The value of G was first determined by Henry Cavendish in 1798 while the Greek mathematician/scientist Hipparchus (190 BC - 120 BC) found that the radius of the moon's orbit was between 60 and 80 Earth radii. (It is actually about 59 Earth radii). The period of the Moon's orbit is about 29 days. From the period and radius you can find the speed of the Moon in its orbit. What can be determined if the radius and period of the Moon's orbit and the value of G are known

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

Astudent throws a water balloon with speed v0 from a height h = 1.76 m at an angle θ = 21° above the horizontal toward a target on the ground. the target is located a horizontal distance d = 9.5 m from the student’s feet. assume that the balloon moves without air resistance. use a cartesian coordinate system with the origin at the balloon's initial position. (a) what is the position vector, rtarge t, that originates from the balloon's original position and terminates at the target? put this in terms of h and d, and represent it as a vector using i and j. (b) in terms of the variables in the problem, determine the time, t, after the launch it takes the balloon to reach the target. your answer should not include h. (c) create an expression for the balloon's vertical position as a function of time, y(t), in terms of t, vo, g, and θ. (d) determine the magnitude of the balloon's initial velocity, v0, in meters per second, by eliminating t from the previous two expressions.

Sunidhi made a study chart about changes in states of matter. which headings best complete the chart?