Answer:
A search engine, allows the person to search upon the internet for content using 'keywords'.
Answer:
i. The pressure of due to the water, <em>P</em>, is given according to the following equation;
P = ρ·g·h
Where;
ρ = The density of the water (a constant) = 997 kg/m³
g = The acceleration due to gravity = 9.81 m/s²
h = The height of the water (minimum h = h₁, maximum h = h₂)
The pressure is directly proportional to the water height, and we have;
The pressure, <em>P</em>, will be maximum when the water height, <em>h</em>, is maximum or h = h₂, which is the level DC
ii. The thrust = The force acting on the body = Pressure × Area
The maximum areas exposed to the water are on side AB and DC
However, the pressure at level DC, which is the location of the maximum pressure, is larger than the pressure at level AB, therefore, the maximum thrust will be at the level DC
Explanation:
Answer:
they amplitude modulation
and they ferequency modulation
Explanation:
The difference is in how the carrier wave is modulated, or altered. With AM radio, the amplitude, or overall strength, of the signal is varied to incorporate the sound information. With FM, the frequency (the number of times each second that the current changes direction) of the carrier signal is varied.
hope it helps
Answer:
A. They travel faster in a solid than other mediums
Explanation:
Sound waves travel faster in solids because the density of solids is higher than that of liquids which means that the particles are closer together and sound can be transmitted more easily.
Answer:
The average acceleration of the rocket, a = 8.5 m/s²
Explanation:
Given that,
The upward force of the rocket, F = 1700 N
The time duration of rocket exerted the force, t = 8 s
The mass of the rocket, m = 200 Kg
The force exerted by the rocket is equal to the product of its mass and acceleration.
Therefore, the formula for force
<em> F = m x a</em>
a = F / m
Substituting the given values in the above equation
a = 1700 N / 200 Kg
= 8.5 m/s²
Hence, the acceleration of the rocket is, a = 8.5 m/s²
