Answer:
KE (5) = 1/2 M V^2 = 25/2 M
KE (10) = 1/2 M V^2 = 100/2 M
KE (10) - KE (5) = M/2 (100 - 25) = 75/2 / M
An object traveling at 10 m/s has 4 times the kinetic energy as an object traveling at 5 m/s
Total work would depend on the mass being accelerated
It would be metric
this is the most popular, or most famous technique of measuring(In USA)
hope that this helps you! =)
The energy if of a photon is (Planck's Konstant) x (frequency).
Planck's Konstant is 6.62607004 × 10⁻³⁴ m²-kg/s .
So the photon's energy is
(6.626 × 10⁻³⁴ m²-kg/s) x (4.89 x 10¹⁴ / sec)
= (32.4 x 10⁻²⁰) m²-kg/s²
= 3.24 x 10⁻¹⁹ joule
Mass of 25 kg weight is 25/9.81 slug of mass.
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