You find that it is easier to increase your speed on your bike if you crouch
down and make your body as small as possible. how does this you?
o
a. it reduces the force of gravity.
o
b. it increases the force of air resistance.
o
c. it increases the force of gravity.
o
d. it reduces the force of air resistance.

its c its is a mixture of gases

the correct choice is a .

do not post any more test or exam questions on

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge