12. You are building a go-cart. You want to know how you can make it go as fast as it can. Explain how you can use both chemistry and physics to help you build your go-cart (5 points). I

Physical measures:  Reduction of internal friction,  high static friction tire system

chemist. : air-fuel ratio as efficient

Explanation:

A go-Kart is a vehicle that can be with a motor or with pedals, which is in contact with the ground.

Physical measures that help increase vehicle speed are:

* Reduction of internal friction, use bearings, with greased joints to reduce friction

* Decreased friction when forward creating an aerodynamic raindrop shape, sharp at the front and with a rapid descent at the rear, but without abrupt cuts to the geometry

* Path difference for air passing through the top and bottom, to create a downward force help lower the car by increasing speed

* A high static friction tire system so you can move faster on surfaces and take turns faster

* A shifting system to have an effective torque either pedal or motor, gear shifting system

From the point of chemist.

* Obtain an air-fuel ratio as efficient as possible to increase the force per unit of fuel.

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2