How many joules of heay are needed to raise the temperature of 10.0 g of aluminum from 22°c to 55°c, if the specific heat of aluminium is 0.90j/g°c

The heat energy required to raise the temperature is 297 joules.

The energy required is calculated by the formula

Q=mCΔT

here, m is the mass, C is the specific heat, ΔT is the temperature difference

Plugging the given values in the above equation

Q=10­­×0.90×(55-22)

=297 joules

The heat energy required to raise the temperature is 297 joules.

if the forces acting on an object are unbalanced, the object will accelerate in the direction of the net force on the object.

explanation:

this is best explained by having an understanding of newton's second law, which states that f=ma. you see, when the forces are unbalanced, net force (sum of all forces) is not zero. therefore making it necessary for the object to have an acceleration in the direction of the net force.