PLEASE HELP THIS IS USA TEST PREP : Toy remote control cars require batteries as a power source. Identify the energy transformation that powers an electric generator in a toy remote control car.
A) It transforms electrical energy into kinetic energy.
B) It transforms kinetic energy into electrical energy and then into chemical potential energy.
C) It transforms chemical potential energy into kinetic energy and then into electrical energy.
D) It transforms chemical potential energy into electrical energy and then into kinetic energy.

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.

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.

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

at right angles to each other