Answer:
<em>4.61 N</em>
<em></em>
Explanation:
masa = 0.5 kg
ángulo de inclinación = 20°
Peso normal de la masa = mg
donde m = masa
g = aceleración debido a la gravedad = 9.81 m/s^2
Peso normal = 0.5 x 9.81 = 4.905 N
Si la masa se mantiene en su lugar mediante una cuerda paralela al plano, y no hay fricción en la masa, entonces
La fuerza sobre la cuerda = peso normal x cos ∅
donde ∅ = 20 °
La fuerza sobre la cuerda = 4.905 x cos 20°
==><em> 4.61 N</em>
I am gonna guess
1) 8m
2) total time
3) instantaneous acceleration
4) the train’s acceleration is negative
5) equal zero
6) acceleration due to gravity
Answer:
Speed is a "scalar" quantity
(C) is the correct answer
An object could travel at 10 m/s to some point and then return to the origin at 10 m/s for an average speed of 10 m/s, however it's displacement over that time would be zero for a net velocity of zero.
Answer:
Nuclear fission of U235 to Kr92 and Ba 141.
Explanation:
Nuclear fission is the spantenous disintegration or breaking down of a big atom into smaller nucleus with the release of huge amount of energy. It involves the artificial transmutation of a heavier nucleus by bombardment with other rasuiactive particles.