Explanation:
loud sound depends on amplitude, intensity, frequency and energy.
as already mention high intensity sounds are perceived as loud sounds.
and the intensity of the sound is the rate at which the energy through a cross sectional area of a medium. higher intensity means higher amplitude. if we put more energy as source means we providing higher amplitude vibrations to the particles which cause the increase in intensity result is louder sound.
Answer:
the work done on the car by the applied force is 75 J.
Explanation:
Given;
initial velocity of the car, v = 4 m/s
applied force in opposite direction, F = 5N
initial position of the car, x₀ = 5 m
final position of the car, x₁ = 20 m
displacement of the car, Δx = x₁ - x₀ = 20 m - 5m
= 15 m
The work done on the car by the applied force is calculated as follows;
W = F.Δx
W = 5 x 15
W = 75 J
Therefore, the work done on the car by the applied force is 75 J.
Answer:
About two weeks (15 days to be exact)
Explanation: Look at this cool emoji thing I did :)
Scroll fast!
Explanation:
Potential Energy = mg h mg = 240 N
80 = 240 h
h = 80 / 240 = 1/3 meter ( 33.3 cm)
Explain why ultra-high voltages are
used to carry electricity over transmission lines.
B. vivid language that paints a picture
C. a direct comparison between two things
D. an extreme exaggeration or overstatement