Answer:
Reflection involves a change in direction of waves when they bounce off a barrier. Refraction of waves involves a change in the direction of waves as they pass from one medium to another.
Answer:
Explanation:
from the ideal gas law we have
PV = mRT
HERE R is gas constant for dry air = 287 J K^{-1} kg^{-1}
We know by ideal gas law
for m_2
WE KNOW
PV = mRT
V, R and T are constant therefore we have
P is directly proportional to mass
The answer is 4,045.1 meters
Answer:
D
Explanation:
Work is not a vector but it is a scalar
Given:-
- Time taken by the particle (t) = 6 s
- Average speed (v) = 40 m/s
To Find: Distance (s) travelled by the particle.
We know,
s = vt
where,
- s = Distance travelled,
- v = Speed &
- t = Time taken.
Putting the values,
s = (40 m/s)(6 s)
→ s = 240 m ...(Ans.)
