Answer:
Speed in meter/sec will be 32.1777 m /sec
Explanation:
We have given speed = 72.4 miles per hour
We have to convert this speed in meter per second
We know that 1 miles = 1.6 km
So 72.4 miles = 72.4×1.6= 115.84 km
We also know that 1 km = 1000 m
So 115.84 km 
We know that 1 hour = 60×60 = 3600 sec
So 
This is known as Wien's Law:
The relationship is:
wavelength = 0.0029/temperature
It is an inversely proportional relationship.
The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object. As the force acting upon an object is increased, the acceleration of the object is increased. As the mass of an object is increased, the acceleration of the object is decreased.
It's not the potential energy. It's just the potential.
It's greatest at the positive terminal of the battery or power supply.
