Answer:
a) -23583J
b) 471.66N
Explanation:
Using the conservation energy theorem:
The height is given by:
substituting the values we have:
*
the work is defined by:
the force of the friction force is 180 degrees because it's opposite to the movement, so:
Answer:
Liquid
Explanation: It can't be gas because gases are all around us and we can still see light. For solids it can't even move through a solid. Ex: If you're in a solid dome made of rock you can't get any light through. Let me know if I'm right!
Answer:
false
Explanation:
inertia deals with movement!
Answer:
d) Decrease, increase, remain constant
Explanation:
If one tire has a slow leak, the air pressure within the tire will_DECREASE____with time due to outflow of air , the surface area between the tire and the road will__INCREASE__in time,due to flattening of tire.
The net force the tire exerts on the road will_REMAIN CONSTANT____in time. It is so because force does not depend upon area. It is pressure which depends upon area. As there is no change in the weight of the car , force on the road will remain constant.
