4 years ago

Which type of radiation detection device uses a phosphor-coated surface to detect radiation?

Physics

2 answers:

labwork [276]4 years ago

8 0

<span>scintillation counter

</span>

insens350 [35]4 years ago

4 0

Answer:

B: scintillation counter

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Answer:

364.4 J

Explanation:

I = Moment of inertia of the forearm = 0.550 kgm²

v = linear velocity of the ball relative to elbow joint = 17.1 m/s

r = distance from the joint = 0.470 m

w = angular velocity

Using the equation

v = r w

17.1 = (0.470) w

w = 36.4 rad/s

Rotational kinetic energy of the forearm is given as

RKE = (0.5) I w²

RKE = (0.5) (0.550) (36.4)²

RKE = 364.4 J

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c. A car was running with a velocity of 20m/s. what will be its velocity after 30s if it's acceleration is 5m/s2

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$\large \mathfrak{Solution : }$

let's use first equation of motion to solve this ;

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