Distance/ time = 100/5 = 20 km per hour
The average speed at 5hrs is 20 km per hour.
Answer:
Because they want attention
Answer:
Toward the centre of the circular path
Explanation:
The can is moved in a circular path: this means that it is moving by circular motion (uniform circular motion if its tangential speed is constant).
In order to keep a circular motion, an object must have a force that pushes it towards the centre of the circular trajectory: this force is called centripetal force, and its magnitude is given by
where m is the mass of the object, v its tangential speed, r the radius of the trajectory. This force always points towards the centre of the circular path.
Answer:
The anomalous expansion of water is an abnormal property of water whereby it expands instead of contracting when the temperature goes from 4o C to 0o C, and it becomes less dense. The density is maximum at 4 degree centigrade and decreases below that temperature as shown in graph.
Explanation:do you want me to explain it more??
Answer:
Temperature difference in kelvin =7K
Temperature difference in Fahrenheit degree = 12.6°F
Explanation:
Temperature difference = 7°C
273 is added to the Celsius value to convert to kelvin temperature.However if 273 is added to both the initial and final values of the Celsius temperature values, then the difference still stays the same. Hence the difference in kelvin is 7K.
To convert the temperature difference to Fahrenheit we simply multiply 1.8
=7*1.8 = 12.6°F