I believe the correct answer is true. <span>A machine can make doing work easier by reducing the force exerted, changing the distance over which the force is exerted, or changing the direction of the force. Hope this answer the question.</span>
The bending occurs because light travels more slowly in a denser medium.
Mercury from toxic pollutants that are dumped into the oceans and other water bodies get integrated into the food chains through bacterial activities. The mercury, eaten by fishes accumulate in their systems to various extents; some fishes contain high concentrations of mercury while some have moderate concentrations. Tuna is an example of fish that has moderate concentration of mercury, which is 0.32 part per million of mercury.
Tuna fish can be eaten in moderate quantity, about 3 - 5 ounces daily two or three times a week as recommended by FDA. Excessive consumption of tuna fish will introduce tangible amount of mercury into one's system and this can lead to various health problems. Mercury can cause both acute and chronic poisoning and degeneration of the nervous system. Diseases such as tremors, memory loss, vision loss and numbness of extremities have also been linked with mercury poisoning. Thus, it is not advisable to consume tuna fish on a daily basis.
Your answer should be A.km/s does s mean speed?
Answer:
28.73 m from the base of the cliff collide happen
Explanation:
Equation for ball dropped from 50 cliff is reaches distance x in t seconds isi given by
stone is thrown up from the bottom with speed u=24 m/s . it reaches distance y when stone collide with ball.(g is negative here)
we know that total distance traveled by ball and stone is 50 m
adding equation 1 and 2, we get time t
substitute this time in equation 2, we can get the required distance where they collide
28.73 m from the base of the cliff collide happen