Fie următoarele definiţii: A. Logica este știința gândirii logice. B. Cercul este figura geometrică plană care nu este nici romb, nici dreptunghi a. Menţionaţi o regulă de corectitudine pe care le încalcă definiţiile date b. Precizați o altă regulă de corectitudine a definirii, diferită de regula identificată la punctul a. Şi construiţi o definiţie care să o încalce, având ca definit termenul „logica", respectiv ,,cerc".

Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?

The ability to make things happen is also called a. heat b. force c. matter d. energy

We will use a video to study faraday’s law of electromagnetic induction by analyzing the induction that occurs due a coil of copper wire sliding along an air track that passes through an external magnetic field. specifically, we will: examine some of the main principles behind faraday’s law. apply lenz’s law to determine the direction of the induced emf. take measurements of the induced emf from the voltmeter as the coil passes into and out of the external magnetic field. use the horizontal scale provided to determine the speed of the coil. calculate the magnetic field induced in the coil as it passes into and out of the external magnetic field.