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  1. Practice problem

    A block shifts sideways →

    Intermediate · Find a missing quantity. Find the top’s sideways displacement.

  2. Practice problem

    A capacitor that does not start empty →

    Intermediate · Connect concepts. Find the capacitor voltage 0.30 s after switching.

  3. Practice problem

    A capacitor under alternating voltage →

    Intermediate · Apply a principle. Find its capacitive reactance magnitude.

  4. Practice problem

    A coin looks closer to the surface →

    Intermediate · Apply a principle. Find its apparent depth.

  5. Practice problem

    A collision leaves less energy for the spring →

    Advanced · Connect concepts. Find the maximum compression.

  6. Practice problem / FREE SAMPLE

    A compressed spring launches a cart →

    Intermediate · Connect concepts. All the initially stored spring energy becomes cart kinetic energy at natural length.

  7. Practice problem

    A conservative force closes its work ledger →

    Beginner · Apply a principle. What work does that same force do from C to A along any return route?

  8. Practice problem

    A couple changes the support share →

    Intermediate · Connect concepts. What is the upward reaction at the right support?

  9. Practice problem

    A couple turns without pushing →

    Intermediate · Apply a principle. Find the magnitude of the net torque.

  10. Practice problem

    A curved p–V path →

    Advanced · Apply a principle. Find the work done by the gas.

  11. Practice problem / FREE SAMPLE

    A density in two unit systems →

    Intermediate · Apply a principle. Cube the centimetre-to-metre factor because the denominator is a volume.

  12. Practice problem

    A diameter bound becomes an area bound →

    Intermediate · Compare cases. What is the approximate percentage bound on area?

  13. Practice problem / FREE SAMPLE

    A displacement with two components →

    Beginner · Apply a principle. The east and north components form perpendicular sides of a right triangle.

  14. Practice problem

    A draining jet also falls →

    Advanced · Connect concepts. Find the horizontal distance travelled before hitting the ground.

  15. Practice problem

    A fast cart needs less drive force →

    Intermediate · Find a missing quantity. Find the instantaneous driving force.

  16. Practice problem

    A faster runner closes the gap →

    Intermediate · Find a missing quantity. When does the faster runner catch up?

  17. Practice problem

    A field arrow has a direction as well as a size →

    Beginner · Connect concepts. What is the signed y component of the electric field at P?

  18. Practice problem

    A flat screen needs tangent geometry →

    Intermediate · Connect concepts. How far from the central maximum is the first-order maximum on the screen?

  19. Practice problem

    A flow controller pays a pressure cost →

    Advanced · Compare cases. What pressure drop is now required across the segment?

  20. Practice problem

    A force acts obliquely to displacement →

    Intermediate · Connect concepts. How much work does this force do?