Answer:
a) Not Accurate
b) Not Accurate
c) Accurate
d) Accurate
Explanation:
Part a
Not Accurate, because destructive interference would lead to maximum possible magnitude of < 3 m
Part b
Not Accurate, because constructive interference would lead to minimum possible magnitude of > 2 m
Part c
Accurate, because destructive interference would lead to maximum possible magnitude of < 3 m by varying the phase difference between two waves she can achieve the desired results.
Part d
Accurate, because constructive interference would lead to minimum possible magnitude of > 2 m by varying the phase difference between two waves she can achieve the desired results.
Answer: Heat energy is transferred from warmer objects to cooler objects.
Explanation:
Answer:
3.82 Ns
Explanation:
Time varying horizontal Force is given as
F(t) = A t⁴ + B t²
F(t) = 4.50 t⁴ + 8.75 t²
Impulse imparted is given as
![I = \int_{0}^{t}Fdt](https://tex.z-dn.net/?f=I%20%3D%20%5Cint_%7B0%7D%5E%7Bt%7DFdt)
![I = \int_{0}^{1}Fdt](https://tex.z-dn.net/?f=I%20%3D%20%5Cint_%7B0%7D%5E%7B1%7DFdt)
![I = \int_{0}^{1}(4.50 t^{4} + 8.75 t^{2})dt](https://tex.z-dn.net/?f=I%20%3D%20%5Cint_%7B0%7D%5E%7B1%7D%284.50%20t%5E%7B4%7D%20%2B%208.75%20t%5E%7B2%7D%29dt)
![I = ((0.9) (1)^{5} + (2.92) (1)^{3})](https://tex.z-dn.net/?f=I%20%3D%20%28%280.9%29%20%281%29%5E%7B5%7D%20%2B%20%282.92%29%20%281%29%5E%7B3%7D%29)
![I = 3.82 N-s](https://tex.z-dn.net/?f=I%20%3D%203.82%20N-s)
Answer:
The length of line is 78 cm or 0.78 m.
Explanation:
initial reading 2 mark
final reading 80 cm
The length of the line
= final reading - initial reading
= 80 - 2
= 78 cm
1 cm = 0.01 m
So, 78 cm = 0.78 m