In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the reception of such waves and their perception by the brain.
Answer:
115.6 J
Explanation:
= mass of the block = 3.7 kg
= final speed of the block = 0 ms⁻¹
= initial speed of the block = 7.9 ms⁻¹
= work done on the block
Using work done - change in kinetic energy theorem, we have
I’m sorry please forgive me luck is coming you way
Answer:
speed and direction
Explanation:
speed is a scalar quantity and velocity is a vector quantity which has a direction and a magnitude!!!!!
Answer:
L = 0.882 m
Explanation:
This problem can approximate the bell and the clapper as two pendulums, one a simple pendulum and the other a physical pendulum.
Let's start by analyzing the keystone that is a simple pendulum, with angular velocity
w₁ = √ g / L
The angular velocity is related to the frequency and period
w = 2π f = 2π / T
T₁ = 2π √ L / g
We approach the bell to a physical pendulum, the angular velocity is
w₂ = √ mg d / I
Where m is the mass of the field, d the distance to the pivot point and I the moment of inertia
T₂ = 2π √ I / Mgd
In this case, they indicate that the two bodies have the same period
T₁ = T₂
2π √ L / g = 2π √ I / M g d
L / g = I / M g d
L = I / M d
Let's calculate
L = 18.0 / (34.0 0.60)
L = 0.882 m
