Answer:
Statement 1: All balls hit the ground at the same time
Explanation:
When there is no resistance of air, the acceleration due to gravity experienced by all the bodies are same. So for falling bodies, neglecting the air resistance, the falling object will be weightless and therefore all the objects will hit the ground at the same time when there is nor air resistance and the objects are considered to be falling in vacuum.
Answer: 1.38g
Explanation:
Width of planting area = 100m
Field size = 6-hectares(14.425 acres)
Weight of 1000 black eye seed = 230g
1 lb = 453.4g
1 black eye seed = 230g/1000 = 0.23g = 0.00023kg
1 hectare = 10,000sq metre
6 hectare = 60,000sq metre
(Weight/Area) kg/m2
0.00023kg / 10,000 = 2.3×10^-8kg/m^2
And field size = 6hectares = 60,000m^2
(2.3×10^-8) × 60,000 = 0.00138kg of black eye seed
0.00138kg × 1000 = 1.38g
Assuming V1 is the anode and v2 the cathode (Anode is P region and Cathode is N)
Answer:
a) Reverse bias
b) Forward bias
c) Forward bias
Explanation:
Forward bias: It happens whenever the N region of the diode is more positive than the P region. Hence, the depletion zone increase ceasing the current through the circuit -> V1 -V2 < 0
Reverse bias: It happens whenever the P region of the diode is more positive than the N region. In this case, the depletion zone begins to shrink, if enough voltage is applied current could go through the circuit -> V1 - V2 > 0
a) V = V1 - V2 = 0 - 2 = -2 -> -2 is smaller than zero therefore, we have reverse bias
b) V = V1 - V2 = 4.5 - 2.8 = 1.7 -> 1.7 is greater than zero therefore, we have forward bias
c9 V = V1 - V2 = -1 - -1.3 = 0.3 -> 0.3 is greater than zero therefore, we have forward bias
Answer:
9%
Explanation:
Data obtained from the question:
Red (R) = 1
Green (G) = 3
Blue (B) = 2
Yellow (Y) = 4
Total = 1 + 3 + 2 + 4 = 10
Probability of getting a blue marble is given by P(B)
Probability of getting a yellow marble is given by P(Y)
Probability of getting a blue followed by a yellow marble is given by P(BY)
From the question given:
If we were to pull one marble out after the other, the probability of getting a blue and then a yellow marble is illustrated below
First pull:
P(B) = 2/10
2nd pull:
The total is 9, therefore P(Y) = 4/9
P(BY) = P(B) x P(Y)
P(BY) = 2/10 x 4/9
P(BY) = 8/90 = 0.09
Multiply by 100 to express in percent
P(BY) = 0.09 x 100 = 9%
Therefore, the probability of getting a blue and then a yellow marble is 9%
