Answer:
Freeze Fracture replication
Explanation:
<u>Freeze Fracture replication</u> is a technique that allows investigation of the microheterogeneity of a membrane so that one can see localized differences in different parts of the membrane.
Freeze fracture replication is a technique used with electron microscopy to splits frozen cell membranes apart for visualization of the membrane structure and the organization of proteins within the sea of phospholipids.
The four steps in making a freeze-fracture replication are
(i) rapid freezing,
(ii) fracturing,
(iii) replication and
(iv) replica cleaning.
Answer:
4 m/s
Explanation:
M = mass of the hammer = 8.91 kg
m = mass of the metal piece = 0.411 kg
h = height gained by the metal piece = 3.88 m
Potential energy gained by the metal piece is given as
PE = mgh
PE = (0.411) (9.8) (3.88)
PE = 15.6 J
KE = Kinetic energy of the hammer
Given that :
Potential energy of metal piece = (0.219) Kinetic energy of the hammer
PE = (0.219) KE
15.6 = (0.219) KE
KE = 71.2 J
v = speed of hammer
Kinetic energy of hammer is given as
KE = (0.5) M v²
71.2 = (0.5) (8.91) v²
v = 4 m/s
Answer:
Zero.
Explanation:
First we divide the ring into infinitely small elements, Now considering one of those small elements. The electric field due to this element of charge is cancelled by another small element of charge situated at dramatically opposite side of the ring.
In this way the fields due to all small elements of the ring are cancelled by each other.
Thus the electric field magnitude at the center of the ring will be Zero.
Answer:
Explanation:
Discount the time here; it's not important. It doesn't tell you how long it takes the car to stop, it only refers to reaction time, which means nothing in the scheme of things.
The useful info is as follows:
initial velocity = 20 m/s
final velocity = 0 m/s
a = -10 m/s/s
and we are looking for the displacement. Use the following equation:
Δx
where v is the final velocity, v₀ is the initial velocity, a is the deceleration (since it's negative), and Δx is displacement. Filling in:
Δx and
0 = 400 - 20Δx and
-400 = -20Δx so
Δ = 20 meters
