Tap water isn't pure. it just isn't H₂O.
Answer:
Doppler Effect works on both light and sound objects.
Explanation:
Like when a sound object moves towards you, the frequency of the sound waves increases, leading to a higher pitch.
if it moves away from you, the frequency of the sound waves decreases and the pitch comes down.
Answer:
the force exerted by the triceps muscle is 1190.4 N or 1.2 kN
Explanation:
given data
F = 96 N
D = 2.50 cm
L = 31 cm
solution
we will apply here equilibrium condition that is
∑r = about the elbow joint ............................1
so force exert by the muscle is
F(tri) × D = F × L .................2
put here value
F(tri) × 2.50 = 96 × 31
solve it we get
F(tri) = 1190.4 N
so the force exerted by the triceps muscle is 1190.4 N or 1.2 kN
<em>The net force required to give a 25kg crate an acceleration of 2.2m/s^2 to the right is;</em>
25 x 2.2
= 55 N
Explanation:
option D
you compare the data from your experimental results to the prediction being tested