Answer:
frictional force, should be applied to the machine
Of the following given choices;
- Electrical
- Sound
- Mechanical
- Gravitation
The answer is; gravitational.
When the delivery man pushes the doorbell, he is utilizing mechanical energy. This energy is later converted to electrical energy that travels through a circuit to the inside of the house. An actuator then converts the electrical energy to sound that is heard inside the house.
Because there is no horizontal force on the object, and we all know what happens to velocity in a direction where there is no force.
Answer:
<h3>(A) The width
m</h3><h3>(B) The new width is
m</h3>
Explanation:
Given :
Focal length 
Maximum aperture 
Wavelength 
m
(A)
From rayleigh criterion,
rad
From angle formula,
Where 
12 m ( given in example )
m
m
(B)
We know that 
is proportional to the 
and inversely proportional to the 
so we write the new width, here is 5.5 times larger than above case
m
<span>C. Measure the soil's volume and then the volume of water that the soil can absorb.</span>
