Question

a 1.4 kg wall clock is hanging 2.7 meters above the ground. how much gravitational potential energy does the wall clock have? remember : $e_g = mgh$ $g = 10 \frac{m}{s^2}$ $e_g = ? j$

Explanation:

Step1: Identify the values

We have \( m = 1.4 \, \text{kg} \), \( g = 10 \, \frac{\text{m}}{\text{s}^2} \), and \( h = 2.7 \, \text{m} \). The formula for gravitational potential energy is \( E_g = mgh \).

Step2: Substitute the values into the formula

Substitute \( m = 1.4 \), \( g = 10 \), and \( h = 2.7 \) into \( E_g = mgh \). So we get \( E_g = 1.4 \times 10 \times 2.7 \).

Step3: Calculate the result

First, calculate \( 1.4 \times 10 = 14 \), then calculate \( 14 \times 2.7 = 37.8 \).

Answer:

\( 37.8 \)