Answers by visitors named: scott
Work is expressed by- Fd
5>4b+9>17
- -
go browns
What event led to Great Britain's renewed interest in Egypt in the late 1800s?
wouldn't it just be 40^1/2 that's 6.32 so 6 rounds
Well This is what I did to get 40^.5 you know the amount Y and then you already know the function X its Y^x.
that's what I just went over today in class
pv/rt=n
sorry it suppose to say sqrt18 +sqrt 32=
first you need to determine the volume of the balloon and the internal pressures. Using those you can use archimedes principle to figure out how much water is displaced and therefore the bouyant force. Then you must determine how much the water pressure will cause the balloon to shrink. Also the "downward" force, the force opposing the bouyant force I believe should be equal to the weight of the column of water above the balloon you therefore need to know the surface area as you look down at the balloon from above to determine the volume of the column pressing down on the balloon.
it is suppose to lok like 4-z over z-2 minus 8z-5 over 2-z equals sorry not really sure how to right mayh problems out using differnt symbols
625.grams
Well if you divide 12 children into 5 groups you might find yourself in jail....I'm just saying
not sure what you are saying
is the answer one solution
18 times 4 times 14
i think its about the whole thing or like the part that is,then what is the structure of it
yes, and i think if its the whole sentence then its just asking what is the structure of it
whats the question
thank you and i have a few more to do the next one is:We walked along the mountain path looking for unusual flowers. so it would be nominative absolute?
looking for unusual flowers
:) By mistake I opened a package addressed to my sister. is the next one and would be infinitive phrase?
i think the whole sentence is infinitive
what is the question?
give me the passage its from or like write the paragraph its used in
f = m * a ___ a = f / m
a = .052 N / 474 kg
v = a * t ___ t = v / a
t = 880 m/s / (.052 N / 474 kg)
t will be in sec__convert to days
Al + As + B = 124
Al + B = 102
subtracting equations ___ As = 22
Al + As = 86
subtracting equations ___ Al = 64
subtracting equations ___ B = 38
the gravitational force between two objects is the same for both objects
d/dx [cos(x)]^2 = 2 cos(x) * [-sin(x)]
the vertical component of the brick's velocity is 13.9 * sin(27.6º)
0 = (-.5 g 3^2) + [13.9 * sin(27.6) * 3] + (building height)
a. w = f * d = 150 * 4 = 600 Nm
b. 600 / .5 = 1200 Nm
.4 = .5 g t^2
.8 = 9.8 t^2
the x-velocity is 76/t
65 = .5 g t^2
130 = 9.8 t^2
the distance is 7.8*t
you kind of just droped 1/di there. where did it go?
I just don't get how you got to:
1/di - 1/2di
and then you went from
1/di - 1/2di = 1/2di.....you just droped 1/di. That doesnt make any since.
