A student plays a guitar and notices that altering the tension in one of the strings alters the frequency of the note played. The student thinks that this happens because the speed of the wave has changed. 1 Plan an investigation which will determine if the speed of the wave in a wire is related to the tension (stretching force) in that wire.
Your plan should include: • an equipment list • a risk assessment • a method • a table for results.

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards

k2s for potassium sulphide

b. false

explanation:

suppose a rock in free fall is dropped off a cliff. after falling for 5 seconds, its speed would not be 100 m/s.