A dumbell has a mass of 95 kg. What force must be applied to accelerate it upward at 2.2 m/s2?

Stion 13 of 20 : select the best answer for the question. 13. if a certain mass of mercury has a volume of 0.002 m3 at a temperature of 20°c, what will be the volume at 50°c? a. 0.002021624 m3 b. 0.004021624 m3 c. 0.000010812 m3 d. 0.002010812 m3

An object has a weight of 500 on earth what is the mass of this object

Ineed the answer to question 1 , i’m desperate