Convert 1.4×10^9km^3 into cubic meters
2 answers:
Explanation: Hi! here we have 1.4×10^9km^3 and want to write this quantity in meters.
First, a kilometer is one thousand meters, so 1km = 1000m, so =
. = 10^9 m^3
so changin this in our quantity we get 1.4×10^9km^3 = 1.4×10^9*10^9 m^3=1.4×10^18m^3
and there you hace the original quantity written in meters.
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Answer:
So a=3.844 and b=5
Explanation:
Scientific notation requests to write a number using powers of ten as a factor accompanying a real number (a) between 1 and smaller than 10 that contains the digits to exactly represent the original number. So in this case, the number 384,400 can be written as:
with a=3.844, and "5" as the exponent of ten (so b=5)
The car travels at a speed of 25m/s.
<u>Explanation:</u>
Given-
Mass, m = 1500kg
Coefficient of friction, μk = 0.47
Distance, x = 68m
Speed, s = ?
We know,
and
F = μ X m X g
Therefore,
μ * m * g = m * a
μ * g = a
Let, g = 9.8m/s²
So,
We know,
where, v is the final velocity
u is the initial velocity
a is the acceleration
s is the distance
If the car comes to rest, the final velocity, v becomes 0.
So,
The car travels at a speed of 25m/s.