JAMB Physics Past Questions & Answers - Page 61

The graph of density against temperature for water is correctly illustrated by

According to Newton's law of cooling, the heat energy lost per unit area of a body depends on the

I. Surface area

II. Nature of the surface

III. Temperature of the surface

IV. Excess temperature over the surroundings

A body is projected with an initial velocity u at angle $\theta$ to the horizontal. If $R_{max}$ is the maximum range of the projectile, what does the relation $\frac{u^{2}}{R_{max}}$ represent?

Which of the following quantities are dimensionally independent?

I. Dielectric constant    II. Momentum   III. Efficiency   IV. Refractive index

A block is acted upon by TWO horizontal forces as illustrated in the diagram above. The block accelerates at 1.5$ms^{-2}$. Calculate the mass of the block.