B) Which device is used to measure the weight of a body?

Physical balance

Spring balance

Beam balance

Top-pan balance

A thin beam of light of wavelength 625 nm goes through a thin slit and falls on a screen 3.00 m past the slit. You observe that the first completely dark fringes occur on the screen at distances of ±8.

What is amplitude, wavelength, and frequency?

Which of the following is not a problem with open fireplaces? a. not all of the available energy is extracted from the fuel. b. toxic gases are released as the fuel burns. c. radiant heat is released. d. smoke and dust particles pollute the air.

Which of these statements best describes an effect of changes in Earth's magnetic field? Southern lights are seen at high altitude places like Alaska. Northern lights are seen at low latitude places like Michigan.

While driving north at 21 m/s during a rainstorm you notice that the rain makes an angle of 36° with the vertical. while driving back home moments later at the same speed but in the opposite direction, you see that the rain is falling straight down.

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.