Answer:sofa
Explanation:the weight of the mass of that object can be heavy (er) than the rest
Answer: The distance covered by a certain object which is travelling at a certain speed is calculated through the equation,
d = (V₀)t + 0.5at²
where d is the distance, V₀ is the initial speed, a is deceleration, and t is the time. Substituting the known values,
85 = (V₀)(t) + (0.5)(-0.43 m/s)(t²)
Because we are not given with the initial velocity, our answer would remain as the equation which is written above.
Explanation: Hope this helps
A: 0.7 -0.8 and 0hrs
B: 0.2 - 0.4 and 1.0 -1.1 hrs
C: 0-0.2 hrs and 0.8 - 1.0 hrs
D: 0.4 - 0.7 hrs
Answer:
PART A)
L = 97.4 dB
PART B)

PART C)
L = 67.9 dB
Explanation:
PART A)
level of sound is given as

now we have


PART B)
Since source is a spherical source
so here the intensity of sound is inversely depends on the square of the distance from the source



PART C)
level of sound is given as

now we have


Answer:
The force is of the weight <u>862,4 Newtons.</u>
<u></u>
Explanation:
We have the formula:
w = m * g
Data:
w = weight = ¿?
m = mass = 88 kg
g = gravity = 9,8 m/s
Replacing according formula:
w = 88 kg * 9,8 m/s
Resolving:
w = 862,4 N