Answer:
V = 42.41cm^3
Explanation:
In order to calculate the volume of the solid, you use the following formula:

where
r: radius of the circular base of the cone = 3 cm
h: height from the circular base to the peak of the cone = 4.5 cm
You replace the values of r and h in the formula for the volume V:

hence, the volume of the solid is 42.41 cm^3
Answer:
Anything in an experiment that remains unchanged.
Explanation:
An example could be the temperature of the laboratory room. If there is something that has an effect on an experiment that is not variable, it is a constant. Another constant could be, say, if you were doing calculations with the same amount and kind of fluid throughout the experiment, then that fluid would also be a constant.
<span>C. Reduce the friction between its moving parts.</span>
Their combined speed will be 1m/s
Given the following parameters;
- The velocity of the first hockey player is 1m/s.
- The velocity of the second hockey player is 2m/s.
If the player collides and stick together, the combined speed is expressed as;
- Combined speed = differences in velocity
- Combined speed = 2m/s - 1m/s
- Combined speed = 1m/s.
Hence their combined speed will be 1m/s
Learn more on collision here: brainly.com/question/7538238
No, light does not have mass because a photon does not way anything.