A scientific model doesn't need to be something physical. It can also be mathematical

What potential difference is needed to accelerate a he + ion (charge + e, mass 4u) from rest to a speed of 1.8*106 m/s?

A student constructed a series circuit consisting of a 12.0-volt battery, a 10.0-ohm lamp, and a resistor. The circuit does not contain a voltmeter or an ammeter. When the circuit is operating, the total current through the circuit is 0.50 ampere.

Why do satellites in orbit fall to the ground? why dont they fly into space?

How is the Sun different from all other stars? A. The Sun is closer than all other stars. B. The Sun is hotter than all other stars. C. The Sun is brighter than all other stars. D. The Sun is larger than all other stars.

What is an example of convection in earths systems

If wavelength is kept constant, which increases as the speed of a wave increases? Question 13 options: period frequency amplitude phase

If the masses of an object increase and their distance from each other stays the same the force of gravity decreases increases stays the same increases then decreases

Which are strong bases? Check all that apply. HCI NaOH NH3 H2CO3 ΠΗΝΟΣ OKOH

The universal force that is effective over the longest distance is called? A:electromagnetic B: strong nuclear C: weak nuclear D: gravity

What is a string theory?