Answer:
8 μC
Explanation:
By definition, current is the rate of change of charge, so we can write the following equation for current I:
I = ΔQ / Δt
As charge must be conserved, all the charge carried by the current must add to the charge on the plates of the capacitor, so we can finf this incremental charge as follows:
ΔQ = I* Δt (assuming that current remains constant during the charging process)
⇒ ΔQ = 3 A* 2 μsec = 3 coul/sec*2 μsec = 6 μC
As the initial charge must be conserved also, the magnitude of the net electric charge of the capacitor must be as follows:
Qnet = Q₀+ ΔQ = 2 μC + 6 μC = 8 μC
Answer:
a) 2
b) 160 lb
Explanation:
A wedge is a triangular tool made up of wood, metal, stone or plastic.
Given that:
length (L) = 6 inches, height (H) = 3 inches and The effort load applied is 80 lb.
a) Mechanical advantage = Length / Height.
Substituting values:
Mechanical advantage = 6 inches / 3 inches = 2
Mechanical advantage = 2
b) Mechanical advantage = Load / effort
Load = mechanical advantage × effort
Load = 2 × 80 lb = 160 lb
Answer:
When a pilot pushes the top of the right pedal, it activates the brakes on the right main wheel/wheels, and when the pilot pushes the top of the left rudder pedal, it activates the brake on the left main wheel/wheels. The brakes work in a rather simple way: they convert the kinetic energy of motion into heat energy.
Answer:
A machine consumes energy whereas an engine produces energy. Engine converts heat energy to Mechanical Energy but machine converts all forms of energy to mechanical energy except heat energy. A engine runs a machine,without a engine a machine can't run.
Explanation:
Answer:
What you should do changes based on the hazards you're exposed to.
You should be aware of any hazards that are present.