A 0.3 kg model rocket's engine is designed to deliver an impulse of 4.0 Newton–seconds. If the rocket engine burns for 1 seconds, what average force does it produce?

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

Calculate the minimum energy required to remove one proton from the nucleus 126c. this is called the proton-removal energy. (hint: find the difference between the mass of a 126c nucleus and the mass of a proton plus the mass of the nucleus formed when a proton is removed from 126c.) express your answer with the appropriate units. emin e m i n = nothing nothing request answer part b how does the proton-removal energy for 126c compare to the binding energy per nucleon for 126c, calculated using eb=(zmh+nmn−azm)c2?

Involves organizing and breaking down information into easier groups to expand capacity. rehearsal is the verbal repetition of information. these techniques are especially important for the improvement memory.