The throbbing caused by sounds of slightly different frequencies that results because of periodic constructive and destructive interference is called:

610

Name the metal that burns in oxygen with a dazzling white flame

3336

Giraffe in Arabic means "the highest of all." The height of a giraffe is an average of 5 m, its mass is about 800 kg and hooves is an area of approximately 625 cm2. Using a straw from a material nedeformabil a giraffe trying to drink water from a lake, not to condescend. What is the ratio of the minimum pressure to be applied giraffe, mouth, at the end paiului to drink water and pressure of giraffe on the ground. The density of water. g = 10 m/s2

1643

A color made from the addition of two primary colors is called:

523

What is the essence of quantum physics? What makes it so different from classical physics? : quantum physics

478

In which medium the velocity of sound is large?

505

Explain what is photometry?

502

heat cannot pass from a cooler substance to a warmer substance without some other process being involved. This is an example of which law of thermodynamics?

518

The system shown in the figure is in equilibrium. The metal spheres are identical and each has a mass of 2 kg. The surface areas of the pistons are equal and 100 square centimeters each. The density of water is 1 g per cubic centimeter. Assuming that the frictions and masses of the pistons are negligible, what is the mass of G? ( g = 10N/kg )

1645

Graph between frequency of photon and velocity of photo electron?

525

How are amps and watts related?

524

What is the wavelength of sound in air?

533

Explain the cause of brownian motion?

516

Explain virtual image?

552

Explain what instrument is used to measure volume?

511