Answer:
v = u + a t
80 = 50 + a * 30
80 - 50 /30 = a
a = 30/30 = 1 m /s 2
s = u t + 1/2 at ^2
s = 50 * 30 + 1/2 * 1 * 30^2
s = 1500 + 1/2 * 900
s = 1500 + 450
s = 1950 m
Beams of X-rays are targeted at a cancerous tumor from outside the body
Explanation:
Mechanical waves helps to treat cancer when beams of x-rays are targeted at a cancerous tumor from outside the body. These beams are energetic and ionizing. This will cause severe destruction of the cancerous cell.
- In cancer therapy, ionizing radiations are used to destroy cancerous cells in living organisms.
- Controlled doses of some forms of radiations are particularly known good medical procedures for curing cancer.
- Other options are not ways in which mechanical waves helps to treat cancer.
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Lung cancer brainly.com/question/2533779
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The frequency of a wave is the number of waves that passes through a point in a certain time. The less waves that pass in a period of time the lower the frequency of the wave. The more waves that pass in a period of time the higher the frequency of the wave. When measuring wave length the time period used is usually one second.
Answer:
- Fx = -9.15 N
- Fy = 1.72 N
- F∠γ ≈ 9.31∠-10.6°
Explanation:
You apparently want the sum of forces ...
F = 8.80∠-56° +7.00∠52.8°
Your angle reference is a bit unconventional, so we'll compute the components of the forces as ...
f∠α = (-f·cos(α), -f·sin(α))
This way, the 2nd quadrant angle that has a negative angle measure will have a positive y component.
= -8.80(cos(-56°), sin(-56°)) -7.00(cos(52.8°), sin(52.8°))
≈ (-4.92090, 7.29553) +(-4.23219, -5.57571)
≈ (-9.15309, 1.71982)
The resultant component forces are ...
Then the magnitude and direction of the resultant are
F∠γ = (√(9.15309² +1.71982²))∠arctan(-1.71982/9.15309)
F∠γ ≈ 9.31∠-10.6°
Answer:
A law is defined as a description or a statement given after an observed phenomenon. A theory is a simplification of certain observational data as to how and why it happened.
Explanation:
I hope this helped solve your question.
