How many neutrons does element x have if its atomic number is 48 and its mass number is 154?

An olympic hurdler accelerates at a rate of 15.5 m/s2. what is the rate in miles/min2?

Laura thinks that the oak tree has the largest leaves of all the trees at the playground. How could she best test her prediction? A. Measure the height of each of the trees at the playground. B.

What effect did the internal combustion engine have on transportation?

A man pushes a lawn mower on a level lawn with a force of 250N. If 40% of this force is directed downward, how much work is done in joules by the man in pushing the mower 6.2 m?

Why a control is needed in a valid experiment

An example of objects the move in revolution

How many hops does a kangoroo do in 1 day

What are the average velocity and average acceleration of the tip of a 2.4 cm long hour hand of a clock?

What is the number one and most important rule to remember in soccer?

Why are convection currents; why are they hotter and colder parts of earth