<u>Answers</u>
1) 3,840 N
2) 80 m
<u>Explanations</u>
Centripetal force is the force that maintenance objects that are moving in a circular motion.
F = mv²/r
= (1500 × 16²)/100
= (1500×256)/100
= 384000/100
= 3,840 N
2) F = (mv²)/r
6000 N = (1200 × 20²)/r
r = (1200 × 400)/6000
= 480,000/6000
= 80 m
Answer:
4.42 x 10⁷ W/m²
Explanation:
A = energy absorbed = 500 J
η = efficiency = 0.90
E = Total energy
Total energy is given as
E = A/η
E = 500/0.90
E = 555.55 J
t = time = 4.00 s
Power of the beam is given as
P = E /t
P = 555.55/4.00
P = 138.88 Watt
d = diameter of the circular spot = 2.00 mm = 2 x 10⁻³ m
Area of the circular spot is given as
A = (0.25) πd²
A = (0.25) (3.14) (2 x 10⁻³)²
A = 3.14 x 10⁻⁶ m²
Intensity of the beam is given as
I = P /A
I = 138.88 / (3.14 x 10⁻⁶)
I = 4.42 x 10⁷ W/m²
Explanation:
It is given that,
Length of the solenoid, l = 1.39 m
Diameter of the solenoid, d = 3.2 cm = 0.032 m
Radius of solenoid, r = 0.016 m
Magnetic field inside the solenoid, 
We need to find the length of the wire forming the solenoid. The magnetic field inside the solenoid is given by :
n is number of turns per unit length
N = 1740.04
The total length having N loop is,
L = 174.92 m
So, the length of the wire forming the solenoid is 174.92 meters. Hence, this is the required solution.
Answer:
The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object
The answer would be solids
