Answer:
shrinks with all the fringes getting narrower
Explanation:
As the light passes through the slit, the diffraction pattern shrinks, as the waves have more opening to penetrate, and the fringes becomes more narrow as a result of that, The opposite happens as the conditions are reversed.
Answer:
Sometimes
Explanation:
Sometimes meaning in occasions. If it is a "vampire star" not likely because they also cause they also make novas happen by sucking the gas from another star.
7.9 g/cm3 means that iron weighs 7.9 grams per cubic centimeter. Ten cubic centimeters of iron would weigh ten times as much as one cubic centimeter or iron, or 79 grams.<span>
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1. Power.
Power is the rate of energy transfer or the rate at which work is done.
2. watt
Power=energy or work done/time=1 J/1s=1 watt (w)
3. Current times the voltage
E=QV
Q=I times t
E=VIt
p=E/t
p=VIt/t
p=VI
4.200 watts
p=VI=40 x 5=200 W
5. Amount of power available is significantly greater.
p=VI
When V increases, I must go down at the same time so that p doesn’t increase.
Since I is decreased, the power losses due to joule’s heating effect is decreased. The equation representing the energy loss for joule’s heating effect is:
E=I^2Rt
As I is decreased, the energy loss also decreases. Power=energy transferred/time and so as the energy loss due to Joule’s heating effect is decreased, the power loss is also decreased.
Answer:
Explanation:
a ) distance s = 12 m .
constant speed = 1.5 m/s
time taken to coast 12 m
= distance / speed
= 12 / 1.5 = 8 s
b ) initial velocity u = 2.5 m /s
final velocity v = 1.5 m /s
displacement s = 14 m
acceleration a = ?
v² = u² + 2 as
1.5² = 2.5² + 2 a x 14
a = - .1428 m /s²
= - 14.28 cm / s²
c )
v = ?
u = 2.5 m /s
s = 6 m
a = - .1428 m /s²
v² = u² - 2 as
= 2.5² - 2 x 6 x .1428
= 6.25 - 1.71
= 4.54
v = 2.13 m /s .