A student pulls on a rope attached to a box of books and moves the box down the hall. The student pulls with a force of 120 N at an angle of 30.0° above the horizontal. The box has a mass of 25.0 kg, and μk between the box and the floor is 0.27. Find the acceleration of the box

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:

hi i’m sorry to call us today so we will get back with y’all and we will have to do it haha omg was the day

another example of kinetic energy would be,

kinetic energy   >     moving energy

answer   >   letter choice (c),   a hammer falling off a table.

hope that !                                         : )

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it