Answer:
sorry about the other person but its b
Explanation:
¡Hellow!
For this problem, first, lets convert the seconds in hours:
5,4x10³ 5400
h = sec / 3600
h = 5400 s / 3600
h = 1,5
Let's recabe information:
d (Distance) = 386 km
t (Time) = 1,5 h
v (Velocity) = ?
For calculate velocity, let's applicate formula:
Reeplace according we information:
386 km = v * 1,5 h
v = 386 km / 1,5 h
v = 257,33 km/h
The velocity of the train is of <u>257,33 kilometers for hour.</u>
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Extra:
For convert km/h to m/s, we divide the velocity of km/h for 3,6:
m/s = km/h / 3,6
Let's reeplace:
m/s = 257,33 km/h / 3,6
m/s = 71,48
¿Good Luck?
Answer:
Electric field = 8.6364 × 10⁶ V/m
Explanation:
Given that:
The Voltage across the cell membrane = 76.0 mV
Also, 1 mV = 0.001 V
So, Voltage = 0.076 V
Given the thickness of the membrane = 8.80 nm
Also, 1 nm = 10⁻⁹ m
So, Thickness = 8.80 × 10⁻⁹ m
The expression for electric field is shown below as:
Electric field = 8.6364 × 10⁶ V/m
Displacement equals (Velocity times Time) plus half times the (acceleration times time squared). =. (48 * 4) + 1/2 * (12 *12^2) = 288meters
Answer:
C It will be closer to the mass of Vi–193.
Explanation:
The average atomic mass of vitellium will be closer to the mass of Vi–193.
From the geonormal abundance we can derive the average atomic mass or relative atomic mass of the compound.
Average atomic mass = sum of all the product of the mass of isotope x abundance of isotope
Average atomic mass = (10.861% x 187.9122) + (12.428% x 190.9047) + (76.11% x 192.8938)
Average atomic mass = 20.41 + 23.73 + 146.81 = 190.95amu