Answer:
The number of calories needed is 6c.
Step-by-step explanation:
The amount of energy
needed to raise the temperature
of water of mass
is
![Q = mC\Delta T](https://img.qammunity.org/2021/formulas/physics/middle-school/ogvsln870gml6tsli4odc81i6l5h5pogra.png)
where
is the specific heat capacity of water.
Putting in numbers into equation (1), we get:
![Q = (2g)(1)(3^oC )\\](https://img.qammunity.org/2021/formulas/physics/middle-school/q44dc9pusn158eli66xsft7p3sbmb8gfu4.png)
![\boxed{Q = 6\:cal }](https://img.qammunity.org/2021/formulas/physics/middle-school/htbagsuao5e1l3u8zb2rh9uv5w8t5a2pur.png)
which is the number of calories needed.