Physics, 30.09.2019 06:10 kcarstensen59070
Akeem is walking on the beach on a hot summer day.
the sand is very hot, so he runs and puts his feet in the
water, which is much cooler. explain why the water is
cooler than the sand.
Answers: 1
Physics, 22.06.2019 19:00
According to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does maria's voyage take according to samir?
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 01:50
Aseries circuit contains a 30 e resistor, a 20 resistor, and a 10 resistor. the power supply provides 100 v to the circuit the current in the 10 resistor, to two significant figures, is a.
Answers: 1
Akeem is walking on the beach on a hot summer day.
the sand is very hot, so he runs and puts h...
the sand is very hot, so he runs and puts h...
Biology, 10.08.2021 03:30
Mathematics, 10.08.2021 03:30