What is the charge on a hypothetical ion with 35 protons and 37 electrons?

To become positively charged an átom must

What is the difference between inertia and acceleration?

What is a net force? a. The weight excluding the container b. The vector sum of all forces in a problem c. The vector sum of all forces acting on an object d. The vector force applied by a net e. The vector sum of all forces that add up to zero

Which of the following do you need to know to calculate impulse?

After completing 10 years of experimentation, a scientist reports a new scientific law about the movement of sand on beaches. How do you know that this information cannot be valid?

A 1.0 kg ball is thrown into the air with an initial velocity of 30 m/s. How much kinetic energy does the ball have?

Have scientists discovered a fifth fundamental force of nature?

To study the properties of various particles, you can accelerate the particles with electric flelds. A positron is a particle with the same mass as an electron but the opposite charge (+e). Express your answer in vector form.

A lawnmower engine running for 20 minutes does 4560000 j of work. What is the power output of the engine

Which of the following is a conductor for electricity? Question options: wood wool water rubber tire