High specific heat means a material needed more energy to heat up. there are 2 objects started from the same temperature(25degree) and material a got to 73degrees c and material b got to 33 degrees c in the same amount of time. a had 48 degrees of temp. change and b had 8 degrees of temp change. which one has the highest specific heat?

The material B has the highest specific heat

Explanation:

Specific heat is defined as the amount of energy needed to increase by one degree the temperature of a unit mass of a certain substance.

Let's understand this problem better using numeric values and interpreting the results.

The amount of heat a body or substance receives is defined by the following expression:

If both bodies are receiving the same amount of heat Q = 15,000 [J], and both have the same mass, m=20[kg]

We will have:

In this way we can interpret that those materials with high specific heat value will require more energy to increase their temperature.

d

explanation:

i think the answer is d. but im not sure!

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me