The velocity, 50 m/s, has two components - vertical and horizontal velocities.
The vertical component = 50 sin 30 = 25 m/s
The horizontal component = 50 cos 30 = 43.3 m/s
(a) Let t be the time taken for the vertical component to reach its peak from initial velocity = 25 m/s to its final velocity = 0.
Using the linear motion equation v = u - gt
0 = 25 - 10t
t = 2.5 s
Time taken to go up and down = 5 s
Time to hit the ground = 5 s
(b) Horizontal distance dealt x = 43.3 * 5 = 216.5 m
This is not the correct answer, but explains the problem thoroughly.
Answer:
E D G E N U I T Y
The first answer is 0.0098 kg
The second answer is 0.192 kg
Explanation:
Answer:
degree
Explanation:
given data:
accoding to the snell's law
where n1 is refracting index of air = 1
n2 is refracting index of glass = 1.55
putting all value to get angle mad by incident ray with normal
degree
Question:
How do rechargeable batteries work?
Answer:
When a rechargeable battery is connected to electricity it changes the pressure inside and allows the rubber membrane to expand, thus releasing more energy next time its used. When plugged into the wall the electrons are sent back to rebuild the original dry cell (or metal). Rechargeable batteries are made exclusively of nitrogen which when exposed to electricity from and outlet can store a charge. When a battery is zapped by the electricity from the outlet it resets the system.
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