Waves have the
characteristic that they can of transmit energy. This characteristic depend
only on the medium and its properties. Electro-mechanical waves do not need
medium to transfer its energy, is capable of transmitting it through empty
space (vacuum).
<span>Mechanical
waves require a medium in order to transport their energy. Sound waves are an
example of mechanical way. They can not
travel through vacuum. </span>
Answer:
V = 27.46 m/s
Explanation:
given,
mass of the deer(m) = 135 Kg
speed of the deer (u) = 10.5 m/s
assuming,
mass of the car(M) = 900 Kg
initial velocity of car (v) = 30 m/s
using conservation of momentum
m u + M v = (M + m )V
V is the velocity of the car as deer is on the car
135 x 10.5 + 900 x 30 = (900 + 135 ) V
28417.5 = 1035 V
V = 27.46 m/s
so, the velocity of car is equal to V = 27.46 m/s
Answer:
The farthest distance is 
Explanation:
The angular resolution is mathematically represented as

Where Z is the distance between the car head lamp with a value Z = 1.4 m
L is the distance between the eye and the car
is the wavelength with a value 500 nm = 
d is the diameter of the eye with a value d = 0.50 cm = 
The maximum distance
is given as



rrrrrrr
Answer:

Explanation:
As we know that base of the slab is given as


now we know that rate of heat transfer is given as

here we know that

Also we have


