A ball has a mass of 140 g. What is the force needed to accelerate the ball at 25 m/s2? (Formula: F=ma) 3.5 N 115 N 165 N 4.5 N

The following voltage drops are measured across three resistors in series: 5.5 V. 8.2 V. and 12,3 V. What is the value of the source voltage to which these resistors arc connected?

Currently, is our planet an open or closed system?

Which statements correctly describe the properties of heat? Select all that apply. Heat is an essential component of life on Earth. Heat is energy that flows from one object to another. Heat flows from a hotter object to a colder one.

An initially uncharged 3.53 * 10 - 6 F capacitor and a 7290 Ω resistor are connected in series to a 1.50 V battery that has negligible internal resistance. What is the initial current I 0 in the circuit?

Is everyone in your class able to hear a quiet sound equally well?

Cómo se visualizan las moléculas en la ciencia y por qué necesitamos una representación visual

How many neutrons are present in an atom of iron-54? A) 26 B) 28 C) 30 D) 54

Sound waves are mechanical waves in which the particles in the medium vibrate ina direction parrallel to the direction of energy transport. What is another name of the type of wave that transfers energy in this way?

A sound from a source has an intensity of 270 db when it is 1 m from the source. what is the intensity of the sound when it is 3 m from the source?

What experimental term is it when a ruler is dropped to the floor?