Physics, 27.10.2021 04:20 michelle5642b
An asteroid of mass 2.0×105 kg , traveling at a speed of 36 km/s relative to the Earth, hits the Earth at the equator tangentially, and in the direction of Earth's rotation.
Use angular momentum to estimate the percent change in the angular speed of the Earth as a result of the collision.
I set up my equation like the following..
(5MaVa)/(2RMeWe), from change in angular velocity divided by angular vel of the earth. I used conservation of momentum, but I do not know how to get the Radius.
Answers: 1
Physics, 21.06.2019 19:30
A33.1 g copper object is launched from a 1.5 m 30° steel incline positioned on the floor by being pulled up a string attached to a 50.0 g mass suspended vertically over a pulley. the object is projected towards a glass table where it lands when it is at the point along its trajectory with the lowest speed. it comes to a halt when it clears the opposite edge of the table. it then falls and lands on 9 physics texts each 5 cm thick that are stacked on the floor on the opposite side of the table. assume that the table does not have a ledge and the rectangular object experiences 0.05 n of air resistance as it falls towards the books. how far and how long did the object travel and how fast does it hit the books. assume that at the moment the copper object leaves the incline, the massless string and ideal pulley break off
Answers: 2
Physics, 22.06.2019 02:30
Which is an example of gaining a static charge by conduction? a) rubbing a balloon against your hair. b) shuffling your shoes across a carpet. c) bringing a charged rod near an electroscope. d) touching your car on a cold day and getting a shock.
Answers: 1
Physics, 22.06.2019 10:50
Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.
Answers: 3
An asteroid of mass 2.0×105 kg , traveling at a speed of 36 km/s relative to the Earth, hits the Ear...
Mathematics, 02.02.2020 00:43
History, 02.02.2020 00:43
Mathematics, 02.02.2020 00:43
Biology, 02.02.2020 00:43
English, 02.02.2020 00:43
English, 02.02.2020 00:43
Social Studies, 02.02.2020 00:43
Mathematics, 02.02.2020 00:43
Mathematics, 02.02.2020 00:43
Physics, 02.02.2020 00:43
Chemistry, 02.02.2020 00:43