Amber applies a net force of 35 n to pull her younger brother (32 kg) in a wagon (3 kg). at what rate does the wagon accerlerate a. 1.09 m/s2 b. 0.91 m/s2 c. 1.00 m/s2 d. it doesn’t accelerate because force and mass are equal

C. 1.00 m/s^2

Explanation:

We can solve the problem by using Newton's second law:

where

F is the net force acting on an object

m is the mass of the object

a is its acceleration

In this case, the net force applied by Amber is F=35 N, while the total mass of the brother+the wagon is

Therefore, we can re-arrange the previous equation to find the acceleration:

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:

in physics zero. in muscle fatigue could be high