The temperature of water in a beaker is 45°c. what does this measurement represent

Explanation:

Temperature is defined degree of hotness of coldness of a substance.It tells the amount of heat possessed by the particles of the substance.In other words it can also be described as average kinetic energy of the particles of the substance or in the system.

The 45°C represents that the average kinetic energy of the water molecules in the beaker.

photocells convert light energy to electricity

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft