Answer: The average speed is 5.71 m/s
Explanation:
The average speed in this run will be the quotient between the total distance that the runner traveled, and the total time it took.
Distance = 400m + 400m + 800m = 1600m
Time = 80s + 70s + 130s = 280s
Then the average speed is:
S = 1600m/280s = 5.71 m/s
The only thing about a wave that has units of time is the wave's <em>PERIOD</em>.
To determine what the cyclists average speed is, simply divide the distance the cyclist has travelled by the time the cyclist has traveled for.
Assuming that this is the average rate the cyclist is moving at it would be 12 km/hr.
The value of v; initial velocity is determined as, v = h/t + gt.
<h3>What is initial velocity of an object?</h3>
The initial velocity of an object is the velocity of the object before the effect of acceleration, which causes the change of velocity.
h = vt - gt²
to solve for v (the initial velocity) we will make v the subject of the formula.
h + gt² = vt
divide both sides of the equation by t
h/t + gt = v
Thus, the value of v; initial velocity is determined as, v = h/t + gt.
Learn more about initial velocity here: brainly.com/question/19365526
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Hello!
In a thermostat, the property of the bimetallic coil that allows it to contract and expand is that The two metals absorb different amounts of thermal energy.
This bimetallic coil is used to transform thermal energy into mechanical movement. Two metals with different thermal expansivity are joined together parallelly and the changes of temperature cause bending in different directions depending on if the temperature is rising or descending.
The differences in the thermal energy absorption of the two metals are the basis for the mechanism of this device.
