Most likely climbing up the mountain
Answer:
1. 18.25 m/s
2. 0 m/s
Explanation:
1.So the centripetal acceleration of the ball at this lowest point must be, taking gravity into account
The speed at this point would then be
2. Similarly, if T = mg, then the centripetal acceleration must be
As the ball has no centripetal acceleration, its speed must also be 0 as well.
Answer:
3.83×10⁻¹⁹ J
Explanation:
The energy of a photon can be found using the formula: E=hc/λ
- h is Planck's Constant which is approximately 6.63×10⁻³⁴
- c is the speed of light which we'll round to 3.00×10⁸
- λ is the wavelength of the photon. You typed 5200 but that's not even within the visible light spectrum's wavelength range, so I'm going to assume you meant 520 nm; or 5.20×10⁻⁷ m.
Plugging all that info in should give approximately 3.83×10⁻¹⁹ Joules of energy.
(You could get slight variations depending on what you chose to round up or down or not at all.)
Answer:
Canopus is more than 300 light years away from earth. This means it takes the light we see more than 300 years to reach us.
