Answer:
The speed and direction of the apple is 1.448 m/s and 66.65°.
Explanation:
Given that,
Mass of apple = 0.110 kg
Speed = 1.13 m/s
Mass of orange = 0.150 kg
Speed = 1.25 m/s
Suppose we find the final speed and direction of the apple in this case
Using conservation of momentum:
Before:
In x direction,
In y direction = 0
After:
is velocity of the apple in the y direction
is the velocity of the apple in the x direction
Momentum again:
In x direction,
In y-direction,
We need to calculate the speed of apple
Put the value into the formula
We need to calculate the direction of the apple
Using formula of angle
Put the value into the formula
Hence, The speed and direction of the apple is 1.448 m/s and 66.65°.
Answer:
The trouble that the most recent experiment, Borexino, have to overcome was that
neutrinos hardly interact with matter and so radioactive decay of ant material inside the detector could look exactly like a neutrino interaction too
Answer:
the answers, the correct one is A v= 22.5 m/s
Explanation:
We can solve this problem using the concepts of conservation of mechanical energy
Starting point. Lowest point of the trajectory
Em₀ = K = ½ m v₀²
Final point. When it is at a height of y = 20 m
= K + U = ½ m v² + mg y
how energy is conserved
Emo = Emf
½ m v₀² = ½ m v² + m g y
v² = v₀² + 2 g y
let's calculate
v²2 = 30 2 + 2 9.8 20
v² = 508
v²= ra 508
v² = 22.54 m / s
When checking the answers, the correct one is A
then the current will decrease.
hope this helps :)