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2 years ago

8

The table above lists the wavelength range, frequency range, possible uses, and hazards of the seven types of electromagnetic ra

diation. Which type of radiation helps doctors image the interior of the human body but also causes cell damage?
A.
microwave
B.
infrared
C.
radio wave
D.
X-ray

1 answer:

m_a_m_a [10]2 years ago

6 0

I think it's D caz X-ray scans can diagnose possibly life-threatening conditions such as blocked blood vessels, bone cancer, and infections. However, x-rays produce ionizing radiation—a form of radiation that has the potential to harm living tissue. However, the risk of developing cancer from radiation exposure is generally small.

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Thiết bị nào sau đây không phải là nguồn điện

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Thiết bị không phải nguồn điện:

Đáp án D

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3 years ago

A projectile is launched at a 30° angle relative to the

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3 years ago

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It takes a car traveling at 18 m/s, 240 seconds to reach Chick-Fil-A from the school. Determine how far Chick-Fil-A is from the

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The requested distance is 4320 meters

Explanation:

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3 years ago

A 4.0 kg circular disk slides in the x- direction on a frictionless horizontal surface with a speed of 5.0 m/s as shown in the a

finlep [7]

Solution :

Let $m_1=m_2=4$ kg

$u_1 = 5$ m/s

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So applying conservation of momentum in the y-direction,

$0=m_1 .v_1_y -m_2 .v_2_y$

$v_1_y = v_2_y$

$v_1 . \sin 60=v_2. \sin 30$

$v_2 = v_1 \times \frac{\sin 60}{\sin 30}$

$v_2=1.732 \times v_1$

Therefore, the disk 2 have greater velocity and hence more kinetic energy after the collision.

Now applying conservation of momentum in the x-direction,

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$u_1=v_1_x+v_2_x$

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$5=v_1. \cos 60 + 1.732 \times v_1 \cos 30$

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2 years ago

Two point charges, initially 2.0 cm apart, experience a 1.0 N force. If they are moved to a new separation of 0.25 cm, what is t

den301095 [7]

Explanation:

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$F\propto \dfrac{1}{r^2}$

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3 years ago