Based on the definition of specific heat and the information provide below, if the same amount of heat is added to 1 kg of all these substances, which substance will raise in temperature to the highest value?

Specific Heat Values (J/kg°C) of Different Materials:

Aluminum: 897

Helium: 5193

Steel: 490

Water: 4182

the first, second, and fifth options

b.

explanation:

10.0

no. dot product   =0 when vecs at right angles

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.