Answer:
0.0816 kgm/s
Explanation:
From the question,
Momentum of the pellet just before it hits the modelling clay is = (mass of the pellet+ mass of the truck clay)×initial velocity of pellet.
P =(M+m)u...................... Equation 1
Where P = initial momentum of the pellet, m = mass of the pellet, u = initial speed of the pillet, M = mass of the truck
Given: m = 2 g = 2/1000 kg = 0.002 kg, u = 0.8 m/s, M = 0.1 kg
Substitute these values into equation 1
P = (0.002+0.1)0.8
P = (0.102)0.8
P = 0.0816 kgm/s
Answer:
t = 402 years
Explanation:
To find the number of year that electrons take in crossing the complete transmission line, you first calculate the drift speed of the electrons. Then, you use the following formula for the current in a wire:
(1)
n: number of mobile charge carrier per volume = 8.50*10^28 e/m^3
q: charge of the electron = 1.6*10^-19 C
vd: drift velocity of electron in the metal = ?
A: cross sectional area of the wire = π r^2 = π (0.02m/2)^2 = 3.1415*10^-4 m^2
I: current in the wire = 1110 A
You solve the equation (1) for vd:
Next, you calculate the time by using the information about the length of the line transmission:
hence, the electrons will take aproximately 402 years in crossing the line of transmission
Answer:
Because the 'ing' in the English language is added to certain verbs to make them nouns.
Explanation:
Hope this helps :D
It moves closer or farther to the protons and neutrons. Hope this helps.
climate change affects: earths atmosphere
A warming atmosphere affects more than just air temperatures
<u>causes wild weather such as</u>
droughts are becoming more common and intense
rainstorms are also becoming more powerful
it provokes dangerous floods as well.
<em>×║hope this helps somewhat║×</em>
