Hi there!
There are 5,280 ft in a mile so multiply that by 60
5,280 × 60 = 316,800 ft
There are 60 min in an hour and 60 sec in a minute so multiply 60 sec by 60 sec
60 sec × 60 min = 3600 sec
Now divide 316,800 ft by 3600 sec to get:
316,800 ft ÷ 3600 sec ≈ 88 (ft/s)
Answer:
Free body diagram
Explanation:
A free body diagram shows all the forces acting on an object. an example would be a box sitting on the floor.
Draw a square and you would have an arrow from the box pointed down to represent gravity pulling the box down and an arrow from the box pointing upwards to represent the normal force of the ground pushing back. in the scenario the two arrows would be equal length because the forces balance out since the box is motionless. in a situation where there is motion one arrow would be bigger such as if a box was falling. in this example it would have an arrow down to show gravity but no arrow up because it is in free fall. The sum of the forces which is represented by the arrows is what your net force is. The free body diagram helps you visualize all the forces acting on an object.
Answer:
139 N
Explanation:
Thats the answer on e2020
Answer:
A variable (often denoted by x ) whose variation does not depend on that of another.
Explanation:
Answer:
c. Performs better on training data as the training process proceeds, while performing worse on a held-out test data
Explanation:
An over-fitted model is one that will perform best on training but would fail or do worse on a held-out test data.
Such models are optimum for a just a particular set of data but would grossly failed when extrapolated to some other data set not novel to it.
- Over-fitting a model implies that a model closely corresponds to a set of data but would not perform well with others.
- It is usually as a result of a model adapting the noise and other details of a particular data set and thereby incorporates it.
- This makes it difficult for the model to fit into another data set.