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Tim
Questions and answers by visitors named
Tim
, page 5
Questions (992)
You are trying to photograph a bird sitting on a tree branch, but a tall hedge is blocking your view. However, as the drawing
1 answer
660 views
A small mirror is attached to a vertical wall, and it hangs a distance of 1.81 m above the floor. The mirror is facing due east,
1 answer
1,029 views
An object that is 32 cm in front of a convex mirror has an image located 17 cm behind the mirror. How far behind the mirror is
1 answer
361 views
A ray of sunlight is passing from diamond into crown glass; the angle of incidence is 36.00°. The indices of refraction for the
1 answer
989 views
When a converging lens is used in a camera (as in the first drawing), the film must be placed at a distance of 0.240 m from the
3 answers
2,009 views
Red light (n = 1.520) and violet light (n = 1.538) traveling in air are incident on a slab of crown glass. Both colors enter the
4 answers
671 views
lisa borrowed $8000.00 on an 8%, 60 day note after 15 days she paid $2000.00 on the note , on day 45 , she paid $1000.00 on the
2 answers
535 views
Using a ruler to draw a square with a perimeter of 48ft, and using the scale 6ft=1/2in (Hint: to find the length of each side,
2 answers
598 views
Add and convert 4-4/5 + 3-3/5=
4 answers
334 views
The amount of heat per second conducted from the blood capillaries beneath the skin to the surface is 250 J/s. The energy is
4 answers
4,045 views
A person is standing outdoors in the shade where the temperature is 22 °C. (a) What is the radiant energy absorbed per second
2 answers
1,156 views
A 17 foot ladder is placed against a wall. if the foot of the ladder is pushed toward the wall at 0.5 feet per second, how fast
2 answers
1,120 views
A company is manufacturing kayaks and can sell all that it manufactures. The revenue (in dollars) is given by R=750-(X^2/30)
2 answers
628 views
A company is manufacturing kayaks and can sell all that it manufactures. The revenue (in dollars) is given by R=750-(X^2/30)
2 answers
541 views
An ice chest at a beach party contains 12 cans of soda at 2.45 °C. Each can of soda has a mass of 0.35 kg and a specific heat
1 answer
602 views
Assume that the pressure is one atmosphere and determine the heat in joules required to produce 2.99 kg of water vapor at 100.0
1 answer
504 views
A lawnmower engine with an efficiency of 0.29 rejects 5500 J of heat every second. What is the magnitude of the work that the
1 answer
439 views
A Carnot refrigerator is used in a kitchen in which the temperature is kept at 301 K. This refrigerator uses 216 J of work to
3 answers
777 views
5 Couples, having dinner before the prom are to be seated at a circular table. In how many ways can this occur if the seating
1 answer
373 views
Two wires are identical, except that one is aluminum and one is copper. The aluminum wire has a resistance of 0.835. What is the
5 answers
3,090 views
A rope exerts a constant horizontal force of 203N pulling a 68-kg crate across the floor. The velocity of the crate is observed
2 answers
569 views
A rope exerts a constant horizontal force of 203N pulling a 68-kg crate across the floor. The velocity of the crate is observed
3 answers
1,258 views
Using the Compound Interest Table, calculate the compound amount after 5 years for an investment of $7,700 at 6% interest
3 answers
1,068 views
What would be the compound amount after 19 years on an investment of $42,000 with an 11% interest rate compounded annually?
4 answers
321 views
To determine the compound amount of an investment of $10,000 with an interest rate of 6% compounded monthly after 4 years
1 answer
363 views
What should I invest now to have $15,000 in 12 years at a compounded monthly rate of 1.6%?
3 answers
455 views
8/9 x 11/12=
9 answers
232 views
Membership cost 900 and 20 per round. Different club charges 1500 and 14 per round with 15 rounds free. After how many rounds
1 answer
330 views
Two south poles or two north poles are called...
2 answers
632 views
Can you use two straight cuts to break the figure below into three pieces
5 squares numbered 12345 5 123 4
1 answer
339 views
Use two straight cuts to break the figure below into three pieces and re arrange them to from a square
12345 are the squares 1
3 answers
451 views
The perimeter of a square is 12 cm greater than that of another square. It's area exceeds the area of the other by 39 cm^2. Find
1 answer
437 views
The perimeter of a square is 12cm greater than that of another square. It's area exceeds the area of the other by 39cm^2. Find
3 answers
472 views
Can you use 4 nines 9999 and normal operations to arrive at 20?
