Answer:
The basic purpose for which most simple machines are designed is to reduce the effort (force) required to perform a simple task. To achieve this, the force applied must act over a longer distance or period of time resulting in the same amount of work being performed by a smaller force.
Answer: Renewable Resource
Explanation: There isn't a limited supply of water, which makes it a renewable resource.
Answer:
The answer is = 5.81*10-7 N/m
Explanation:
From the above question, the first step to take is to find the magnitude of the net force per unit length acting on wire 3 due to the currents in the other wires
Solution
Given
The magnitude of the net force per unit length moving on wire 3 due to the currents in the other wires is
= I₃* B
= I₃*[-μ₀I₁/(2π*2d) + μ₋₀I₂/(2πd) + μ₀I₄/(2πd) + μ₀I₅/(2π*2d)] (+y direction)
Thus,
= μ₀I₃/(2πd) * (-I₁/2 + I₁ + I₄ + I₅/2)
Therefore, the magnitude of the net force per unit length acting on wire 3 due to the currents in the other wires is = 5.81*10-7 N/m
Answer:
70 mph
Explanation:
We can write the position of the car at time t as
where is the speed of the car, while the position of the truck is
where
is the initial distance between the car and the truck (at 3:00 pm)
is the speed of the truck
The car overcomes the truck when they have same position, so
This occurs at 4:30 pm, so 1:30 h (1.5 h) after the initial instant. So, by using
t = 1.5 h
And solving the equation for , we find the speed of the car:
Answer:
a) The speed of the ball is 2.47 m/s (in -x direction)
b) The speed of the block, both just after the collision is 1.236 m/s (in +x direction)
Explanation:
Please look at the solution in the attached Word file.