Answer:
Radiation therapy uses high-energy particles or waves, such as x-rays, gamma rays, electron beams, or protons, to destroy or damage cancer cells.Hope that helps
We know that rate of acceleration
is constant, which means change of velocity is constant (velocity changes in a
linear way). The boat coasted for 11 meters and its speed decreased by 1 m/s.
Since deceleration is constant, we can find out how much time the boat spent
coasting by dividing 11 meters (distance traveled) by average speed ((2.6+1.6)/2),
which gives us 11 /2.1 = 5.238 seconds. The rate of deceleration is change in
velocity divided by time. -1 m/s divided by 5.238 seconds = -.19m/s/s.
The third one! :) Hope you live up to what ya promised man lol.
When light passes from one medium to another at an angle, it may refract, or bend, according to Snell's law:
n₁sin(θ₁) = n₂sin(θ₂)
n₁ = index of first medium, θ₁ = angle of incidence, n₂ = index of second medium, θ₂ = angle of refraction
Given values:
n₁ = 1.33 (water), θ₁ = 45.0°, θ₂ = 40.3°
Plug in and solve for n₂:
1.33sin(45.0°) = n₂sin(40.3°)
n₂ = 1.454
I looked up this value on the HyperPhysics indices of refraction table... The index we calculated is closest to 1.46, which is that of fused quartz.
