Adistance is calculated from the equation d gt2. g is exactly known to be 9.8014 m/s and t is measured to be 2.4 0.2 s. what is the distance and the uncertainty in the distance?

Explanation:

The distance covered by an object is given by the following equation as :

..............(1)

Where

g is the acceleration due to gravity

t is the time

The value of t is measured to be,

To find the distance covered, put the value of t = 2.4 s in equation (1).

d = 28.224 meters

To find the uncertainty in the distance, put the value of t = 0.2 s in equation (1) as :

d = 0.196 meters

Hence, this is the required solution.

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

electrical power