Alaser pointer is placed on a platform that rotates at a rate of 60 revolutions per minute. the beam hits a wall 10 m away, producing a dot of light that moves horizontally along the wall. let θθ be the angle between the beam and the line through the searchlight perpendicular to the wall.

Explanation:

As we know that the angle made with the vertical is given so we have

so we have

now differentiate both sides with time

now we know that

now we have

i believe the answer is a

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.