2 years ago

A bicycle rider travels 50.0 Km in 2.5 hours. What is the cyclist's average speed?

Physics

2 answers:

vekshin12 years ago

5 0

<span>If you divide the numbers you will get on average of 20km</span>

Usimov [2.4K]2 years ago

5 0

TO get the answer first you have to get the equation which is V/T and 50.0 would be V= velocity and 2.5 would be T=time. You now do as the equation states and divide which will provide you with the answer of 20

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Answer:

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Read 2 more answers

A flashlight contains a battery of two cells in series, with a bulb of resistance 12 Ohms. The internal resistance of each cell

Elina [12.6K]

Answer:

1.5024

Explanation:

Draw a diagram. Put the two cells in series. Now draw 3 resistors. Two of them equal 0.26 ohms each. The third one is the lightbulb which is 12 ohms.

R = 0.26 + 0.26 + 12 = 12.52

The bulb has a voltage of 2.88 volts across it. You can get the current from that.

i = E / R

i = 2.88 / 12 =

i = 0.24 amps.

Now you can get the voltage drop across the two cells.

E = ?

R = 0.26

i = 0.24 amps

E = 0.26 * 0.24

E = 0. 0624

Finally divide the 2.88 by 2 to get 1.44

Each cell has an emf of 1.44 + 0.0624 = 1.5024

4 0

1 year ago