Answer: A gas is a substance with no definite volume and no definite shape. Solids and liquids have volumes that do not change easily.
Explanation:
Correct question is;
Talia is on a road trip with some friends. in the first 2 hours, they travel 100 miles. then they hit traffic and go only 30 miles in the next hour. the last hour of their trip, they drive 75 miles. calculate the average speed of talia’s car during the trip. give your answer to the nearest whole number.
Answer:
Average speed ≈ 51 mi/hr
Explanation:
Total distance travelled by Talia = 100 + 30 + 75 = 205 miles
Total time taken by Talia = 2 + 1 + 1 = 4 hours.
Now, formula for average speed is;
Average speed = Total distance/total time
Thus;
Average speed of talia = 205/4
Average speed of talia ≈ 51 mi/hr
Chemical energy is the type of energy obtained from food. If you want more info look up information about the mitochondria and ATP. I hope this helps!
Velocity=frequency/wavelength
frequency=velocity*<span>wavelength
</span>f=341*0.8
f=272.8 Hz
Answer:
The baseball will be 42 meters horizontally from where it was thrown and at the heigth of the ground.
Explanation:
this is a problem that involves basic mechanics in two directions, for the x axis we have a constant speed problem and for the y axis we have a constant aceleration problem, using the equations for each one of these we got:
where Xo and Yo are the inital position for x and y axis, in this case 
and 
, Vox and Voy are the initial speed for x and y axis, in this case 
and 
since the ball was throwns horizontally, and a is the acceleration in the y axis which is the gravitational aceleration, that means 
(the minus sign is because the gravitational aceleration is towards the negative y axis).
Replacing these values we have to equations that will help us find the position of the ball at any time we want:
and here we just have to replace the time value and solve, so:
and that's it, the ball is 42 meters horizontally from where it was throwns and at the heigth of the ground.
