Answer:

Explanation:
The magnetic field B inside long solenoid with current I is given as

where
N is number of turn of solenoids = 1140 turns

I is current that passes through solenoid
L is length along which current pass = 0.350 m
plugging value to get required value of current


After the ball reaches the top and begins its return back down, it's just a falling object that's been dropped.
The amount that its downward speed increases every second is just the acceleration of gravity on Earth.
That's <em>9.81 meters per second</em> every second.
Hi there!
1.
The period of a pendulum can be calculated using the following equation:

T = period (s)
L = length of string (m)
g = acceleration due to gravity (m/s²)
Plug in the values:

2.
Calculate the period:

Frequency is the reciprocal of the period, so:

Answer:
K = 3.1 8 × 10⁴ Nm
Explanation:
Given:
m = 68 Kg
x= 2.1 × 10 ⁻² m (in (2.1×10−2 mm) i think m is repeated just like kgkg in the start of question)
g=9.81 m/s²
K= ?
According to Hooke's Law
F = K x
also F=mg
⇒ mg = Kx
⇒ K = mg/x
K= 68 Kg × 9.81 m/s² / 2.1 × 10 ⁻² m
K = 3.1 8 × 10⁴ Nm
I need to answer this with 20 characters so hey wasssup