Find the force of gravity between a newborn baby (mass = 2.9 kg) and the planet Mars (mass = 6.4 x 10^23kg), when Mars is at its closest to Earth (distance = 5.6 x 10^10m).

Question

anonymous · Answer

ok this is simple

anonymous · Answer

$$F = u \frac{mM}{r^2}$$

anonymous · Answer

small m represent the mass of the baby, M is the mass of Mars

anonymous · Answer

$$F = u \frac{2.9kg \times 6.4 \times 10^{23} kg}{(5.6 \times 10^{10}m^2)}$$

anonymous · Answer

$$F=6.67300 × 10^{-11} m^3 kg^{-1} s^{-2} \frac{2.9kg \times 6.4 \times 10^{23} kg}{(5.6 \times 10^{10}m^2)}$$

anonymous · Answer

m/s^2 is = N

anonymous · Answer

SO how would I write it as an answer.

anonymous · Answer

all u have to do is use the calculator

anonymous · Answer

$$F=6.67300 × 10^{-11} \frac{2.9 \times 6.4 \times 10^{23} }{(5.6 \times 10^{10})}$$

anonymous · Answer

is that clearer for u now?

anonymous · Answer

do u know how to use a calculator?

anonymous · Answer

To be honest with you, I don't know how to use the Texas Instrument calculator. I'm 41 and we didn't have these in my time and if we did we couldn't afford one. My kids are the lucky ones who got to use it. But they are no help.

anonymous · Answer

its ok

anonymous · Answer

I answered it. 3.9 x 10^-8 N