which of the following is the name of the process scientists use to gain knowledge abut the physical world

What is the weight of an object that has a mass of 3.5kg

A charged balloon will stick to a neutral wall. which process is involved?

Generators need a source of energy to produce electricity. Which form of energy is a nonrenewable source of energy? hydro (water) energy geothermal energy fossil fuel wind energy

How are the different firework shapes produced

James Prescott Joule demonstrated that work could generate heat using his churn. In order to truly demonstrate that energy is conserved, the next logical step would have been to convert that heat entirely back to work. why was this not done?

How do inertia and centripetal force combine to keep an object moving in circular motion?

Compare and contrast the average kinetic energy of 0.5 L of coffee at 34°C, 0.5 L of coffee at 38°C, and 0.25 L of tea at 43°C.

A 7700-kg box car traveling at 14 m/s strikes a second car at rest. The two stick together and move off with a speed of 5.0 m/s. What is the mass of the second car?

What will happen if there is a change in a magnetic field?

Question 2 10 pts The voltage in a particular circuit is 10.0 V. The current in the circuit is 20 A. What is the resistance? A. 2.0 B. 30 C. 200 D. 0.5