DELFT

Question 1

rigid accelaration

Answer 1

a=v^2/r; = 4pi^2*r/T^2

Question 2

rigid velocity

Answer 2

v=2pir/T =wr

Question 3

Ek with momentum

Answer 3

p^2/2m

Question 4

Torque

Answer 4

t=Frsin=Inertia*angular a

Question 5

impulse rigid

Answer 5

L=Inertia w

Question 6

Ek rigid; momentum

Answer 6

Ek= Inertia w^2 /2=L^2/2Inertia

Question 7

Pressure

Answer 7

P=F/A

Question 8

resistivity

Answer 8

resistivity=RA/L

Question 9

Power electricity

Answer 9

P=IV=I^2 R=V^2/R

Question 10

emf

Answer 10

emf=I(R+r)

Question 11

SHM a

Answer 11

a=-w^2 x

Question 12

T period without f

Answer 12

T=2pi/w

Question 13

T pendulum

Answer 13

T=2pi root:l/g

Question 14

T spring

Answer 14

T=2pi root: m/k

Question 15

wave speed

Answer 15

v=labda f= lamda/T

Question 16

constructive interference

Answer 16

path difference=n lamda

Question 17

destructive interference

Answer 17

path difference= lamda(n+0.5)

Question 18

angle SMH

Answer 18

angle= lambda/b

Question 19

SMH with sin fromula

Answer 19

n lambda=d sin

Question 20

electric field

Answer 20

E=F/q=V/d E=-Ve/r

Question 21

Gravitational Ep; Ek; ET

Answer 21

Ep= -G m1m2/r Ek= -0.5Ep ET=o.5Ep

Question 22

Gravitational potential; Work

Answer 22

Vg= -GM/r W=m change Vg

Question 23

gravitational strength g

Answer 23

g=GM/r^2= - Vg/r

Question 24

v esc and v orb

Answer 24

v esc=root: 2GM/r v orb= root: GM/r

Question 25

Electric potential

Answer 25

Ve=kQ/r

Question 26

Induction emf

Answer 26

emf=BvL= -N flux/t

Question 27

Glide ratio

Answer 27

Horizontal/vertical

Question 28

Taper formula and meaning

Answer 28

Ct/Cr how much wing narroes at the tips

Question 29

Cd

Answer 29

Cd= Cl^2/eARpi

Question 30

Parasite drag components

Answer 30

Skin friction (smoothness rpughness) acts parallel; Form (creates pressure differences wing) acts perpendicular; wave (due to increased v, retards forward of an aircraft

Question 31

Specific range

Answer 31

V/F

Question 32

Fuel flow

Answer 32

F=CpPbr=Cp Pa/mu (cia kitaip Pr)

Question 33

Thrust

Answer 33

T= m.(Vj-V)

Question 34

Mass flow

Answer 34

rho AV=const

Question 35

Thermal P

Answer 35

Q=m.fH

Question 36

Jey efficiency

Answer 36

mu j=Pa/Pj=2V/1+Vj/V

Question 37

Types of space propulsion

Answer 37

Liquid proplent;solid proplent;hybrid;thermo nuclear

Question 38

Solid proplent advantages/dis

Answer 38

small and cheaper, but once strated cannot control it

Question 39

Ve

Answer 39

Ve=TMflow

Question 40

M propelent

Answer 40

Mstart-Mend

Question 41

Vend

Answer 41

Veln(Mstart/Mend)

Question 42

Relative a

Answer 42

a1-a2=-GM/r2