The electric car has a range of 400 km with a fully charged battery. The diesel car has a range of 1120 km with a full tank of diesel.
Explain the difference in the time needed to complete a 500 km journey using the
electric car compared with the diesel car.
Assume both cars travel at the same speed.
[2 marks)

At an oceanside nuclear power plant, seawater is used as part of the cooling system. this raises the temperature of the water that is discharged back into the ocean. the amount that the water temperature is raised has a uniform distribution over the interval from 10° to 25° c. what is the standard deviation of the temperature increase?

What object a collides with object b and bounces back its final momentum is?

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?