Answer:
B
Explanation:
B. Women have straighter teeth.
False noth all steroids are legal
<span>they took advantage of innovations in sailing technolgy that allowed ships such as the caravel to sail against the wind.</span>
<span>The wavelength of a proton traveling at a speed of 6.21 km/s is
wavelength = (6.63E-34 Js) / (1.67Eâ’27kg x 6.21E3m/s)
= 6.393E-9 m
Region of the spectrum for electromagnetic radiation of this wavelength will be Xrays.</span>
Answer:
3 kg
Explanation:
Momentum before = momentum after
m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂
After jumping on the skateboard, the student and the skateboard have the same velocity, so v₁ = v₂.
m₁u₁ + m₂u₂ = (m₁ + m₂) v
(47.4 kg) (4.2 m/s) + m (0 m/s) = (47.4 kg + m) (3.95 m/s)
m = 3 kg
