A force of 300 N is used to stretch a horizontal spring with a 0.5 kg block attached to it by 0.25 m. The block is released from rest and undergoes simple harmonic motion.
Calculate
2.4.1 Spring constant (2)
2.4.2 Mechanical energy applied (2)
2.4.3 Velocity when x = 15 cm

Aray diagram for a refracted light day is shown. what does the dashed line represent

In which of the following cases is work being done on an object? question 2 options: pulling a trailer up a hill carrying a box down a corridor suspending a heavy weight with a strong chain pushing against a locked door

The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.