Electrons are what?

A student measured the density of gold to be 20.4 g/cm3. The accepted value of the density of gold is 19.3 g/cm3. What is the percent error of the student's measurement? A. 6.09% B. 0.70% C. 5.70% D. 1.35%

Which structure interacts with the next neuron in the path of the nerve impulse? How?

When a positive electrical charge comes in contact with a neutral electrical charge what happens? A. They attract each other B. The positive charge becomes negative C. The positive charge is cancelled out D. Nothing

What happens to the magnitude of the charge on each plate of a capacitor if the potential difference between the conductors is doubled?

In a two-body collision, a. momentum is always conserved. b. kinetic energy is always conserved. c. neither momentum nor kinetic energy is conserved. d. both momentum and kinetic energy are always conserved.

If the speed of a vehicle was reduced from 65 miles per hour to 35 miles per hour, by approximately how many kilometers per hour was the speed reduced? (1 kilometer = 0.62 mile, rounded to the nearest 0.01 mile)

What is the acceleration rate of an object if the amount of force applied on the object is 75 Newtons and the object has a mass of 15 kilogram?

Two children pulling the rope with the same force in opposite direction is that an unbalanced force or a balanced force

During sublimation particles in a solid room deodorizer move directly into the air as a gas how does the movement of the deodorizer particles change? the particles ___.

A 50-g ball rolls across the table at 2 m/s. A 100-g ball rolls across the same table at 1 m/s. Which ball has more momentum?