Metalloids 5. They act as _________
1 answer:
You might be interested in
The sleds speed when the spring returns toits uncompressed length is v = 0.03 m/s.
<u>Explanation</u>:
Given,
force constant = 42 N/cm = 0.42 N/m, mass m = 68 kg, spring x = 0.39 m
The potential energy, U, stored in the spring is
U = 1/2 kx^2
= 1 / 2 0.42
(0.39)^2
= 0.032 J
All its potential energy has been converted into kinetic energy since it has a uncompressed length.
K = 1/2 mv^2
v = sqrt (2K / m)
= √(( 2 0.032) / 68)
v = 0.03 m/s .
Answer:
The (minimum) thickness of the oil slick is 325 nm.
Explanation:
Let the (minimum) thickness of the oil slick =
Therefore:
2 = (
+
)*λ
/
(1)
similarly,
2=(
)*λ
/
(2)
Thus, equation 1 = equation 2
(+
*λ
= (
*λ
Where:
λ
λ
Therefore:
=650/390=5/3
This shows that,
=2
=1
Thus, using equation 2
=
Answer:
Explanation:
, where
<em> </em>= avg. velocity,
= final velocity, and
= initial velocity.