Answer:
Explanation:
A solid is Sphere is somehow place inside a solid cube and the system is heated .
Material of cube and Sphere is same therefore coefficient of volume expansion is same for both shapes.
change in volume is given by
where
As initial volume of Cube is more than the sphere therefore Cube will expand more keeping other two factors same.
Measure the length of one side and then cube the answer. So if x represents the measurement of one side, x³ will give you the volume.
Answer:
1. Magnetic force = 4.56*10^-12 N
2. Acceleration = 5.01 *10^18 m/s^2
3. A) The direction of the moving electron will change but its speed will remain constant.
Explanation:
Given Data:
B = 0.0040 T North
q = 1.6*10^-19 C
Mass of electron = 9.1*10^-31 kg
V = 9.5% of speed of light
= 9.5% *3*10^8
= 28.5*10^6 m/s west
So, B and v are perpendicular to each other.
Therefore, ∅ = 90°
1, Calculating the magnetic force using the formula;
F = qvBsin∅
= 1.6*10^-19 * 28.5*10^6*sin90
= 4.56*10^-12 N
Therefore, the strength of the force = 4.56*10^-12 N
2. Calculating acceleration using the formula;
F = ma
a = F/m
= 4.56*10^-12 /9.1*10^-31
= 5.01 *10^18 m/s^2
3. A) The direction of the moving electron will change but its speed will remain constant.
Answer:
C
Explanation:
Thin film interference is most constructive or most destructive when the path length difference for the two rays is an integral or half-integral wavelength, respectively. That is, for rays incident perpendicularly, 2t = λn, 2λn, 3λn, . . . or 2t = λn/2, 3λn/2, 5λn/2 , .....
We see a constant phase shift off λn/2. Hence option C
Answer:
m = 9.6 g
Explanation:
Thermal energy given to helium gas at constant volume is given as
so here we have
so we have
now we know that
for oxygen gas we have
for same amount of heat we have