Answer
I feel the answer is C because it could cause mental and physical trauma
Explanation:
Answer:
C. chemical energy from the batteries
Explanation:
Remote-controlled car or commonly called RC cars are toy vehicles that are controlled or propelled to move from a distance by a wire-connected remote that sends radiowaves to the receiver. According to this question involving the remote-controlled car Lena is playing with, a transmitter from the remote propels the wheel and axle to make the car move.
The car contains a battery cell that uses it's chemical energy as a source of power for the wheel and axle system. Hence, the chemical energy from the batteries of a remote-controlled car powers the wheel and axle to make the car move.
Part a)
Flow rate is defined as rate of volume flow
it is determined by
now if the radius of pipe is reduced then we assume here that liquid flow is ideal flow here and there is no change in the density of liquid.
So here we know that since mass is always conserved
so
so we have
now we can say from above equation that there is no effect on the flow rate is we change the radius of pipe
Part b)
now in order to find the speed of flow'
so final speed will be
here we have n = 3
so flow speed will be 9 times more than initial speed
Can I see a photo or can you comment the answer choices.
Answer:
The magnitude of the magnetic force this particle experiences is .
Explanation:
Given that,
Velocity v= (3i-5j+k) m/s
Magnetic field B=(i+2j-k) T
We need to calculate the value
We need to calculate the magnitude of the magnetic force this particle experiences
Using formula of magnetic force
Put the value into the formula
Hence, The magnitude of the magnetic force this particle experiences is .