What is KBr (periodic table) def
1 answer:
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Answer:
F = -49.1 10³ N
Explanation:
Let's use the kinematics to find the acceleration the acceleration of the bullet that they tell us is constant
² = v₀² + 2 a x
Since the bullet is at rest, the final speed is zero
x = 11.00 cm (1 m / 100 cm) = 0.110 m
0 = v₀² + 2 a x
a = -v₀² / 2 x
a = -1320²/(2 0.110)
a = -7.92 10⁶ m / s²
With Newton's second law we find the force
F = m a
F = 6.20 10⁻³ (-7.92 10⁶)
F = -49.1 10³ N
The sign means that it is the force that the tree exerts to stop the bullet
The answer is: " 44 
km " ;
or; write as: " 44.333 km " .
___________________________________________________________
Explanation:
___________________________________________________________
(70 km + 63 km) ÷ (2 + 1 ) = 133 km ÷ 3 = " 44 km " ;
or; write as: " 44.333 km " .
___________________________________________________________
or; write as: " 44.333 km " .
___________________________________________________________
Explanation:
___________________________________________________________
(70 km + 63 km) ÷ (2 + 1 ) = 133 km ÷ 3 = " 44
or; write as: " 44.333 km " .
___________________________________________________________
Answer:
The value of the power is
Explanation:
From the question we are told that
The power rating
The frequency is
The frequency at which the sound intensity decreases
The decrease in intensity is by
Generally the initial intensity of the speaker is mathematically represented as
Generally the intensity of the speaker after it has been decreased is
So
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taking atilog of both sides
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