Acube has a density of 1800 kg/m3 while at rest in the laboratory. what is the cube's density as measured by an experimenter in the laboratory as the cube moves through the laboratory at 84.0 % of the speed of light in a direction perpendicular to one of its faces? you may want to review

3317.44401 kg/m³

Explanation:

= Actual density of cube = 1800 kg/m³

= Density change due to motion

v = Velocity of cube = 0.84c

c = Speed of light =

Relativistic density is given by

The cube's density as measured by an experimenter in the laboratory is 3317.44401 kg/m³

electric

explanation:

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: