introduction

Question 1

luminous intensity

Answer 1

candela Cd

Question 2

centi

Answer 2

10^-2

Question 3

Mili

Answer 3

m 10^-3

Question 4

micro

Answer 4

10^-6

Question 5

nano

Answer 5

10^-9

Question 6

pico

Answer 6

10^-12

Question 7

kilo

Answer 7

10^3

Question 8

mega

Answer 8

10^6

Question 9

Giga

Answer 9

10^9

Question 10

tera

Answer 10

10^12

Question 11

1l is how many m^3

Answer 11

0.001m^3

Question 12

1l is how many dm^3

Answer 12

1dm^3

Question 13

state the relationship of sina and cosa

Answer 13

sin2a + cos2a =1

Question 14

scalar product

Answer 14

modulus of A x modulus of B x cosa

Question 15

cross product

Answer 15

modulus of A x B = A x B sina

Question 16

what happens for the function 1/x as x approaches infinity

Answer 16

tends to 0

Question 17

what happens for the function 1/x as x approaches negative infinity

Answer 17

tends to 0

Question 18

what happens for the function 2^x as x approaches infinity

Answer 18

tends to infinity

Question 19

what happens for the function e^x as x approaches negative infinity

Answer 19

tends to zero

Question 20

physics

Answer 20

the natural science that studies matter, its motion and behaviour through space and time