An atom has 14 protons and 15 neutrons, what is its mass number?

I'm desperate 20 pts.

What is the current in a circuit that has voltage of 121.3 V and a total resistance of 56.3 Ohms? Include units.

What is mummification?

What is common to the variation in the range and the height of a projectile

In your cellar there are three light switches in the OFF position. Each switch controls 1 of 3 light bulbs on the floor above. You may move any of the switches, but you may only go upstairs to inspect the bulbs one time.

Un bloque de m1 = 2,00 kg está conectado con otro bloque de m2 = 6,00 kg como se ve, las superficies son rugosas y su coeficiente de rozamiento cinético es igual para las dos y de valor 0,1, el ángulo del plano inclinado es 30°.

A small rock remains at rest in outer space while an astronaut pushes horizontally on it with a force of 20 N. Which of the following must be true? A. There is another horizontal force acting on the rock. B.

If an igneous rock has very large crystals of minerals that you can see when looking at it, which type of igneous rock is it

You have a 60-foot roll of fencing and a large field. You want to make two paddocks by continuing the fencing down the middle of a rectangular enclosure. What are the dimensions of the largest such enclosure you can make?

Crystallization is a separation technique used to produce rock candy from a sugar solution. true or false

A car traveling in a straight line has a velocity of 3.79 m/s at some instant. After 5.4 s, its velocity is 11.9 m/s. What is its average acceleration in this time interval? Answer in units of m/s 2