Answer:
B. 81
Explanation:
When you multiply two numbers, round the answer to the least number of significant figures available. 67.6 has three significant figures, and 1.2 has two significant figures. So we round to two significant figures.
<span>The answer to this question is that non metals are
volatile. Volatile means evaporating easily. Non metals have the
characteristics and properties of being brittle and poor conductors of heat and
electricity. Non metals are also good oxidizing agents and physically they may
be in liquid, solid or gas state. Examples of non metals are carbon, sulfur,
argon, neon, and hydrogen.</span>
Answer:
7. Net constant force down the ramp
Explanation:
After the car is released and starts moving up the ramp, the only force that is applied on the car is weight because of the gravity, we were told that the friction force is neglected. the force because of the weight is given by:

where θ is the angle of the ramp.
as you can see those values won't change, so the force remains constant down the ramp.
Answer:
Distance covered by Anthony is 3 km. Don't know about displacement though.