An object is placed 24.5 cm to the left of a thin converging lens that has focal length +12.1 cm. What would be the distance between the object and the image?

A 0.314-kg mass is attached to a spring with a force constant of 13.8N/m. If the mass is displaced 0.264mm from equilibrium and released, what would be its speed when it is 0.134mm from equilibrium?

When a 18.00-V battery is connected to the plates of a capacitor, it stores a charge of 21.0 μC. What would be the value of the capacitance and if the same capacitor is connected to a 21.00-V battery, what charge is will be stored?

An object is placed 61.5 cm from a screen. Where should a converging lens of focal length 8.5 cm be placed to form an image on the screen?

Given a 3.00 µF capacitor, a 4.25 µF capacitor, and a 15.00 V battery, what would be the charge on each capacitor if you connect them in the following ways?

A block of mass M is traveling on a horizontal frictionless surface at a velocity V, before colliding with a spring. The spring has a stiffness k. How much is the spring compressed?

A solid rod of length L and mass M has a pivot through its center and is originally horizontal. Another mass 2M is then attached firmly to one end of the rod, and released. What would be the maximum speed of the mass 2M attained thereafter?

Two solids A and B float in water. It is observed that A floats with half its volume immersed and B floats with 2/3 of its volume immersed. What will be the comparison of densities of A and B?

In terms of Rydergi constent R. What will be the wave number of first Balmer line?

Two charges are placed on the x axis. One of the charges (q1 = +8.21 μC) is at x1 = +2.52 cm and the other (q2 = -20.8 μC) is at x1 = +9.01 cm. What will be the net electric field at x = 0 cm?