Glaciers cuase they was there now its not and a glacier carved the great lakes in the us
The answer is : <span>A model could be used to test his design in a lab. </span>Marty is developing a new way to heat an airplane's windshield to prevent it from accumulating ice when in flight. A thin layer of clear, conductive material is injected between two layers of thick windshield plastic. A very small electric current is run through the inner material to keep the plastic layers warm. The model that could help Marty develop his design is the kind of model that could be used to test his design in a lab.
Answer:
For any v-t graph the acceleration is the slope of the graph. For average acceleration in a time period ‘t’ consider the change in velocity in time t and divide it by the time t. For instantaneous acceleration you need to go into the realm of differential calculus.
Explanation:
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Answer:
Velocity
Explanation:
In physics, there are two types of quantity:
- Scalar quantity: these quantities have a magnitude only, so they don't have a direction. Examples of scalar quantities are mass, temperature, time...
- Vector quantity: these quantities have both a magnitude and a direction. Example of vector quantities are velocity, acceleration, force...
An example of vector quantity is velocity. Velocity is defined as
where
is the displacement of an object, which is a vector connecting its initial position to its final position of motion
is the time elapsed
Therefore, velocity has a magnitude and a direction (which is the same as the direction of the displacement). This quantity is used in daily life in many situations, for example when we drive in a car, it is useful to know the velocity at which the car is going.
Answer:
Train will take 156 sec to travel 12km.
