To solve this problem it is necessary to apply the concepts related to double split conditions. The equation describing this effect is given by
or
Where,
d= distance between slits
m = Any integer, representing the repetitions of the spectrum
If is small, then and the previous equation can be given as
Here,
L = Length from screen with slits
y = distance between fringes
From this last equation we can realize that if the separation between the openings (d) is increased, the distance between the fringes (y) will decrease.
Therfore the correct answer is C. Decreases.
Answer:
Part A
-0.2kgm/s
Part B
+0.12m/s
Part C
-0.08kgm/s
Explanation
Momentum of a body is defined as the product of mass of the body band its velocity.
Momentum = mass × velocity
Change in momentum = m(v-u)
v is the final velocity of the body
u is the initial velocity of the body.
For cart A:
Mass m = 1.0kg
Initial velocity u = +0.70m/s(velocity before collision)
Final velocity' v = +0.5m/s(velocity after collision)
∆Momentum = 1(0.5-0.7)
= 1(-0.2)
= -0.2kgm/s
The x component of the change in the momentum of A is -0.2kgm/s
For cart B:
Similarly;
∆momentum = 0.1(1.6-0.4)
∆momentum = 0.1×1.2
∆momentum = +0.12kgm/s
The x component of the change in the momentum of B is +0.12kgm/s
Part C:
The sum of these two x components of the changes in momentum = (∆momentum)A + (∆momentum)B
= -0.2+0.12
= -0.08kgm/s
Answer:
C. The consumers in the marsh ecosystem make their own food.
Explanation:
Producers are the ones who make their own food via sunlight, air, etc. Consumers cannot make their own food, and therefore must consume (eat) other plants/animals to survive.
The temperature of the gas is 41.3 °C.
Answer:
The temperature of the gas is 41.3 °C.
Explanation:
So on combining the Boyle's and Charles law, we get the ideal law of gas that is PV=nRT. Here P is the pressure, V is the volume, n is the number of moles, R is gas constant and T is the temperature. The SI unit of pressure is atm. So we need to convert 1 Pa to 1 atm, that is 1 Pa = 9.86923× atm. Thus, 171000 Pa = 1.6876 atm.
We know that the gas constant R = 0.0821 atmLMol–¹K-¹. Then the volume of the gas is given as 50 L and moles are given as 3.27 moles.
Then substituting all the values in ideal gas equation ,we get
1.6876×50=3.27×0.0821×T
Temperature =
So the temperature is obtained to be 314.3 K. As 0°C = 273 K,
Then 314.3 K = 314.3-273 °C=41.3 °C.
Thus, the temperature is 41.3 °C.
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