Answer:
50volts
Explanation:
Each of the resistance is 10ohms. 2 in series and 2 in parallel. it means the 2 parallel can combines with total of 10×10÷(10+10)= 5ohms and combine in series with 10ohms which is 10+10+5= 25ohms. in series connection, we have same current flowing. therefore the voltage source will be 25ohms × 2amps = 50volts
The correct answer is the following.
The forces that act on the piano are: 2) gravitational force acting on the piano (piano's weight). 5) force of the floor on the piano (normal force). 7) force of Chadwick on the piano.
As we see in the picture that I have attached is Chadwick pushing the piano in a horizontal plane. So Chadwick is applying a force that produces an acceleration. It is his force on the piano plus the acceleration of the weight of the piano, it's a gravitational force. This is pure physics applied to an object.
The speed of an object when it hits the ground from a given height on a given planet is required.
The speed of the boulder before it strikes the ground is 51.41 m/s.
m = Mass of boulder = 650 kg
s = Displacement = 56 m
u = Initial velocity = 0
v = Final velocity
Surface gravitational field =
This means surface gravitational field is acceleration due to gravity on the planet.
g =
From the kinematic equations of motion we have
The speed of the boulder before it strikes the ground is 51.41 m/s.
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If the velocity is constant, then the position/time graph has a constant slope, meaning a straight line.
The slope may be any constant value ... positive, negative, or zero.
-∞ < slope < +∞