Heat a. Calculate the time required for an
electric water heater to raise
temperature of 10 litres of water
from 15°C to 65°C, if the heating
element takes a current of 10A from
a 240V supply and the efficiency of
the heating process is 80%. Take
specific heat capacity of water to be
4180J/Kg and 1kg of water as 1 litre.​

talk back to him about the sport and show him your expertise or leave the room

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

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