This is true. they have numbers on the side that help to determine the volume.
Answer:
The negative work is done in the opposite direction of the movement.
Explanation:
When the force applied to the body acts contrary to the movement of the body, it is considered that a negative mechanical work is performed.
In the attached image, we can see how these forces acting over one body.
In the sketch we can see how the force is moving the block to the right, it means in the direction of the movement and the friction force is acting in the opposite direction of the movement, that is the reason that the work is negative.
Answer:
the outcome is that both of them will have same effect
<h3><u>Answer</u>;</h3>
A) 84 calories
<h3><u>Explanation</u>;</h3>
- Specific Heat Capacity is the energy, transferred as heat, that is required to raise the temperature of one gram of a substance by one degree Celsius.
- Quantity of heat = mcΔt; Where m is the mass in kilograms, c is the specific heat capacity and Δt is the change in temperature.
<em>Mass = 10 g, specific heat capacity = 0.21 cal g°C, and Δt = 10 °C</em>
<em>Therefore;</em>
<em>Heat = 10 × 0.21 cal g°C × 40 °C</em>
<em> = </em><u><em>84 calories</em></u><em> </em>