Answer:
the height h is 1.95 m above the floor
Explanation:
m = 2.0 kilogram
Ep = 39 J
g = 10 m/s²
h = ?
Ep = mgh
h = Ep ÷ mg
h = 39 ÷ (2×10)
h = 39÷20
h = 1.95 m
Every atom with 15 protons in its nucleus
is an atom of Phosphorus.
Take the radius of the Earth 6 370 km.Then:
The semimajor axis:a = 6 370 + 360 = 6 730 km
Semiminor axis:b = 6 370 + 180 = 6 550 km
Eccentricity:ε = √ (a2+b2) / a = √ (6 7302+65502) / 6 730 ≈ 1.4
Answer: 0 m
Explanation:
Let's begin by stating clear that movement is the change of position of a body at a certain time. So, during this movement, the body will have a trajectory and a displacement, being both different:
The trajectory is the <u>path followed by the body</u> (is a scalar quantity).
The displacement is <u>the distance in a straight line between the initial and final position</u> (is a vector quantity).
According to this, in the description Matthew's home is placed at 0 on a number line, then he moves 10 m to the park (this is the distance between the park and Mattew's home), then 15 m to the movie theatre until he finally comes back to his home (position 0). So, in this case we are talking about the <u>path followed by Matthew</u>, hence <u>his trajectory</u>.
However, if we talk about Matthew's displacement, we have to draw a straight line between Matthew's initial position (point 0) to his final position (also point 0).
Now, being this an unidimensional problem, the displacement vector for Matthew is 0 meters.
Answer:
Explanation:
wavelength
d = 0.190 mm = 0.190 × 10⁻³ m
D = 1.91 m
By using the formula:
The first maximum will appear at an angle from the beam axis