Which is the correct symbol for an isotope of helium with 2 neutrons?

If we drop different weights from same height which will fall first to ground? Both of them hit the ground at the same time right?

When you boil water in a pot on the stove, which heats faster, the metal or the water

The nuclei of large atoms, such as uranium, with 92 protons, can be modeled as spherically symmetric spheres of charge. the radius of the uranium nucleus is approximately 7.4*10-15m.

In the series circuit below the power source is a 9-volt battery and three resistors are R1 = 7 ohm, R2 = 9 ohm and R3 = 2 ohm. What is the total resistance in the series circuit? R1 7 ohm + R2 9 ohm + R3 2 ohm = 18 Is this correct?

Which of the following is not projectile motion? A. A juggler throws a bean bag directly upwards with a velocity of 15 m/s. B. A kickball has the same horizontal velocity when it is kicked and when it lands. C.

Lightning heats the surrounding air to

Is a broom an example of a wedge?

Use your knowledge of the state of matter and the other physical properties of matter to write an explanation for what may have caused the following situation: Although it hasn't rained in a week, every morning the grass and the car windows are wet.

What is three example of technology

Lisa has three classes that each last 50 minutes qhat ia the total nuber of minutes of minutes of the three classe?