How much is one degree Celsius in temperature change ?
1 answer:
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Answer:
the probability that at least 125 of the 500 components will have failure times larger than 20 is 0.7939
Explanation:
see the attached file
Answer:
Acceleration of the box is 4.9 m/s².
Explanation:
The free body diagram is shown below.
The weight of the body can be resolved into two mutually perpendicular components as shown. The force responsible for sliding motion of the box along the incline is due to acting along the incline.
Therefore, as per Newton's second law of motion,
Net force =
Now, net force acting along the incline is only
Therefore,
Now,
Therefore, the acceleration of the box is given as:
Acceleration of the box is 4.9 m/s².
Answer:
90 N
Explanation:
The force applied to the ball is given by:
where
is the change in momentum of the ball
is the time taken
The change on momentum of the ball is:
So, the force applied is
Answer:
1. T₁ = 500 N
2. T₂ = 866 N
Explanation:
Please see attached photo for the diagram.
Thus, we can obtain obtained the value of T₁ and T₂ as follow:
1. Determination of T₁
Angle θ = 30
Hypothenus = 100 kg
Opposite = T₁ =?
Sine θ = Opposite /Hypothenus
Sine 30 = T₁ / 100
Cross multiply
T₁ = 100 × Sine 30
T₁ = 100 × 0.5
T₁ = 50 Kg
Multiply by 10 to express in Newton
T₁ = 50 × 10
T₁ = 500 N
2. Determination of T₂
Angle θ = 60
Hypothenus = 100 kg
Opposite = T₂ = ?
Sine θ = Opposite /Hypothenus
Sine 60 = T₂ / 100
Cross multiply
T₂ = 100 × Sine 60
T₂ = 100 × 0.8660
T₂ = 86.6 Kg
Multiply by 10 to express in Newton
T₂ = 86.6 × 10
T₂ = 866 N
