B they formed from the dense elements as compared to the others in the solar system
Answer:
2.36m/s
Explanation:
first you have change 38km/hr into m/s
then divide your answer with 4.5
Answer:
Average speed equals distance / time
380 / 40 = 9.5 m/s.
Explanation:
In a block and tackle, some friction in the pulleys will reduce the mechanical advantage of the machine. To include friction in a calculation of the mechanical advantage of a block and tackle, divide the weight of the object being lifted by the weight necessary to lift it.
Hope this helps
E = hf
E : photon energy
h : Plank's constant 6.63×10^-34
f : frequency
Hope it helped!
