7. Jezabelle was applying her makeup when she drove into Albuquerque migns busy
1 answer:
100000N
Explanation:
Mass of car = 1300kg
velocity of car = 11m/s
time = 0.14s
Unknown:
Force = ?
Solution:
To find the force experienced by Jezabelle's car,
Newton's second law :
F = ma = m
where a =
v =final velocity
u= initial velocity
t = time taken
F = 1300 x = 102142.85N rounding off 100000N
Learn more:
Acceleration brainly.com/question/3820012
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The average speed will be 2.38×10⁶ m/sec.The average speed of an object indicates the pace at which it will traverse a distance. The metric unit of speed is the meter per second.
<h3>What is the average speed?</h3>The total distance traveled by an object divided by the total time taken is the average speed.
The speed calculated at any particular instant of time is known as the instantaneous speed.
Given data;
Distance travelled = 4.12x10¹⁶ meter
Time period= 1.73x10¹⁰ sec
The average speed is found as
Hence, the average speed will be 2.38×10⁶ m/sec.
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Answer:
30.5 x 10³ min.
Explanation:
Atomic weight of aluminium = 27
For the reaction
Al⁺³ + 3e = Al
3 mole of electron is required by 1 mole of aluminium
3 x 96500 C of charge is required for 27 gram of aluminium
60.2 g aluminium will require
645.47 x 10³ C
So charge required = 645.47 x 10³ C
Now Charge = Current x time
Current ( given ) = 0.352A
Time = charge / current = 645.47 x 10³ / .352
=1833 x 10³ s
30.5 x 10³ minutes