joules :)
the tension in the string provides the force for the centripetal acceleration of the stone
f = m * v^2 / r = 1 * 5^2 / .5
the force is in Newtons
a substance going into solution has no effect on the weight
the weight of the solution is the weight of the solvent plus the weight of the solute
.1M * (45.5 / 50)
the probability of NOT getting a particular glass on any visit is 4/5 or .8
the probability of NOT getting a particular glass on 15 visits is .8^15
the probability of getting a particular glass in 15 visits is 1 - .8^15
the probability of getting all 5 glasses in 15 visits is (1 - .8^15)^5
m * g * h
80.4 * g * 2630 * sin(19.4º)
the two particles experience the same force (the tension in the string)
since A has twice the mass of B, its acceleration will be half of B's
so A's final velocity will be half of B's
(1/2 * 2kg * v^2) + (1/2 * 1kg * (2v)^2) = 12J
2 v^2 + 4 v^2 = 24
v^2 = 4 ___ v = 2 ___ 2v = 4
because B's acceleration and final velocity are twice that of A, B travels twice the distance of A
A + 2A = .9m
A = .3m , B = .6m
the net work done on the car, by the driver, is ZERO
the force is applied internally to the moving reference frame of the car
this would be like sitting in a wagon and trying to move it by pushing on the inside -- no net work
velocity = acceleration * time
her acceleration is zero for the rest of the race, so her velocity stays constant
gravity provides a downward acceleration of 9.8 m/s^2
so the bungee cord is providing an upward acceleration of 1.4 m/s^2 (9.8 - 8.4)
the force is upward
with a magnitude of 65 kg * 1.4 m/s^2
the work stretching the spring equals the change in the gravitational potential energy
1/2 * k * x^2 = m * g * x
37 x^2 = 3.3 * 980 * x = 3234 x
x^2 - (3234/37)x = 0
x = 3234/37
push off from your backpack as hard and fast as you can, towards the shore
you and your backpack will gain equal amounts of momentum
you will slide to solid ground and your backpack will end up on the opposite shore
the velocity in the x-direction is constant
the penguin is accelerated in the y-direction by the wind
a = f / m = .45 / 5.7
v = a * t
the x-velocity and y-velocity add as vectors to give the net velocity
(vx)^2 + (vy)^2 = v^2
the rocket attains a velocity of
75.5 * 1.58 or 119.3 m/s
since it started from zero, the average velocity for the 1st part of the flight is 119.3/2 or 59.65 m/s
it runs out of fuel at a height of
1.58 * 59.65 or 94.24 m
in the 2nd part of the flight, the rocket is decelerated by gravity for
119.3 / 9.8 or 12.17 s
since the rocket is slowing back to zero (at max height), the average velocity is the same as during the 1st part of the flight
the height from fuel exhaustion to peak is 59.65 * 12.17 or 725.94 m
the max altitude is
94.24 m + 725.94 m or 820. m
p.e. = m * g * h
10.3 kj = 5.20 kg * 9.8 m/s^2 * h
10.3 k / (5.2 * 9.8) = h (in meters)
power = work / time
p = (1000 * m * g * h) / (30.0 min * 60 s/min)
p = (1000 * 196)j / 1800 s (watts)
the velocity changes by 9 m/s (27 - 18)
this takes approx. 2.6 s (9 / 3.5)
the average velocity is 22.5 m/s
___ (27 + 18) / 2
the distance traveled is velocity multiplied by time
t is the time for Tina to catch David
1/2 a t^2 = v t
1.45 t^2 = 24 t
1.45 t^2 - 24 t = 0
t = 24/1.45
distance = 24 * 24/1.45
speed = accel * t = 2.9 * 24/1.45
no
(15 + 14 + 13 + 12 + 11 + ...)
minus
(12 + 11 + 10 + ...)
the work is equal to the change in the (kinetic) energy of the truck
w = (1/2 m 25^2) - (1/2 m 13^2)
w = 1/2 * 8000 * (25^2 - 13^2)
your calculated v will be in m/s
the question asks for rpm
60 s in a min and circumference = 2πr
(60 v) / (2 π r)
f = m a
tension = (3.8 * 2.1) + (3.8 * g)
a Coulomb ≈ 6.24x10^18 electrons
find the number of moles in 96.5 kC (by multiplying)
this equals the moles of Ag produced
mass = moles * molar mass
.00001 - .0001
