Physics, 07.05.2021 01:00, sierrathomas431
The billions of galaxies in the universe are organized into smaller groups of galaxies which in turn belong to larger groups. Janelle wanted to build a scale model comparing the sizes of the major galaxies in the Local Group. The Milky Way and Andromeda are the two largest galaxies in the Local Group. Andromeda has a diameter of about 200,000 light years and the Milky Way has a diameter of about 100,000 light years. Janelle cut out a cardboard disk 3 centimeters in diameter to represent the size of the Milky Way. How large must she make the diameter of the disk representing Andromeda
Answers: 3
Physics, 23.06.2019 00:50, lbelle
Aplayer uses a hockey stick to push a puck at a constant velocity across the ice. the weight of the puck is 170 n. the coefficient of friction is 0.0600. with what force must the player push the puck so that his force just equals the frictional force? 28.3 n 0.999 n 0.102 n 0.0104 n
Answers: 1
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