Answer:
The cart will accelerate to the left
Explanation:
The cart is initially at rest. In order to understand its motion, we should consider the net force acting on the cart. We have two forces acting on it:
- A force of 7 N to the left
- A force of 5 N to the right
Therefore, the net force is

in the direction of the stronger force (so, to the left).
According to Newton's second law:

a net force different from zero produces an acceleration of the object, in the same direction as the net force. Therefore, the cart will accelerate to the left.
F=mg=Gm1m2/r^2
g=Gm2/r^2
g=2Gm2/(2r)^2=2Gm2/4r^2=Gm2/2r^2
So since there is half times the gravity on this unknown planet that has twice earth's mass and twice it's radius, then the person can jump twice as high. 1.5*2= 3m high
You can use a drill. I dont see why you would need much more.
Answer: 0 Degrees Celsius or 32 Degrees F
Explanation: Hydrogen sulfide is the gas that the speed of sound is 295m/s with the temperature bring 0 Degrees C
(Feel Free To Correct Me If I Am Wrong)