10^-5 - 10^-4
-9x10^-5 ___ -.00009
the momentum of the system stays constant ___ 94 * .49
forward throw
(94 - .27)x + (.27 * 15) = 94 * .49
backward throw
(94 - .27)x - (.27 * 15) = 94 * .49
there are three pairs of matching sides
two are L x W ___ 2 * 7 * 3
two are L x H ___ 2 * 7 * 9
two are W x H ___ 2 * 3 * 9
find the areas, add them together
multiply by the paper cost
with the plane starting from rest and a uniform acceleration, the average velocity is 20 m/s
so the time of acceleration is 184/20 or 9.2 s
the acceleration is (40 m/s) / 9.2 s
the bank angle provides the necessary centripetal force
m * v^2 / r = m * g * sin(θ) * cos(θ)
convert v to m/s, then solve for r
the component of gravitational acceleration parallel to the slope is
___ g sin(30º)
the force on the skier is
___ m g sin(30º)
w = 1/2 k x^2
where x is the distance stretched
the spring compresses until the spring force equals the applied force
14 N = x * 5.0×10^2 N/m
the net acceleration is
___ g sin(16.9º) - (4.1×103 N / 3.5 × 103
kg)
divide the speed at the bottom by the acceleration to get the time for the trip
the average speed is (0 + 4.2) / 2
speed times time is distance (the length of the driveway)
the .88 is okay, but the exponent is not
actually, there is supposed to be one digit to the left of the decimal point
8.8x10^-3
the exponents are subtracted when dividing
(1.23/1.4)x10^(-10 - -8) = .88x10^-2
___ = 8.8x10^-3
n and inQ are doubled
EAo and E have no change
Q is squared
10
p=2.30 per burger
the probability of at least one being defective equals
1 minus the probability that all three are good
1 - (5/8)^3 = .756 (approx)
A.) the height of the slope is
___ 500m * sin(24º)
GPE = m g h
b.) .2 m g h = 1/2 m v^2
.4 g h = v^2
h1 = -1/2 g t^2 + 100
h2 = -1/2 g t^2 + 50 t
the balls cross when h1 equals h2
looks like 2 sec
if you use the pk2 wouldnt you get a negative value for nah2po4?
Give up. Drop out of school
b. salt water is correct
prefered stock
I got -29.43m\s but that's not taking air resistance Into consideration.
18/25
259.11
9th = 1/4
10th = 1/3
11th = 1/6
1/4 + 1/3 + 1/6= 1/4+2/6+1/6
=1/4 + 3/6
=1/4 + 1/2 =3/4
300= 25% or 1/4
3/4= 3* 300= 900
IF xy=9 and vw =6, what is vx
A(-3,2),B(1,-2),(1,3)
the moon's mass is about 1/6 of earth, so the gravitational potential energy is also about 1/6
google "polynomial multiplier calculator"
use the easycalculation application
there are 6^3 ways to travel on the three days
walking on one day leaves 5^2 options for the other two
p = (3 * 5^2) / (6^3)
w = 4 d
(w - 5)(d - 5) = 175
(4 d - 5)(d - 5) = 175 ... 4 d^2 - 25 d - 150 = 0
use quadratic formula to find d
... then substitute back to find w
p(outside) = 14/29
p(not visible) = 1/29
probability of two independent events is the product of the individual probabilities
Reiny
following your pattern; if x^n is the largest term , then there are 2n+1 terms
the (increasing) term coefficients are one greater than their corresponding exponent
you're missing some terms/coefficients in the squaring of the smaller polynomial
the easycalculation application agrees with Steve
N = 1E6 (1 - .05)^t
area = π r^2 = π d^2 / 4
π is pi ... 3.14159...
c is the combined time
Shannon paints c/16, and Emily paints c/20
the two fractions add to 1 (the whole room)
c/16 + c/20 = 1 ... 5c + 4c = 80
speed^2 = 2^2 + 5^2
Θ is the angle downstream from directly across
... tan(Θ) = 2/5
there are 6^5 possible outcomes
6 of those have all the numbers the same
-7 < x < 4
looks good
the equation is ... x + 24 = 36
after the semicolon is a space to fill in the x-value of the solution
... x = _____ (12, in this case)
P = 5.00 mg * 1E-5 % = 5.00E-10 g
P atoms = (5.00E-10 / 31.0) * 6.02E23
√(9x^2 -24x +16) = 3x - 4
resolve the two vectors into x and y components
add the respective components
find the resultant vector