the water specific heat will remain at 4.184.
Acceleration = r w² radius r = 0.82 meter angular velocity w
4.7 = 0.82 w²
So w = 2.394 radians / sec
Time period T = time duration for completing one revolution = 2 π / w
= 2π / 2.394 = 2.624 seconds
Answer: 1.26kN
Explanation:
This kind of force that keeps a body moving in a circular path is known as the centripetal force (F). This force depends on the mass(m), velocity(v) and radius of the circular path in which the body moves (r).
Mathematically,
F = mv²/r
According to the question
Mass = 80.6kg
velocity = 3.34m/s
radius = 0.714m
F = 80.6×3.34²/0.714
F = 1259.3N
F = 1.26kN
Note that 1000N = 1kN
It's acceleration a = 20 / 7 = 2.857 ms^-2.
Using the equation of motion under constant acceleration:
Distance travelled = 1/2 * a * t^2
= 1/2 * 2.857 * 7^2
= 70.00 m (to the nearest hundredth).
Biot-Savart Law - Magnetic field around a straight conductor carrying a current I.
B = μ_0 I/2πr
where:
B is strength of magnetic field in T.
μ_0 is permeability of free space = 1.25664 x 10^ -6 T-m/A.
I is current in A.
r is distance from conductor in m.
<span>So I = 2πrB /μ_0</span>