1 answer
362 views
Can you use 4 nines 9999 And normal operations to arrive at 100
2 answers
498 views
Can you use 4 fours 4444 and normal operations to arrive at 4?
1 answer
319 views
A bookshelf has 5 shelves its made from wood that is 30 mm thick and the shelves are evenly spaced
Bookshelf is 2100mm high 600mm
1 answer
484 views
9 is a very strange digit. Try to use four nines 9999 and normal operations plus minus multiply divide brackets etc, use 4 nines
1 answer
327 views
9 is a very strange digit. Try to use four nines 9999 and normal operations plus minus multiply divide brackets etc, use 4 nines
1 answer
406 views
why is it impossible to completely separate ethanol from water?
1 answer
275 views
why is it impossible to completely separate ethanol from water?
3 answers
483 views
I hate these
Y= (Square root of x) - 2 ________________________ (square root of x) + 2 Calculate dy/dx Please help, thank you
1 answer
295 views
6/ln[x]
find the derivative... im coming up with -6/x*(ln(x))^2 but it isn't accepting the answer what am i doing wrong?
3 answers
748 views
| t - 7 | + 3 > or = 4
1 answer
244 views
According to the permanent income hypothesis, households will tend to react to a temporary tax cut by?
A) assuming the new tax
2 answers
602 views
Hi this is a rebus, can you answer it?
KNEE LIGHT
3 answers
540 views
Hi this a rebus, can you answer it?
TEEXAMRM
2 answers
494 views
Hi this is a rebus question, can you answer it?
ECNALG
1 answer
336 views
Hi this is a rebus can you answer it?
ECNALG
3 answers
690 views
Ok so im looking for minimum avg power for a 38 kg boy to climb a 170 m building that takes 10.2 min include only work done
1 answer
401 views
Having trouble solving this...
Write the equation if a line that goes through (6,-1/2) and has an x-intercept of 5x-2y=-20 I
3 answers
333 views
Look at the following puzzles and try to decipher the well known sayings
1. Ban ana 2.nafish nafish 3.japmadean 4.issue issue
4 answers
887 views
Hi this is a mystery problem can you solve this?
The best forger of all time was indeed a most brilliant artist and a man
4 answers
382 views
Write two fractions that are equivalent to each fraction.
1. 2/5 2. 21/35
9 answers
307 views
When the servers arrived, Jack gave them the information on today's specials. He talked enthusiastically about the fresh
3 answers
2,108 views
Zach used to work at an independent record label. Negotiating could be exciting, but he was supposed to slant everything in the
2 answers
795 views
My son is in the fourth grade and is needing help with these math problems. Can someone please help him with these problems.
1.
3 answers
283 views
a dealer has 30 cars and trucks. If 2 more cars are delivered, the dealer will have 3 times as many cars as trucks. How many
3 answers
459 views
Daniel's watering can holds 6L of water when full. He fills his watering can 3 times from the bucket and then the bucket is
4 answers
586 views
A coin box contained some twenty-cent and fifty-cent coins in the ratio 4 : 3. After 20 twenty-cent coins were taken out to
3 answers
942 views
One pump fills a tank two times as fast as another pump. If the pumps work together they fill the tank in 18 minutes. How long
4 answers
2,713 views
An object at rest accelerates through a distance of 1.5 m at which point the instantaneous velocity of the object is 3.5m/s.
2 answers
932 views
A small washer is taped to a golf ball and the ball is hung from an electromagnet. When a trigger is activated the electromagnet
6 answers
2,781 views
An object begins at rest on a frictionless inclined plane at a linear distance of 2.0m from the base of the incline. If the
2 answers
1,232 views
Calculate the time it would take for an object to fall through a linear height equal to the objects starting height, h for a 20
1 answer
454 views
Make a predictive statement about the path dependence of accelerations due to gravity
1 answer
440 views
For a given initial projectile speed Vo, calculate what launch angle A gives the longest range R. Show your work, don't just
4 answers
2,707 views
For a given initial projectile speed, you observe that the projectile has a certain range R at a launch angle A = 30 degrees.
