To run the physics cart, the fan speed of the cart is manipulated. This is the variable. The cart accelerates due to the speed o
2 answers:
Answer:
The constant quantity of the cart is its mass m
Explanation:
When the fan of the cart rotates with an increased velocity the force on the cart increases which causes the cart to accelerate. Force and acceleration are variables in this case. Force on the cart is given by the equation
Where m is the mass of the cart and a is acceleration.
In this example, the force is exerted on the cart due to the rotation of the fan. Acceleration is produced due to this force. Thus acceleration is proportional to force.
mass is given by
So the mass of the cart remains constant.
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Answer:
The current in the wire is 31.96 A.
Explanation:
The current in the wire can be calculated as follows:
<u>Where</u>:
q: is the electric charge transferred through the surface
t: is the time
The charge, q, is:
<u>Where</u>:
n: is the number of electrons = 7.93x10²⁰
e: is the electron's charge = 1.6x10⁻¹⁹ C
Hence, the current in the wire is:
Therefore, the current in the wire is 31.96 A.
I hope it helps you!