The transfer of energy through matter by the direct contact of particles is called conduction
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
Answer:
1960Joules
Explanation:
Since we are not told what too find, we can as well find the Gravitational Potential Energy.
GPE = mass * acceleration due to gravity * height
GPE = 100*9.8 * 2
GPE = 980*2
GPE = 1960Joules
Hence the gravitational potential Energy is 1960Joules
Answer:
d = 100.8 ft
Explanation:
As we know that initial speed of the van is 40 miles then the stopping distance is given as 70 feet
here we know that
so here we have
now again if the speed is increased to 48 mph then let say the stopping distance is "d"
so we will have
now divide the above two equations