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4 years ago

11

Which electromagnetic wave is used in dental scans?

2 answers:

julsineya [31]4 years ago

8 0

Answer:

X-rays are most often used to examine bones and teeth.

Hope this helps!

Darina [25.2K]4 years ago

7 0

Answer:

X-rays are most often used to examine bones and teeth. Magnetic resonance imaging uses radio waves and a magnetic field to create more detailed pictures of the inside of the body. This type of imaging is used to find tumors and other abnormalities in tissues that won't show up in X-rays.

Explanation:

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A dart is thrown horizontally with an initial speed of 10 m/s toward point P, the bull's-eye on a dart board. It hits at point Q

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D=s(t) so it would be d=10(.19) d=.19 FOR BITH SNDWERS

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4 years ago

Which lighting direction is used to create silhouettes?

Ivahew [28]

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During a testing process, a worker in a factory mounts a bicycle wheel on a stationary stand and applies a tangential resistive

Alex

Answer:

616.223684211 N

Explanation:

$F_r$ = Resistive force on the wheel = 115 N

F = Force acting on sprocket

$r_2$ = Radius of sprocket = 4.75 cm

$r_1$ = Radius of wheel = 25 cm

Moment of inertia is given by

$I=mr_1^2\\\Rightarrow I=1.7\times 0.25^2\\\Rightarrow I=0.10625\ kgm^2$

Torque

$\tau=I\alpha\\\Rightarrow \tau=0.10625\times 4.9\\\Rightarrow \tau=0.520625\ Nm$

Torque is given by

$\tau=Fr_2-F_rr_1\\\Rightarrow F=\dfrac{\tau+F_rr_1}{r_2}\\\Rightarrow F=\dfrac{0.520625+115\times 0.25}{0.0475}\\\Rightarrow F=616.223684211\ N$

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3 years ago

According to the Law of Reflection, the angle of incidence the angle of reflection. O A. is greater than B. is less than C. equa

Amanda [17]

Answer:

C. Equals

Explanation:

Law of reflection Equals the angle of incidence

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3 years ago

7. How many forces are acting on this object? *<br> Fnorm<br> Ffrict<br> Fapp<br> Fgray<br> Å

faust18 [17]

Answer:

4

Explanation:

As you can see in the free body diagram there are 4 forces acting on the body.

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3 years ago