Their momentum is the same.
momentum of dolphin=50kg*16.4m/s=820kg*m/s
momentum of elephant=4100kg*0.20m/s=820kg*m/s
I can answer number 2 for you only. I don’t know if it’s correct or not this is what I THINK it is:
2. Burning fossil fuels creates greenhouse gases, which changes the climate.
Ps. Climate is long term weather. Aka weather over a long period of time.
Density=mass/volume. if you know any 2 of these variables, you can figure out the missing one
You must first convert minutes to seconds so 10*60=600
Then multiply the number of seconds by the speed so 600*2=1200 m
<span> Magnetic fields have north and south magnetic poles.</span>