Physics, 17.10.2019 19:50 sarahfsakrani
Tonya picks up a leaf from the ground and holds it at arm’s length. she lets go, and the leaf falls to the ground. what force pulled the leaf to the ground?
Answers: 2
Another question on Physics
Physics, 22.06.2019 17:30
Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.
Answers: 3
Physics, 22.06.2019 22:50
Cyclotrons are widely used in nuclear medicine for producing short-lived radioactive isotopes. these cyclotrons typically accelerate h- (the hydride ion, which has one proton and two electrons) to an energy of 5 mev to 20 mev. this ion has a mass very close to that of a proton because the electron mass is negligible—about 1 2000 of the proton’s mass. a typical magnetic field in such cyclotrons is 1.9 t. (a) what is the speed of a 5.0-mev h-? (b) if the h- has energy 5.0 mev and b = 1.9 t, what is the radius of this ion’s circular orbit?
Answers: 1
Physics, 23.06.2019 12:30
The lid of a pressure cooker forms a nearly airtight seal. steam builds up pressure and increases temperature within the pressure cooker so that food cooks faster than it does in an ordinary pot. the system is defined as the pressure cooker and the water and steam within it. if 2.0 g of water is sealed in a pressure cooker and then vaporized by heating, and 5127 j must be added as heat to completely vaporize the water, what is the change in the system’s internal energy? answer in units of j.
Answers: 2
You know the right answer?
Tonya picks up a leaf from the ground and holds it at arm’s length. she lets go, and the leaf falls...
Questions
Biology, 08.02.2021 18:30
Mathematics, 08.02.2021 18:30
Mathematics, 08.02.2021 18:30
Mathematics, 08.02.2021 18:30
Computers and Technology, 08.02.2021 18:30
Mathematics, 08.02.2021 18:30
Mathematics, 08.02.2021 18:30
Spanish, 08.02.2021 18:30
