The answer is b. It serves as a link between membrane proteins on adjacent membranes.
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.
Use the
following formula to find the time meteorites take for a footprint to be
erased:
T = [(Impact
needed of a footprint)(4πr^2)]/[(impact rate)(Area of a footprint)].
Use
the following formula to find the area of a foot:
Area of
a foot = length of foot x width of foot
Substitute
the given values in the above equation to get area of a foot:
Area of
a foot = 25 cm x 10 cm = 250 cm^2
Convert
the radius of moon in kilometers to centimeters.
R =
1738 km = 1738 km (10^5 cm / km) = 1.738 x 10^8 cm
The
time meteorites take for a footprint to be erased:
T = (20)(4
π (1.738 x 10^8)^2) / (25 million / day) (250 cm^2) = 758.78 x 10^16 / 6250 x
10^6 /day = 1.21 x 10^9 days
Therefore,
the time meteorites take for a footprint to be erased is 1.21 x 10^9 days
<span> </span>
Explanation:
Centripetal force is:
F = m v² / r
where m is mass, v is velocity, and r is radius.
Force is proportional to mass, so if mass increases, then force also increases.
the answer is b trust me its b