How does the heating element of a portable electric heater work

Light passes through a single slit of width 8.32x10^-5 m. The first (m=1) diffraction minimum occurs at an angle of 0.347. What is the wavelength of the light in nanometers? (Hint: The answer will be between 400 and 700 nm.)

Three forces act on a particle that moves with a constant velocity. Two of these forces are: F1 = 2.0i + 4.0j - 2.0k and F2 = - 8.0i + 9.0j - 8.0k, all components expressed in N. What is the magnitude of the third force?

Which of the following is a vector quantity? a) 83 ounces of liquid b) 10 m/s down c) 15 seconds of travel d) 55 km/hr in a truck

The main disadvantage of nuclear power is

Can fly but have no wings. I can cry but I have no eyes. Wherever I go, darkness follows me. What am I? I will give brainiest if you get it correct

What is Newton's second law of motion?

a father has brown hair (B), but the offspring have red hair (a recessive trait), like their mother (b). How is this possible?

You move a 4 N object 10 meters. Find work. Then find power if it is done in 5 seconds.

An explanation of the steady state theory

If a car traveling at 60 km/h will skid 20m when its brakes lock, how far will it skid if it's traveling at 120 km/h when it's brakes lock?