A student wants to know if the effect of gravity is the same on all objects. She follows these steps: 1 :Drop a 5-gram ball, a 10-gram ball and a 12 gram ball from a height of 10 meters.
2 :Record how long it takes for each object to hit the ground
3:?

Which step should be next?

Choose new balls

Measure the mass of the balls again

Drop the balls from a different height

Perform a second trial

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph

the answer is yes

it has kinetic energy

reason

an object has kinetic energy when you stop the force carrying it, the object will stay in motion.

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