Calculate the spring constant given F = 20 N and x = 0.1 m. 6. Define specific heat capacity in SI units.

Question

ScanSolve AI Tutor · Accepted Answer

Here are the solutions for questions 5 and 6.

Recall Hooke's Law, which states that the force applied to a spring is directly proportional to its extension.
$$ F = kx $$ where $k$ is the spring constant.
Rearrange the formula to solve for the spring constant, $k$ .
$$ k = \frac{F}{x} $$
Substitute the given values into the formula.
$$ k = \frac{20 \text{ N}}{0.1 \text{ m}} $$
Calculate the spring constant.
$$ k = 200 \text{ N/m} $$ The correct option is **B**. The final answer is $\boxed{200 \text{ N/m}}$.
6. The specific heat capacity of a substance is defined as the quantity of heat required to raise the temperature of a unit mass of the substance by $1^\circ\text{C}$ (or $1 \text{ K}$ ). In the SI system, the unit mass is $1 \text{ kg}$ . The correct option is B. The final answer is $\boxed{\text{1 kg of the substance by } 1^\circ\text{C}}$ .

Answer