1. <span>A ball sitting at the top of a hill
</span>2. <span>A girl running in a race
</span>3. <span>Potential energy
</span>4. <span>Heat is due to the motion of molecules
</span>5. <span>Hot
</span>6. <span>Temperature
</span>7. H<span>eat moves through conduction, convection, and radiation
</span>8. <span>Fluids (liquids or gases)
</span>9. <span>An insulator slows heat transfer</span>
Answer:
Magnitude of y-component=7 units
Direction= angle of vector A with x-axis=
Explanation:
Explained solution is in the picture attached
Answer:
(a) Force and Pressure
Explanation:
Acc to the formula,
Force = Pressure/Area
Therefore it depends on force and pressure
Answer:
- 1 m/s ( here (-) means the opposite direction of A)
Explanation:
Let m1=2kg, m2=2kg,u1= 3m/s,u2= -2 m/s, v1= 1m/s
m1u1+m2u2= m1v1+m2v2
2×3+2×(-2) = 2×1 + 2x
2= 2(1+x)
x = -1
Hope it helps
I think it is Letter D, because she already said what to make