Answer:
A variable (often denoted by x ) whose variation does not depend on that of another.
Explanation:
Answer:
(a) 40.6 degree
Explanation:
When refraction takes place from slab to water, the critical angle is 60 degree.
Use Snell's law
refractive index of water with respect to slab
μs = 1.536
Now for slab air interface, the critical angle is C.
1 / 1.536 = Sin C
C = 40.6 degree
Out of the four the last one is true - "<span>radiation may stick around for a long time and cause cancer". The other three are false - some effects will be long-lasting, they may affect large areas, and are not necessarily apparent immediately.</span>
Answer:
4987N
Explanation:
Step 1:
Data obtained from the question include:
Mass (m) = 0.140 kg
Initial velocity (U) = 28.9 m/s
Time (t) = 1.85 ms = 1.85x10^-3s
Final velocity (V) = 37.0 m/s
Force (F) =?
Step 2:
Determination of the magnitude of the horizontal force applied. This can be obtained by applying the formula:
F = m(V + U) /t
F = 0.140(37+ 28.9) /1.85x10^-3
F = 9.226/1.85x10^-3
F = 4987N
Therefore, the magnitude of the horizontal force applied is 4987N
