PLS HELP I WILL MARK U AS THE BRAINLIEST Element C and D are classified under the same group in the Periodic Table. Element C is a white solid and burns in Oxygen. Do you Think element D will burn in Oxygen? Give a reason for your answer.

Two particles of masses m and 2m are placed on a smooth horizontal table. a string, which joins these two masses, hangs over the edge supporting a pulley, which suspends a particle of mass 3m. the pulley has negligible mass. the two parts of the string on the table are parallel and perpendicular to the edge of the table. the hanging parts of the string are vertical. find the acceleration of the particle of mass 3m.

An open cart is moving along a straight frictionless horizontal track. when rain starts falling vertically into the cart, what happens to the speed of the cart?

Energy flows from the producer level to the level. is called