Answer:
All the hairs on the child's head must gain the same type of charge. Like charges repel so the strands of hair experience a force that pushes them away from each other.
Explanation:
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Answer:
A. The volume occupied by the molecules can cause an increase in pressure compared to the ideal gas.
D. As attractive forces between molecules increase, deviations from ideal behavior become more apparent at relatively low temperatures.
Explanation:
as we know by real gas equation

while ideal gas equation is given as

so from above formula we can say that net pressure is increased in real gas
Also we know that all real gas will close to behave like ideal gas when the pressure of the real gas is low and temperature of the gas is high
So above are the correct observations
Answer:
(a). The average speed of the car is 12.75 m/s
(b). The distance is 43.35 m.
Explanation:
Given that,
Initial speed = -25.5 m/s
Final speed = 0
Time = 3.4 s
(a). We need to calculate the average speed
Using formula of average speed

Put the value into the formula


(b). We need to calculate the acceleration
Using equation of motion




We need to calculate the distance
Using equation of motion



Hence, (a). The average speed of the car is 12.75 m/s
(b). The distance is 43.35 m.
In series connections, the flow of electrons follow the same path as the current remains constant in all the elements of the circuits.
And the total resistance of the circuit increases as more resistors are added to the circuit in serial manner.
Option A and D
<u>Explanation:</u>
A circuit consists of number of passive and active devices in it. And depending upon the connections between the passive devices, the flow of current and potential drop across them will be specified.
Like if the passive devices are connected parallel to each other, the current flow through each device will vary but the voltage drop will be same. Similarly, if the passive devices are connected in series, then the current flow will be constant in the devices but the potential drop will vary.
Thus, in series connections, the flow of electrons follow the same path as the current remains constant in all the elements of the circuits. And the total resistance of the circuit increases as more resistors are added to the circuit in serial manner.