Aspaceship travels at 0.776c relative to earth. if the spaceship fires a small rocket in the forward direction, how fast (relative to the ship) must it be fired for it to travel at 0.926c relative to earth?

The velocity of rocket relative to ship is

Explanation:

Given that,

Velocity of spaceship relative to earth

Velocity of rocket relative to earth

We need to calculate the velocity of rocket relative to ship

Using formula of relativistic velocity

Put the value into the formula

Hence, The velocity of rocket relative to ship is

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: