Physics, 18.05.2021 18:50 NaVaThEBeAsT

A heating coil of resistance 20 ohms is connect to a 220V to boil a certain quantity of water in a container of heat capacity 100J/K for 2minutes. If the initial temperature of the water is 40°C, calculate the mass of the water in the container. [Take S. H.C of water 4200J/Kg/K]

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 10:00, Calirose

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?

Answers: 2

continue

Physics, 22.06.2019 14:30, gabriellam20

A10nc charge sits at a point in space where the magnitude of the electric field is 1500 n/c. what will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? assume the system is big enough to consider the charges as small test charges.

Answers: 1

continue

Physics, 22.06.2019 17:40, tylercapozzoli

Scientists follow specific processes in order to determine valid explanations and conclusions from observations. david observed strange lights in the sky above his home outside of roswell, new mexico. the only explanation that makes sense to him is that there are ufos in the area. what should david do next to verify his explanation?

Answers: 1

continue

Physics, 22.06.2019 22:50, cbogrett

Cyclotrons are widely used in nuclear medicine for producing short-lived radioactive isotopes. these cyclotrons typically accelerate h- (the hydride ion, which has one proton and two electrons) to an energy of 5 mev to 20 mev. this ion has a mass very close to that of a proton because the electron mass is negligible—about 1 2000 of the proton’s mass. a typical magnetic field in such cyclotrons is 1.9 t. (a) what is the speed of a 5.0-mev h-? (b) if the h- has energy 5.0 mev and b = 1.9 t, what is the radius of this ion’s circular orbit?

Answers: 1

continue

You know the right answer?

A heating coil of resistance 20 ohms is connect to a 220V to boil a certain quantity of water in a c...