Answer:
who done work in less time will have more power
Explanation:
Volume of tea V = 2.0L = 2000 mL density d = 1.01 g/ mL mass of tea m = V * d = 2000mL * 1.01g/mL = 2020 gWhen we assume that the tea was initially at 72, the final temperature of the tea in F is 91.
The answer in this question is B. 91
Answer:
Weight is a force.
Explanation:
Force acting on an object is defined in terms of mass and its acceleration. Its mathematical force is given by
F = ma
Weight of an object is force that the Earth exerts on an object. It can be given by the formula as follows :
W = mg
g is acceleration due to gravity on the surface of earth
Hence, the correct option is (d).
Answer:
Motion maps are used to illustrate the direction and position of an object. Using the motion map, the description of the object position and velocity is as follows:
The object starts its movement from the origin with a large velocity, before moving back to the origin with a smaller velocity. It stops for 1 second in the origin, then moves away with a larger velocity, Finally, it moves back towards the origin with a smaller velocity.
See attachment for the motion map, where the number on each arrow in the map, represents the position of the object.
Note that; the long arrow means large velocity while the short arrow means small velocity
Next, we analyze the direction and position using the arrows
The first arrow shows that the object starts from the origin with a large velocity
The direction and length of the second arrow show that, the object then returned to the origin with a smaller velocity.
There is a dot in front of the second arrow. This dot indicates that the object stops for one second.
The third arrow means that, the object moved from the origin with a larger velocity
The direction and position of the fourth and fifth arrows indicate that the object then moves towards the origin, with a smaller velocity.
Explanation:
