Question 1: C Question 2: B, Hope this Helps!
Answer:
diverging light rays of the bulb are collected by the reflector.
Explanation:
Chlorine gas or just chlorine?
Answer:
In coin card experiment smooth card is used so that the card can slide easily from glass
Refer to the diagram shown below
Given:
m = 2.8 kg, the mass of the bucket
a =3.1 m/s², the acceleration of the bucket
Therefore
W = 2.8*9.8 = 27.44 N, the weight of the bucket.
Let T = the tension in the rope.
From the free body diagram, the net force accelerating the bucket is
T - W = m*a
That is,
T = W + m*a
= 27.44 + 2.8*3.1 N
= 36.12 N
Answer: d. 36.1 N