Question Answers

Figure 4.158 shows a graph of the acceleration of a model railroad locomotive moving on the x – axis. Graph its velocity and coordinate as functions of time if x = 0 and vx = 0 at t = 0 Figure 4.158 shows a graph of the acceleration of a model railroad locomotive moving on [...]

The velocity – time graph of a particle moving in a straight line is shown in the Fig. 4.157. Find the displacement and the distance traveled by the particle in 6 s. The velocity - time graph of a particle moving in a straight line is shown in the Fig. 4.157. Find the displacement and [...]

Starting at x = 0, a particle moves according to the graph of v vs t shown in Fig. 4.156. Sketch a graph of the instantaneous acceleration a vs t, indicating numerical values at significant points of the graph. a particle moves according to the graph of v vs t shown in Fig. 4.156. Sketch [...]

Which graph represents the variation of surface tension with temperature over small temperature ranges for water? Which graph represents the variation of surface tension with temperature over small temperature ranges for water? September 18, 2020 Category: Arihant Physics by D.C Pandey , Chapter 13 - Fluid Mechanics , Volume 1 ,

A train of length l = 350 m starts moving rectilinearly with constant acceleration a = 3.0 * 10 ^-2 m/s^-2. After t = 30 s from start, the locomotive headlight is switched on (event 1 ), and 60 s after A train of length l = 350 m starts moving rectilinearly with constant acceleration [...]

Two soap bubbles of radii r1and r2 equal to 4 cm and 5 cm are touching each other over a common surface S1S2 (shown in figure). Its radius will be: Two soap bubbles of radii r1and r2 equal to 4 cm and 5 cm are touching each other over a common surface S1S2 (shown in [...]

Two motor cars start from A simultaneously and reach B after 2 h. The first car travelled half the distance at a speed of 30 km/hr and other half at a speed of 60 km/h. The second car started Two motor cars start from A simultaneously and reach B after 2 h. The first car [...]

The surface tension of a soap solution is 25×10^−3 N/m. The excess pressure inside a soap bubble of diameter 1cm is: The surface tension of a soap solution is 25×10^−3 N/m. The excess pressure inside a soap bubble of diameter 1cm is: September 18, 2020 Category: Arihant Physics by D.C Pandey , Chapter 13 - [...]

If two soaps bubbles of equal radii r coalesce then the radius of curvature of interface between two bubble will be: If two soaps bubbles of equal radii r coalesce then the radius of curvature of interface between two bubble will be: September 18, 2020 Category: Arihant Physics by D.C Pandey , Chapter 13 - [...]

The surface tension of a soap solution is 2×10^−2N/m. To blow a bubble of radius 1cm, the work done is The surface tension of a soap solution is 2×10^−2N/m. To blow a bubble of radius 1cm the work done is? September 18, 2020 Category: Arihant Physics by D.C Pandey , Chapter 13 - Fluid Mechanics [...]