Một nguồn S phát ra 1 chù sáng . Phát biểu nào ssau đây sai? a. Các photon trong chùm sáng đó sẽ dừng lại nếu gặp vật cản b. Các photon trong chùm sáng đó có tốc độ phụ thuộc vào môi trường truyền c. Năng lượng của các photon trong chùm sáng đó có thể khác nhau d. Chùm sáng đó được tạo thành bởi cac hạt gọị là photon

you can not change you age soon as you signed up. the only way is too delete your account and use another account to sign up and put your correct age.

the benefits of raising bc’s minimum wage to $15 through a

series of pre-announced staged increases far outweigh the likely

costs. claims that such an increase will lead to massive job losses

in low-wage sectors of the economy are not credible.

• an increase to $15 would result in some job losses. however,

the likely impact is less than a 1 per cent reduction in the overall

provincial employment rate, and a 7.6 per cent reduction in the

employment rate for those currently making between $10.25

and $15 per hour.

• the large job loss impacts predicted by some opponents of

minimum wages misrepresent the existing economic research. in

reading and using that research, it is important to recognize that

estimates showing job loss effects of minimum wage increases

apply only to teenagers. estimated effects for young adult and

adult workers range from insignificant to non-existent.

• focusing on teenage workers plays up an inaccurate stereotype

about who earns very low wages in bc and leads to exaggerated

claims about job losses. only 26 per cent of those currently making

between $10.25 and $12 are teenagers, and only 5 per cent

of those making between $12 and $15 are teenagers.