Answer:
4 m/s²
Explanation:
The formula used here:
F = ma
F is force (80 N)
m is mass (20 kg)
a is acceleration
Since we need to calculate acceleration we will arrange the formula:
a = F ÷ m
Now substitute the values and solve
a = 80 ÷ 20
a = 4
The proper unit for this acceleration is m/s²
So the object accelerates at 4 m/s²
Answer and Explanation:
(a)The system consists of the spring the block + Earth.
They interact through some forces which are: Gravitational form + normal
forces + spring force.
(b)The two points are:
When the spring has compressed a distance of
When the spring is no longer compressed.
(c)1.53
0
d. 1.75
(e)1.51
The function of the final velocity is Not a linear one.
Answer:
C. The number of positive and negative charges can be the same.
Explanation:
Answer
given,
diameter = 6 m
depth = h = 1.5 m
Atmospheric pressure = P₀ = 10⁵ Pa
a) absolute pressure
P = P₀ + ρ g h
P = 10⁵ + 1000 x 10 x 1.5
P = 1.15 x 10⁵ Pa
b) When two person enters into the pool
mass of the two person = 150 Kg
weight of water level displaced is equal to the weight of person
ρ V g = 2 m g
V = 0.3 m³
Area of pool =
=
= 28.27 m²
height of the water rise
h = 0.0106 m
pressure increased
P = ρ g h
P = 1000 x 10 x 0.0106
P = 106.103 Pa
If there is less water in the bottle then the note played is lower, because there is more air to move around. This is one good hypothesis that could lead to a new experiment.
Hope that helps! ★<span> If you have
further questions about this question or need more help, feel free to comment
below or post another question and send the link to me. -UnicornFudge aka Qamar</span>