If the car travels
300 km.........................5 hrs
?km ..............................2h
to find out we do (300*2)/5=600/5=120km
also
300km/5h=60km/h
in 2 hours
120km
Answer:
Explanation:
Volume of the rectangular block= V = l×b×h
=5cm×5cm×8cm= 200cm³
Density of block= d= 7.5 g/cm³
Mass of the block= m= d× V
= 1500 grams=1.5 kg
Answer:
To obtain the power, we first need to find the work made by the force.
1) To calculate the work, we need the next equation:

So the force is given by the problem so our mission is to find 'dx' in terms of 't'
2) we know that:

So we have:

Then:

3) Finally, we replace everything:

After some calculation, we have as a result that the work is:
161.9638 J.
4) To calculate the power we need the next equation:

So
P = 161.9638/4.7 = 34.46 W
Ehh, Earth rotates around its axis and Earth revolves around the sun as it travels through space.