is the equation that represents the Joule's law of heating.
<h3>
Explanation:</h3>
Joule's law of heating defines the heat generated by any current flowing conductor is directly proportional to
1. Square of Current (I²),
2. Resistance of the conductor (R)
3. Time for which current is passed (t)
Hence, Heat generated = 
.....................(1)
By Ohm's Law, the potential difference (V) across a conductor is directly proportional to the current(I) flowing through it. The constant of proportionality is termed as resistance of the conductor (R).
...............................................(2)
From (2), Current (I) can be rewritten as
........................................................(3)
Substituting (3) in (1), we get
Answer:
9.495 m/s
Explanation:
initial horizontal speed, ux = 2.60 m/s
initial vertical speed, uy = 0
height, h = 4.60 m
acceleration due to gravity, g = 9.8 m/s^2
Let the speed of fish is v as it hits the water level.
Use third equation of motion in vertical direction
v = 9.495 m/s
Thus, the fish hits the water level with the speed of 9.495 m/s.
Given:
v = 11 m/s, the launch speed
h = 3.6 m, the height of the ceiling
Assume g = 9.8 m/s², and neglect air resistance.
Let θ = the launch angle, measured above the horizontal.
The initial vertical speed is
u = 11 sin θ m/s
At the maximum height of 3.6 m, the vertical velocity is zero.
Therefore
(11 sinθ m/s)² - 2*(9.8 m/s²)*(3.6 m) = 0
121 sin² θ = 70.56
sin²θ = 0.5831
sin θ = 0.7636
θ = sin⁻¹ 0.7636 = 49.8° ≈ 50°
Answer: 50° above the horizontal
Answer:
D. 30 Ω
Explanation:
R₁ + R₂ = 33
-0.0005 R₁ + 0.005 R₂ = 0
Solve the system of equations for R₁.
-0.0005 R₁ + 0.005 R₂ = 0
0.005 R₂ = 0.0005 R₁
R₂ = 0.1 R₁
R₁ + R₂ = 33
R₁ + 0.1 R₁ = 33
1.1 R₁ = 33
R₁ = 30
