Physics, 24.08.2019 04:30 jaimechristopher2002
Apropeller is modeled as five identical uniform rods extending radially from its axis. the length and mass of each rod are 0.777 m and 2.67 kg, respectively. when the propellor rotates at 573 rpm (revolutions per minute), what is its rotational kinetic energy?
Answers: 1
Physics, 21.06.2019 17:30
How does convection affect our atmosphere? our layers of earth? our oceans?
Answers: 3
Physics, 22.06.2019 09:50
Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c.the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors
Answers: 1
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
Apropeller is modeled as five identical uniform rods extending radially from its axis. the length an...
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