Physics, 22.11.2019 22:31 mahhvelousg97

The power emitted by the sun in the form of electromagnetic waves is about 4.00 1026 w. the distance from the earth to the sun is about 150 million km, and the radius of the earth is approximately 6400 km.
(a) using these numbers, determine the intensity of sunlight reaching earth. w/m2
(b) using these numbers, determine the total energy every second in the sunlight that is incident on the earth. for reference, on your electricity bill, you get charged about $1 for every 3.6 107 j of electricity you use, so you might want to think about the value of one second's worth of sunlight hitting the earth

Answers: 3

Show answers

Another question on Physics

Physics, 22.06.2019 12:10

Consider a one meter long horizontal pipe with a constant 100 cm^2 cross sectional area. water flows rightward into the pipe at x = 0 with flow velocity 02m/sec at every point within the pipe intake area. at x=1, the rightward flow rate is 0.192 m/sec. assume the water is a conserved quantity in the pipe, so there must be a leak (a sink) somewhere in the pipe. 1. compute net volumetric flow of the source if the system to be in equilibrium. 2. now assume the pipe in the problem has no leaks. compute the net volumetric rate of change for the system.

Answers: 3

Answer

Physics, 22.06.2019 14:00

Acar travels in reverse. it covers 150 meters in 12 seconds what is the velocity of the car what is the speed of the car

Answers: 1

Answer

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

Answer

Physics, 23.06.2019 07:30

Neurons are components of the nervous system of the body that transmit signals as electrical impulses travel along their length. these impulses propagate when charge suddenly rushes into and then out of a part of the neutron called an axon. measurements have shown that, during the inflow part of this cycle approximately 5.6x10^11 na per meter, each with a charge of e enter the axon. how many coulombs of charge enter a 1.10 cm length of axon during this process

Answers: 2

Answer

You know the right answer?

The power emitted by the sun in the form of electromagnetic waves is about 4.00 1026 w. the distance...

Questions