Answer:
20 degrees
Explanation:
Because projectile has the same range on both angles which on summation gives 90 degrees as a total.
Answer:
204 kJ
Explanation:
Heat energy can be calculated using
Q=mcθ
where Q = Heat energy
m =mass
c = specific heat capacity
θ =temperature difference
Q = 12 * 1700*10
= 204000 J
= 204 kJ
A chemical reaction is <span>a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction.
Hope this helps :)</span>
Answer:
The time that the drop is falling =35.875 s
Explanation:
Using one of newton's equation of motion
g = V-u/t ................ Equation 1
Where V = final velocity, u = initial velocity, g = acceleration due to gravity of the moon, t = time.
<em>Note:</em> for a dropping object, u = 0 m/s
g = V/t.................... Equation 2
making t the subject of equation 2 above
t = V/g................. Equation 3
<em>Given: V= 57.4 m/s, g = 1.6 m/s²</em>
Substituting these values into equation 3
t = 57.4/1.6
t = 35.875 s
t = 35.875 s
The time that the drop is falling = 35.875 s