(A) It will 100 times larger than the original force.
Answer:
d) Law of Conservation of Energy
Explanation:
The first law of thermodynamics states that energy can neither be created nor destroyed; energy can only change from one form to another.
For multiple choice you can use an elimination method. If you remember the law then you know it's not A or C because "energy cannot be created nor destroyed", and it's not B because it has nothing to do with mass.
Hope this helps!
The formula that relates the 3 variables, namely: mass,
volume, and density is: Density = mass / volume.
Let us identify each variable:
Density - more accurately called the volumetric mass density of a
substance is its mass per unit volume. It is a key concept that examines how
materials communicate in a lot of things, i.e weather, material sciences,
engineering, and other fields of science.
Mass – defined as a property of
a physical body in Physics, and when a net force is applied,
it results to the measure of a specific
object’s resistance to acceleration.
Volume - <span>contained or
occupied by the space of a substance or shape (either by a solid, liquid, gas
or plasma state)</span>
Answer:
The distance is
Explanation:
From the question we are told that
The positive charges is
The distance of separation is
Generally at the point where the electric field is zero would be a point where
The electric field due to = The electric field due to
Generally the electric field due to is mathematically represented as
Since we are taking our reference from then the electric field due to is mathematically represented as
So
Answer:
1. k = 183.33 N/m
2. E = 0.33 J
3. x(t) = 0.06cos(2πt)
Explanation:
1. Determine the spring constant of the spring.
To determine the spring constant, we use hooke's law:
F = kΔx
where
F is the force = 11 N
Δx is the displacement = 0.06 m
k is the spring constant
k = F/Δx
k = 11/0.06 = 183.33 N/m
2. Determine the total energy of the system
the total energy(E) = Δ = 0.5 × 183.33 × 0.06² = 0.33 J.
Therefore the total energy of the system is 0.33 J
3. Write an expression x(t) for the motion of the cart. Assume the frequency f=1Hz. Express your answer in terms of the variable t and constant pi.
The expression for the motion of the cart x(t) is given by:
x(t) = Δxcos(2πft)
where the frequency f = 1 Hz
x(t) = 0.06cos(2π ×1 × t)
x(t) = 0.06cos(2πt)