Answer:
The solution is shown in the picture attached below
Explanation:
Answer:

Explanation:
As we projected the balloon at speed vo at an angle of 29 degree
so the two component of velocity is given as


now we know that in x direction we have



in y direction we have



now we have

Answer:
it is the bottom one
Explanation:
the wavelength is shorter but more compressed.
Answer: Kinetic energy increases and potential energy decreases when the velocity of an object increases
Explanation: probably that one