An automobile traveling along a straight road increases its speed from 30.0 m/s to 50.0 m/s in a distance of 180 m. If the acceleration is constant, how much time elapses while the auto moves this distance?
a. 6.00 s
b. 4.50 s
c. 3.60 s
d. 4.00 s
e. 9.00 s
B
You might also like to view...
What would happen to Earth if we somehow moved our planet to the orbit of Venus?
A) Earth would suffer a runaway greenhouse effect and become as hot as or hotter than Venus. B) Temperatures would rise only slightly, but enough to melt the polar caps. C) The fact that we have oceans would moderate the temperature change because of moving our planet, so temperature would hardly change at all. D) Being so much closer to the Sun would almost immediately cause the surface of Earth to melt, and all our cities would then be destroyed by the hot lava.
Modern scientific theories are NOT:
A) testable. B) continuously tested. C) simple. D) perfect. E) elegant.
A sphere of diameter 7.9 cm is completely submerged in water and seems to weigh 32.0% less in the water than out of it
(a) What is the density of the sphere? (b) If the sphere had been twice as dense, it would have weighed what % less in water than out?
The density of aluminum is 2700 kg/m3. If transverse waves travel at in an aluminum wire of diameter what is the tension on the wire?
A) 65 N B) 39 N C) 52 N D) 78 N