8. A small block rests on flat bottom of a deep howl that is placed on a horizontal floor. There is no friction between the block and the bowl as well as between the bowl and the floor. Total mass of the bowl and the block is M. If the bowl is given a horizontal velocity by a sharp hit, the block rises to a maximum height h sliding on the walls of the bowl. Which of the fullowing statements are correct? (a) Maximum kinetic energy of the bowl is Mgh. (b)If the bowl is lighter than the block, minimum kinetic energy of the bowl is zero. To predict minimum kinetic energy of the bowl, we must know ratio of the masses. (d)To predict maximum as well as minimum kinctic energy of the bowl, we must know ratio of the masses.

A Van de Graff generator can kill a person. a) True b) False

An object with an imbalance of electrons and neutrons is electrically charged.  True  False

ФЫ В А ПРО ВАПРОЛДЗАПРОЛджэ ЯЧСМИТНЧСМИТЬБНСМИТЬБЮ SOLVE STEP BY STEP IN DIGITAL FORMAT Two protons are on each side of an electron, as shown in the figure. The electron is 3μm from the proton to its left and 10um from the proton to its right. A) What is the magnitude and direction of the net force on the electron? B) Determine the electric field produced by the three charges 10 µm from the proton on the right. on horizontal axis ЙЦУКЕНГШУКЕНГШЩЗКЕНГШЩЗХъ

Two charged particles repel each other with a force of 36 N. If the distance between them was doubled, the force would then be N. Answer in a whole number.

4. How do two objects with like charges interact? What is the evidence from your investigations?