Chiếu 1 tia sáng đi từ môi trường có chiết suất n vào ko khí, sao cho tia khúc xạ vuông góc với tia phản xạ . Góc khúc xạ r trong trường hợp này được xác định theo công thức nào

the total distance traveled by the car is

30km + 49km = 79 km .

the following is queen elizabeth’s purposes:

- to encourage the parliament that the technique of picking successors to the seat based merely on birthright needs to be reviewed.

- (not) to convince the parliament that her kid should not be measured as a likely choice for heir to the english power.

- to persuade the parliament that merely since she has a child does not assure that the kid will be a capable leader.

- to sway the parliament how shattering it could be if they proceeded discourteously concerning her or her child.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2