It should be 60 mph. Because if you divide 600 by 10 it’s 60
ok
1. blue red pink black
2. you can say bored look
3. why do you want to talk in brainly?
It would be B since it starts with the solar energy which is converted to electricity with the solar panels, which then creates mechanical energy for the fans blades to move and sound for the radio.
Hope that helps :)
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Sound wave needs medium to travel
as energy which travels in this wave is because of transfer from one particle to another particle
If there is no medium then energy can not be transferred and sound wave will not travel
so in vacuum we can not listen sound
similarly here air is removed it means there is no medium inside the jar to travel the sound and hence we can not hear it
Option B is correct
Without air, the sound waves cannot travel to the ear.
It makes no difference. The momentum of either car goes to zero in both cases.
