There are loads of similarities, but there are differences and that's what you want!
Speed- Is usually referring to how fast an object moves, it is calculated by space per unit.
Velocity- Refers to the rate at which said object changes position in a certain direction. Usually calculated by the displacement of space per unit.
SO it sounds the same, but simple answer Velocity deals with direction, and speed does not!
An electric field has both magnitude and direction.
I don't think that's one of the first 3 choices.
Answer:
The gravitational force between m₁ and m₂, is approximately 1.06789 × 10⁻⁶ N
Explanation:
The details of the given masses having gravitational attractive force between them are;
m₁ = 20 kg, r₁ = 10 cm = 0.1 m, m₂ = 50 kg, and r₂ = 15 cm = 0.15 m
The gravitational force between m₁ and m₂ is given by Newton's Law of gravitation as follows;
Where;
F = The gravitational force between m₁ and m₂
G = The universal gravitational constant = 6.67430 × 10⁻¹¹ N·m²/kg²
r₂ = 0.1 m + 0.15 m = 0.25 m
Therefore, we have;
The gravitational force between m₁ and m₂, F ≈ 1.06789 × 10⁻⁶ N
Answer:
Explanation:
<u>Joule's Law in Electricity</u>
The Joule's law allows us to calculate the power dissipated in a resistor of resistance R through which goes a current I.
The relation between the voltage and the current is given by Ohm's law:
Solving for I and replacing int the first equation
Solving for V
Initial velocity =
acceleration in the downward direction = -9.8
Final velocity at the highest point = 0
Maximum height reached = 0.450 m
Now, Using third equation of motion:
Velocity with which the flea jumps =