Answer:
1 or 2 or 3
Explanation:
it depends whether the coat is a light or dark colour. if it is lighly coloured it will not absorb heat from the sun and wont melt the snowman. if it is darkly coloured it will be number 1
the coat wont make a difference if the temperature of the snowman is the same and the temperature outside the snoman and the sun isnt shining. the coat would just make him look smart - so number 2
it coul keep in the cold and block out the warmth so number 3
H = 2.80t^3
h = 2.80 (1.55)^3 = 10.43
10.43 = 1/2 gt^2
10.43 x 2/9.8 = t^2
t = √2.12
= 1.45
Hope this helps
Potential energy to kinetic energy
<h2>
The momentum is greater for 0.1 kg bullet traveling at 300 m/s</h2>
Explanation:
Momentum = Mass x Velocity.
A 2500 kg truck moving at 0.01 m/s
Momentum = Mass x Velocity
Momentum = 2500 x 0.01 = 25 kgm/s
A 0.1 kg bullet traveling at 300 m/s
Momentum = Mass x Velocity
Momentum = 0.1 x 300 = 30kgm/s
Momentum of 0.1 kg bullet traveling at 300 m/s > Momentum of 2500 kg truck moving at 0.01 m/s.
The momentum is greater for 0.1 kg bullet traveling at 300 m/s