What is the resistivity of a wire of 1.3 mm diameter, 2.3 m length, and 61 ms resistance. number units the number of significant digits is set to 2; the tolerance is +/-2%

A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?

What is the coefficient of kinetic friction μk between the block and the tabletop?

Chameleons catch insects with their tongues, which they can rapidly extend to great lengths. in a typical strike, the chameleon's tongue accelerates at a remarkable 220 m/s2 for 20 ms, then travels at constant speed for another 30 ms.