Answer:
0
Explanation:
Given:
initial velocity, 
distance of telescope from the launch pad, 
time after which the observation starts, t = 3 min.
Now, from the equation of motion:
Which indicates that the after the given time the rocket would have fallen down on the ground if it did not had an acceleration of its own.
U = 0, the initial vertical velocity
Assume g = 9.8 m/s² and ignore air resistance.
Use the formula
v = u + gt
where v = vertical velocity after t seconds.
That is,
v = 0 + (9.8 m/s²)*(10 s) = 98.0 m/s
Answer: 98.0 m/s
Answer:
The amount of energy wasted by light bulb 2 = 70 J
Explanation:
Sankey diagrams are used to graphically indicate the proportional flow rate of a quantity
The labelled Sankey diagrams, here, indicate the energy transfers in two light bulbs, light bulb 1 and light bulb 2
From the labelled Sankey diagrams, we have;
For light bulb 1, the input energy = 80 J
The useful energy = 40 J
The wasted energy = 80 - 40 = 40 J
For light bulb 2, the input energy = 80 J
The useful energy = 10 J
Therefore, the wasted energy = 80 - 10 = 70 J
The amount of energy wasted by light bulb 2 = 70 J.
Answer: B chemical
Explanation: it will make a chemical reaction
