During alpha decay, a radioactive atom releases an alpha particle that is equivalent to the nucleus of a helium atom. So, the new atom that is formed should have protons than the original atom.
A. two more
B. two fewer
C. four fewer
D. four more

The law of reflection states that the angle of reflection is equal to the angle of

Aleaky 10-kg bucket is lifted from the ground to a height of 15 m at a constant speed with a rope that weighs 0.7 kg/m. initially the bucket contains 45 kg of water, but the water leaks at a constant rate and finishes draining just as the bucket reaches the 15-m level. find the work done. (use 9.8 m/s2 for g.) show how to approximate the required work by a riemann sum. (let x be the height in meters above the ground. enter xi* as xi.) lim n → ∞ n (9.8)(45−3 xi) i = 1 δx express the work as an integral. 0 dx evaluate the integral. (round your answer to the nearest integer.) j

With physics question #5? for any !