A:a diver jumping Off a diving Board And falling to the swimming pool below
Answer:
Nothing
Explanation:
Nothing would happen to the mass of the objects.
The mass of an object is constant.
However, the weight of the object depends on the gravitational attraction.
Weight is a force, and
f = mg
If g changes, then f changes.
Answer: acceleration is time derivative of speed.
When v(t) = 60 + 0.50t, is a(t) = v' (t) = 0.50 (m/s²)
Answer:
P = 1471500 [Pa]
Explanation:
We must remember that pressure is defined as the relationship between Force over the area.
where:
P = pressure [Pa] (units of pascals)
F = force [N] (units of Newtons)
A = area of contact = 4 [cm²]
But first we must convert from cm² to m²
A = 0.0004 [m²]
Also, the weight should be calculated as follows:
where:
m = mass = 60 [kg]
g = gravity acceleration = 9.81 [m/s²]
Now replacing:
And the pressure:
Because 1 [Pa] = 1 [N/m²]
Answer:
The diameter of mirror
Explanation:
Given that,
Wavelength = 2 μm
Resolution = 0.1
We need to calculate the diameter of mirror
Using formula of resolution
Put the value into the formula
Hence, The diameter of mirror