The figure shows a distance vs. time graph of an object with three distinct regions, I, II, and III
?
The object’s velocity is zero in region(s)
a.
I.
b.
II.
c.
III.
d.
no regions
b
You might also like to view...
What type of galaxy can result from collisions between galaxies?
A.) Spiral B.) Elliptical. C.) Irregular. D.) A or C. E.) B or C.
A large spherical tank is filled with liquid nitrogen at -200ºC. Using an approximation that the elements of the sphere are infinite walls with initial temperature of 10ºC, when the surroundings are at 10ºC as shown, predict the temperature through the wall after 5 minutes using graphical techniques. The tank is 1% carbon steel, 2 cm thick, and the convective heat transfer coefficients are 40 W/m^2 K for air and 60 W/m^2 K for the nitrogen. Also determine the time before the outside wall reaches 5ºC.
During a lunar eclipse, the Moon, Earth, and Sun all lie on the same line, with the Earth between the Moon and the Sun
The Moon has a mass of 7.36 × 1022 kg; the Earth has a mass of 5.98 × 1024 kg; and the Sun has a mass of 1.99 × 1030 kg. The separation between the Moon and the Earth is given by 3.84 × 108 m; the separation between the Earth and the Sun is given by 1.496 × 1011 m. (a) Calculate the force exerted on the Earth by the Moon. (b) Calculate the force exerted on the Earth by the Sun. (c) Calculate the net force exerted on the Earth by the Moon and the Sun.
A solution with a pH of 6 is
a. strongly acidic. b. weakly basic. c. strongly basic. d. weakly acidic.