I think the answer is b. compaction
Answer:
speed is 25.43 85 x 10^5 m/s
Explanation:
momentum = 7.25 x 10^5 kg.m/s
mass = 0.285 kg
to find out
speed
solution
we have given mass and momentum so
to find speed we apply here momentum formula that is
momentum = mass × speed ...................1
put here all value and find speed
speed = momentum / mass
speed = 7.25 x 10^5 / 0.285
speed = 2543859.649
so speed is 25.43 85 x 10^5 m/s
<span>The simplest way to test the effects of mass is to compare the results of two trials that are identical except for the mass of the balls. In the language of experimental design, we say that the mass is the "variable of interest" for this experiment, and we therefore hold the other variables (size and height) constant so that they cannot affect the results.</span>
Answer:
W ’= 21.78 kg
Explanation:
The expression for weight is
W = m g
let's look for the acceleration of gravity with the universal law of gravitation
F = G m M / r2
F = m (G M / r2)
without comparing the two equations
g’= G M / r2
in that case M = 2 Mo and r = 3 ro
where mo and ro are the mass and radius of the earth
we substitute
g ’= G 2Mo / (3r₀) 2
G ’= 2/9 G Mo / r₀²
g ’= 2/9 g
the weight of the body on this planet is
W ’= m g’
W ’= m 2/9 g
let's calculate
W ’= 2/9 10 9.8
W ’= 21.78 kg
Revolution means orbiting around another body.
<span>A year is the time for a planet to complete one orbit around the Sun. 100% sure
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