Explanation:
Echo method formula for speed of sound : 2 x distance / time taken
2 x distance / 58 = 1540 m/s
2 x distance = 1540 m/s / 58 s
= 26.55172414 m
Distance = 26.55172414 / 2
= 13.27586207
= 13 m
Answer:
nothing, mass is not affected by gravitational force
Explanation:
Weight is the gravitational force a planet exerts on a mass on the surface.
It is the product of the mass of an object with the gravitational acceleration that the planet produces.
The weight is the gravitational force
where,
m = Mass of the object
g = Acceleration due to gravity = 9.81 m/s²
Mass is the property that matter has which opposes the force being applied to it. It is intrinsic to the object itself and does not change according to the gravitational force. But, the weight changes.
The fundamental mode of vibration of a wave is defined as that which has the LOWEST frequency
The force acting on the boulder bringing it down the mountain? Would be gravity. Not sure about any of the multiple choice options you have
Answer:
1.10 m
Explanation:
First, find the time it takes to land.
Given, in the y direction:
Δy = 1.12 m
v₀ = 0 m/s
a = 9.8 m/s²
Find: t
Δy = v₀ t + ½ at²
(1.12 m) = (0 m/s) t + ½ (9.8 m/s²) t²
t = 0.478 s
Next, find the distance traveled in that time.
Given, in the x direction:
v₀ = 2.30 m/s
a = 0 m/s²
t = 0.478 s
Find: Δx
Δx = v₀ t + ½ at²
Δx = (2.30 m/s) (0.478 s) + ½ (0 m/s²) (0.478 s)²
Δx = 1.10 m
