Answer: 4 x 106
That’s how you write forty million in scientific notation.
90 km/h is 25 m/s
the relative velocity when cars are traveling in opposite directions is the sum of the two
25+20= 45 m/s
Answer:
55%
Explanation:
take efficiency=power output/power input multiply by 100%
convection
please mark brainliest any other problems or questions feel free to ask
