Question 12 (3 points) The diagram below shows four objects in the solar system which have equal masses.
1
3
4
2.
© 2010FLVS
Which of these pairs of objects exerts the least gravitational force on each other? (3 points)
Оа
Ob
Object 1 and Object 3
Object 4 and Object 3
Object 1 and Object 2
Ос
Od
Object 4 and Object 2

Determine the maximum r-value of the polar equation r =3+3 cos 0

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.

Avertical clean glass piezometer tube has an inside diameter of d = 1 mm and is used to measure pressure in a horizontal pipe carrying water as shown. due to pressure in the pipe, the water at 20c rises into the tube to a height h. if the water pressure in the pipe is p = 500 pa gauge, estimate the height h: (a) without considering surface tension (b) with surface tension (capillary) effects. the contact angle  can be assumed at 30 deg