
Which situation has the least magnitude of angular momentum about the origin?
A. A 2 kg mass travels along the line y = 3 m with speed 1.5 m/s. B. A 1 kg mass travels in a circle of r = 4.5 m about the origin with speed 2 m/s. C. A disk with I = 3 kg·m2 rotates about its center (on origin) with ? = 3 rad/s.
1.A 2.B 3.C 4.Both A and B 5.Both A and C 6.Both B and C 7.All have the same magnitude angular momentumWhat is the absolute pressure at a distance 5.00 m below the surface of a lake? Assume the density of the water in the lake is 1000 kg/m3
A) 5.00 × 103 N/m2 B) 1.50 × 105 N/m2 C) 0.49 × 105 N/m2 D) 1.05 × 105 N/m2 E) 4.66 × 105 N/m2