Answer:
b. The final temperature of the coffee cup will be higher than 25°C but less than 75°C.
Explanation:
We know in thermal equilibrium.
Heat loss by one object = Heat gain by other object.
Now, heat is loss by the object whose temperature is higher than other because heat travels from high temperature to other.
And the object who gain heat its temperature increases till both body reach same temperature.
In this case, water loss heat, therefore its temperature decreases.
Similarly , metal block is at low temperature so its temperature increases.
Therefore , both water and metal block must have temperature less than and to have thermal equilibrium.
Explanation:
what that even is a subject
Answer:
Displacement
Explanation:
The distance between an object and a certain reference point is called displacement. This is not to be confused with distance, which represents the total distance the object has travelled to get a certain point, regardless of how long it is. Displacement always represents the shortest distance (a straight line) between the initial and final points.
Answer:
Maximum height, H = 35 meters
Explanation:
Given the following data;
Time = 7 seconds
Acceleration due to gravity, g = 10 m/s²
To find the maximum height;
Mathematically, the maximum height is given by the formula;
H = ½gt²
H = ½ * 10 * 7
H = 5 * 7
Maximum height, H = 35 meters