Провідник 40 сантиметрів поміщений в магнітне поле с індукцією 500 миллитесла под кутом 30 градусів до магнітного поля на цей провідник діє сила ампера 5 нютонів знайти силу струму у провіднику. срочно

What do butterflies have on their feet which allows them to sense different strengths and types of nectar? a.mechanoreceptors b.acoustic receptors c.substratum receptors d.chemoreceptors

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?