Density is equal to mass divided by volume, so the density of the object is 10/2.5= 4<span> g/cm</span>
The correct option is D.
Destructive interference is said to occur when two waves superpose in such a way that they cancel each other out. The two waves are usually of equal frequency and opposite phase, the negative displacement of one wave collides with the positive displacement of the other wave, thus cancelling each other out.<span />
Answer:
F₀= 12 mg θ = 85.2º
Explanation:
When the force is applied the pendulum moves laterally, and the tension in the rope has components that reached a point balances the horizontal force. Let's apply make sure Newton
X axis
F -Tx = 0
F = Tx
Axis y
Ty -W = 0
Ty = W
Let's look for the tension components
cos θ = Ty / T
sin θ =Tx/T
Ty = T cos θ
Tx = T sin θ
Let's replace and solve the system of equations
F = T sin θ
mg = T cos θ
F / mg = tan θ
tan θ = 12 mg / mg
θ = tan -1 12
θ = 85.2º
Electricity.
Solar Energy
Wind Energy
In a home, the best option as a source of energy is electricity. Though some choose to use solar energy to power their devices, electricity is more cost effective.
a = (V - V₀) / t = (14 - 4) / 10 = 10 / 10 = 1 m/s²