This document provides information about Eco-Scoala cu Clasele I-VIII nr. 16 "Take Ionescu" Timisoara including the director Prof. Dr. Mihai Parvulescu, a radio program with Adriana Dolcianu Marascu, and classes taught by Prof. Anemaria Barlovan and Inv. Mariana Culciar. It also lists the assistant directors Prof. Doina Geana and Prof. Sorin Murarescu.
The document discusses the Aurora Borealis (Northern Lights). It explains that the lights are caused by charged particles from the sun interacting with the earth's magnetic field. During solar storms, electrons and protons from the sun enter the earth's atmosphere where they cause nitrogen and oxygen atoms to become energized and glow in colorful patterns. The particles are guided by the magnetic field to the magnetic poles, appearing as lights near the north and south poles. The size and shape of the lights depends on the level of solar activity.
This document provides information about Eco-Scoala cu Clasele I-VIII nr. 16 "Take Ionescu" Timisoara including the director Prof. Dr. Mihai Parvulescu, a radio program with Adriana Dolcianu Marascu, and classes taught by Prof. Anemaria Barlovan and Inv. Mariana Culciar. It also lists the assistant directors Prof. Doina Geana and Prof. Sorin Murarescu.
The document discusses the Aurora Borealis (Northern Lights). It explains that the lights are caused by charged particles from the sun interacting with the earth's magnetic field. During solar storms, electrons and protons from the sun enter the earth's atmosphere where they cause nitrogen and oxygen atoms to become energized and glow in colorful patterns. The particles are guided by the magnetic field to the magnetic poles, appearing as lights near the north and south poles. The size and shape of the lights depends on the level of solar activity.
1) A cart with mass m0=20 kg is being pulled across a horizontal plane by a force F=20 N at an angle of α=60°. Using equations of motion, the time taken to travel a distance d=300 m is calculated as 8.66 minutes, and the velocity at this point is 17.32 m/s.
2) The normal force N acting on the cart is calculated as 182.7 N. Since N<weight, the cart is being lifted by the vertical component of the pulling force.
3) If the coefficient of friction is μ=0.5, the time and velocity are recalculated using this value in the equations of motion.
1) A cart with mass m0=20 kg is being pulled across a horizontal plane by a force F=20 N at an angle of α=60°. Using equations of motion, the time taken to travel a distance d=300 m is calculated as 8.66 minutes, and the velocity at this point is 17.32 m/s.
2) The normal force N acting on the cart is calculated as 182.7 N. Since N<weight, the cart is being lifted by the vertical component of the pulling force.
3) If the coefficient of friction is μ=0.5, the time and velocity are recalculated using this value in the equations of motion.
Românismul de la Mihai Eminescu la Grigore Vieruinachirilov
Proiect “Educație online fără hotare” 2023 - 2024,
implementat de Direcția Generală Educație, Tineret și Sport a municipiului Chișinău în cadrul Proiectului “Educație online”