Which statement describes the Oort cloud? O It is shaped like a donut.
O It contains huge icy objects.
O It is home to short-period comets.
O It is about 1,000 AU from the Sun.

Avalue that describes how heavy an object is and is related to the force of gravity is

What is the electric force acting between two charges of -0.0045 c and -0.0025 c that are 0.0060 m apart? use fe=kq1q2/r^2 and k = 9.00 x 10^9 n*m^2/c^2 a. 1.7 x 10^7 n b. -1.7 x 10^7 n c. -2.8 x 10^9 n d. 2.8 x 10^9 n

If gases like carbon dioxide and methane make up less than 1% of the total atmosphere, why is it important for scientists to monitor changes in percentages of these gases?