What is half-life?
a. half-life is a term that describes the time it takes for half of a part...
What is half-life?
a. half-life is a term that describes the time it takes for half of a particle to disintegrate
c. half-life is a term that describes the time it takes for the amount of radioactivity to increase by one half.
b. half-life is a term that describes the time it takes for the amount of radioactivity to go down by one half.
d. none of the above
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Physics, 21.06.2019 21:30
Although light from the sun appears white, it is actually made up of a lot of different colors. this portion of the electromagnetic spectrum, we call white light is referred to as within the electromagnetic spectrum.
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Physics, 22.06.2019 03:30
What makes thermal imaging cameras useful? they can detect differences in color. they can detect differences in wave speeds. they can detect differences in temperature. they can detect mechanical waves.
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Physics, 22.06.2019 04:50
The position of a crate sliding down a ramp is given by x=(0.05t^3) m, y=(1.7t^2) m, z=(6โ0.85t^5/2) m, where t is in seconds. (a) determine the magnitude of the crate's velocity when t = 2 s. (b) determine the magnitude of the crate's acceleration when t = 2 s.
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Physics, 22.06.2019 11:20
Suppose a diode consists of a cylindrical cathode with a radius of 6.200ร10^โ2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.
Answers: 1
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