A 15 A student walks 8.0 km south-east and then
12 km due west.
Draw a vector diagram showing the route. Use
your diagram to find the total displacement.
Remember to give the scale on your diagram
and to give the direction as well as the
magnitude of your answer.
b Calculate the resultant displacement. Show
your working clearly.

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

What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 hz? planck’s constant is 6.63 × 10–34

Question 11 of 13 (1 point) jump to question: a stairway, ladder, or ramp must be present in excavations in which of the following situations? a. all trenches must have access/egress b. the trench is more than 15 feet wide but only 1 ½ feet deep c. the trench is more than 4 feet deep and the devices must be within 25 feet of all workers