Motor neurons in mammals transmit signals from the brain to skeletal muscles at approximately 25 m/s. estimate how much time in ms (10−3s) it will take for a signal to get from your brain to your hand.

The time it takes in milliseconds for the brain to transmit a signal to your skeletal muscles can be determined given the speed and distance. It was given that the signal travels at approximately 25 m/s while the distance between the brain and one' hand can be set to approximately 1 m. To obtain the time, we divide the distance by the speed and convert it to milliseconds.

The equation would be: (1 m/ 25 m/s)*(1000 ms/1 s) = 40 ms.

Thus, it will take 40 ms for the brain's signal to travel before it can command your skeletal muscles to react accordingly.

The answer is magnitude measures the effects of an earthquake on the area , while the intensity measures the strength of an earthquake.