B: 1.6 N
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A beam pivoted at one end has a force of 5.0 N acting vertically upwards on it as shown. The beam is in equilibrium. …
Four objects of equal mass rest on a table. The centre of mass of each object is labelled G. Which object is the leas…
A 100 g mass is suspended from a spring next to a vertical metre rule. The top of the spring is level with the 0.0 cm…
A flash of lightning and the corresponding sound of the thunder are detected 6s apart. A student calculates that the …
Which properties make materials suitable for use as a core in an electromagnet?
Two metal spheres P and Q are mounted on insulating stands and are touching each other. They are uncharged. A positiv…