PHY11 DIAGNOSTIC EXAM REVIEW HANDOUT
that is suspended from the ceiling. The masses are released from
What is the maximum acceleration of a platform that oscillates with an
amplitude of 2.5 cm at a frequency of 8.3 Hz?
An automobile can be considered to be mounted on four identical springs as
far as vertical oscillations are concerned. The springs of a ce
In the figure, a uniform plank, with a length L of 5.79 m and a weight of 481 N, rests on the ground and
against a frictionless roller at the top of a wall of height h = 2.02 m. The plank remains in equilibrium
for any value of = 70.0 or more, but slips i
variations (What is varying?)
periodic variation oscillation
Frequency of oscillation is the number of
oscillations that are completed in each second.
The symbol for frequency is usually f (or ),
Impulse and Momentum
7.1 The Impulse-Momentum Theorem
DEFINITION OF IMPULSE
The impulse of a force is the product of the average
force and the time interval during which the force acts:
J F t
Impulse is a vector quantity and has the same direction
MOMENTUM, IMPULSE and
PHY11- Lecture- Week 4
THE BALLISTIC PENDULUM
A physical pendulum consisting of a large mass suspended from a rod; when it is struck by a
projectile its displacement is used to measure the projectile's velocit
What is a Fluid?
Substances with no strength
Deform when forces are applied
Include water and gases
Deforms a fixed amount or breaks completely
when a stress is applied on it.
Deforms continuously as long as any shear stress
Chapter 13. Elasticity
Photo Vol. 10
utilizes a long
elastic strap which
stretches until it
that is proportional
to the weight of
the jumper. The
elasticity of the
Fluid Flow or Discharge
When a fluid that
fills a pipe flows
through a pipe of
area A with an
average velocity v,
the flow or
discharge Q is
Q A v
Equation of Continuity
(constant density) fluid
A block of wood floats in fresh water with two-thirds of its volume V submerged and in
submerged. Find the density of (a) the wood and (b) the oil.
An iron anchor of density
lighter in water than in air. (a) What
is the volume o
q 1%. / "/1'
MAPUA INSTITUTE OF TECHNOI OGY IEPARIMENIZOF PH.YSK
STUDENTNAME _ SEAT no.
COURSE CODE/SECTION - u
A 1 How much alcohol al 2001 mus! 1».- adan' so 60 slams ol lhe some alcohol! at 20'C IO Neal II to SO'C"
a 12 grams la 19 grams c 29 918nm d
~ Diagnostic Ex
am ~ SET A
' b!.E:Choos-: Nu: nngww V "4 '1 v r, .: ' _*. iv . . t- r_.- .
y 3'»! CVOZ'IQ on
c 1;);- u I
T'mn n-,_; man: my,
-v. - y -
«- .'.' r
«1w. " 66 '.
81.14/300 = 0.27046
-ln(0.27046)=1.30761 not 63 mali calu
b) half life 300/2 = 150, 150/300 = 0.5 , ln(0.5)/ln(0.27046) = 0.53
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