How many neutrons does element X have if its atomic number is 24 and its mass number is 99?

Which of the following is a heterogeneous mixture. A) salt water B) kool-aid C) chicken noodle soup D) sugar and water

Find the energy in joules required to lift a 2,500g object a distance of 500cm

True or false 1. in a forced air heating system, the warm air circulates by convection. T/F 2. in an internal combustion engine, fuel burns outside the engine in chambers called cylinders. 3.

A car travels 50 km in 25 km / h and then travels 60km with a velocity 20 km/h and then travels 60km with a velocity 20 km/h in the same direction. Find the velocity

Calculate the kinetic energy of a 0,6kg ball when it is thrown and reaches a speed of 5 m/s A) 7J B) 6J C) 10 J D) 7,5 J E) 16 J

What types of exercises for stomach

Which states the law of conservation of energy? A. Energy cannot be created or destroyed, but it can be converted or changed into different forms. B. Energy can be created or destroyed, and it can be converted or changed into different forms. C.

What is density? How can you find density?

A 15 kg child experiences an acceleration of 0.25 m/s2 as she is pulled 1.7 m horizontally across the floor by her sister. what is the change in the child's kinetic energy?

A piece of candy has 5 calories (or 5000 calories). if it could be burned, leaving nothing but carbon dioxide and water, how much heat would it give off?