4 answers
3,002 views
Assume that you take data on the projectile range for a variety of different launch angles A at a fixed initial velocity Vo. You
5 answers
4,182 views
Evaluate the integral:
(cos(2-3x) - tan(5-3x))dx
3 answers
408 views
Hi, can someone please tell me whether or not I have choose the correct answer for these three questions.
1. According to
2 answers
528 views
the smallest regulation golf ball has a volume of 2.48 cubic inches. if the diameter of the ball were increased by 10%, or a
2 answers
517 views
I did some of them so can you help me with the rest.
Consider the piecewise functon f(x) = (4x^2-3)/(3x^2-15) x<(-2) square root
1 answer
416 views
Let P(t) be the percentage of Americans under the age of 18 at time t. The table gives values of this function in census years
1 answer
925 views
A baseball player rounds third base and is heading for home when he is signaled by the base coach to slide. The player has a
3 answers
906 views
A dynamics cart with a friction pad is placed at the top of an inclined track and released from rest. The cart accelerates down
3 answers
1,737 views
You have a total of $175 in $5 and $20 bills. The number of $5 bills you have is 3 more than 4 times the number of $20 bills.
3 answers
784 views
Find a parabola with equation
y = ax^2 + bx + c that has slope 6 at x = 1, slope −14 at x = −1, and passes through the point
6 answers
2,605 views
What is an equation for the line that passes through points(4,-4) and (8-4)?
1 answer
353 views
Find all points on the graph of the function
f(x) = 2 cos x + cos^2 x at which the tangent line is horizontal. (Use n as your
4 answers
7,047 views
Consider the gravitational potential, kinetic, and total mechanical energies of a cart moving down an inclined ramp. (Also, let
4 answers
3,259 views
Assume a spring has an un-stretched length Xo. Write an expression for the elastic potential energy of the spring in terms of
4 answers
1,164 views
Assume a spring has an un-stretched length Xo. Write an expression for the elastic potential energy of the spring in terms of
1 answer
826 views
Find equations of both the tangent lines to the ellipse x^2 + 4y^2 = 36 that pass through the point (12, 3).
smaller slope y=
6 answers
7,786 views
Use logarithmic differentiation to find the derivative of the function. show steps please!
y=(e^-xcos^2(x))/(x^2+x+1)
3 answers
540 views
Let r(x)= f(g(h(x))), where h(1)=4, g(4)=5, h'(1)=3 , g'(4)=5 and f'(5)=7. find r'(1).
4 answers
2,078 views
A 4700 kg vehicle on a level surface experiences a force applied due to the engine of 3700 N forward. If the force of friction
2 answers
589 views
Consider an isolated system consisting of two masses, each of which has a velocity vector in two dimensions. When these two
2 answers
642 views
Two pucks with similar masses collide with each other over a nearly frictionless surface. At the moment of collision, a sharp
2 answers
475 views
Verify the given linear approximation at
a = 0. Then determine the values of x for which the linear approximation is accurate to
4 answers
1,094 views
Consider the following.
f(x) = 8x (square root of (x − x^2)) (a) Use a graph to find the absolute maximum and minimum values of
2 answers
647 views
A stone is dropped into a lake, creating a circular ripple that travels outward at a speed of 40 cm/s. Find the rate at which
5 answers
17,164 views
If x^3 - y^3 =3 , use only implicit diff. to find d^2y/dx^2 . Express your answer in terms of x and y only and write is as a
1 answer
471 views
Evaluate: log base 5 379
2 answers
523 views
solve the following: 300e^.06x = 1500
1 answer
465 views
A "reference ring" with moment of inertia Ic rests on a solid disk torsion pendulum with a moment of inertia I0.
a) What is the
5 answers
2,826 views
sketch the graph of the following. Show all your work and include all the important points and asymptotes.
also find y' and y'' ?
2 answers
487 views
As a standard voltaic cell runs, it "discharges" and the cell potential decreases with time. Explain.
5 answers
4,505 views
Evaluate limit as x approaches 0 of:
csc^2(7x)tan(2x^2)
3 answers
529 views
Determine the behavior of limits
A. Limit as x approaches 1 of: (log x)/((x-1)^2) B. Limit as x approaches infinity of:
2 answers
528 views
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