I think it's the first one
(last choice)
The speed increases from X to W because a component of the gravitational force acts in the direction of the velocity.
Answer:
A. To find increase in internal energy
We use
CV= f/2* R
=20.77J/molK
So change in internal energy is
nCvdt
So substituting
= 2 x 20.77x 60K
= 2493J
B.
We know that molar specific heat increase by R/2
So CV= (f/2+1)R
Which is 29.1J/milk
So
Increase in internal energy will be
nCvdt
= 2* 29.1*60
= 3490.2J
C. the translational energy is 3/2R
And the total molar specific heat capacity is 7/2R
So the fraction of energy in b due to K.E will be
3/7 * 3490.2
=1495.8J
<h2>
Answer:</h2>
The current will drop to half of its original value.
<h2>
Explanation:</h2>
To solve this problem, we must use Ohm's law that states that in a circuit the voltage
across a resistor is directly proportional to the current that flows through that circuit. In other words:

According to our problem, if the voltage in the circuit is held constant while the resistance double, that is
. So:

In conclusion, <em>the current will drop to half of its original value.</em>
Answer:
24 volts ÷ 4 amps = 6 ohms
Explanation:
We know that the Ohm's law has given the relationship between the current, voltage and the resistance of the wire. Mathematically, it can be written as :

Where
I is the current
R is the resistance
If current flowing is 4 amps and voltage is 24 volts. The formula to find the resistance will be :


R = 6 Ohms
Hence, the correct option is (d) " 24 volts ÷ 4 amps = 6 ohms ".