Answer:
The accurate statements are
2. The train is not an inertial frame of reference.
5. The train could be moving at a constant velocity in a circular path.
8. The train must be undergoing acceleration.
Explanation:
As we observe that the string forms an angle with the horizontal
we can formulate the force equation relevant to the given ball
similarly in the Y direction
Thus we conclude
This leads us to deduce that the train is accelerating with an acceleration identical to that of gravity
The correct statements will be
2. The train is not an inertial frame of reference.
5. The train could be moving at a constant speed in a circular path.
8. The train must be experiencing acceleration.
Let A represent the area of each plate. According to Gauss's Law, the electric field present between the plates can be derived.
Answer:
The runner's deceleration is -23.33 
Given:
Initial speed = 3.5 
Final speed = 0
Time taken = 0.15 s
To determine:
Deceleration of the runner =?
Used Formula:
Using the first equation of motion,
v = u + at
Where, v = final speed
u = initial speed
a = deceleration
t = duration
Solution:
<pusing the="" first="" equation="" of="" motion="">
v = u + at
Where, v = final speed
u = initial speed
a = deceleration
t = duration
0 = 3.5 + a (0.15)
-3.5 = 0.15 (a)
a = 
a = -23.33
The negative sign indicates that this represents deceleration.
Hence, the deceleration of the runner is -23.33
</pusing>
Answer:
The output power of the circuit is 3 Watts.
Given:
a loss in decibels = 3 dB
Input power = 6 Watts
To find:
What is the output power?
Formula used:
Output power = Input power × loss in ratio
Solution:
3 dB loss corresponds to a ratio of 0.5
Output power can be calculated as follows:
Output power = Input power × loss in ratio
Output power = 6 × 0.5
Output power = 3 Watts
Therefore, the output power of the circuit is 3 Watts.
Recall this formula for a device operating in a direct current circuit:
P = IV
In this equation, P stands for the power emitted by the device, I signifies the current passing through the device, and V represents the voltage drop across it.
Using ampere for current and volt for voltage means that multiplying current by voltage gives you power measured in watts.
