Answer:
v = 69.82 ms^-1
Explanation:
As we know,
R = vi2 sin2Ꝋ / g
vi2 =R g / sin2 Ꝋ where R is range R = 52m, Ꝋ = 3 Degrees
vi2 = 52 x 9.8 / sin 2(3) = 4875.227
v = 69.82 ms^-1
Answer:opposite
Explanation:for a capacitor to discharge (after charging) the polarities of the current and voltage have to be reversed
Answer:
I beileve its A because energy is what gives the ability to do work
Explanation:
Answer:
3.94784176044N/m
Explanation:
The period of a spring is found using the formula T=2π, where m is the mass and k is the spring constant.
The period can also be found using the formula T=, where f is the frequency.
T=T
∴2π=
2π=1/0.1
=10/2π
10/k=1.59154943092²
10/2.53302959106=k
k=3.94784176044N/m
.