Friday

April 18, 2014

April 18, 2014

Total # Posts: 52

**Fisher College**

What is 6y/7x^2 in terms of the LCD

**Math Algebra 1**

X | Y 1 | 1 2 | 3 3 | 6 4 | 10 7 | 28 8 | 55 n | ? Find expression that works for all steps using the variable x!?

**chemistry**

667.3298 mg = ? g

**Physics**

A 60 dB sound wave strikes an eardrum whose area is 4.1×10^−5 m^2. How much energy is absorbed by the eardrum per second? At this rate, how long would it take your eardrum to receive a total energy of 4.6 J?

**Physics**

Thank you, do you know how to get the other 2 answers?

**Physics**

A ski gondola is connected to the top of a hill by a steel cable of length 720 m and diameter 1.3 cm. As the gondola comes to the end of its run, it bumps into the terminal and sends a wave pulse along the cable. It is observed that it took 14 s for the pulse to return. What i...

**Physics**

oh... pi... thanks

**Physics**

what is Pl?

**Physics**

sorry, .11 m from equilibrium.

**Physics**

A 0.70 kg mass at the end of a spring vibrates 4.0 times per second with an amplitude of 0.15 m. Determine the velocity when it passes the equilibrium point. Determine the velocity when it is 0.11 from equilibrium. Determine the total energy of the system.

**Physics**

Intravenous infusions are often made under gravity. At what height should the bottle be placed so the liquid pressure is 700 mm-H2O?

**physics**

A car at the Indianapolis 500 accelerates uniformly from the pit area, going from rest to 260 km/h in a semicircular arc with a radius of 210 m. Determine the tangential and radial acceleration of the car when it is halfway through the turn, assuming constant tangential accele...

**physics**

The instruments attached to a weather balloon in the figure below have a mass(m) of 5.0 kg. The balloon is released and exerts an upward force(F) of 92 N on the instruments.

**physics**

A 44 m diameter wheel accelerates uniformly about its center from 110 rpm to 320 rpm in 3.9 s. Determine the radial component of the linear acceleration of a point on the edge of the wheel 1.0 s after it has started accelerating.

**physics**

A grinding wheel 0.40 m in diameter rotates at 2200 rpm. What is the acceleration of a point on the edge of the grinding wheel?

**physics**

A 44 m diameter wheel accelerates uniformly about its center from 110 rpm to 320 rpm in 3.9 s. Determine the radial component of the linear acceleration of a point on the edge of the wheel 1.0 s after it has started accelerating.

**physics**

A grinding wheel 0.40 m in diameter rotates at 2200 rpm. What is the acceleration of a point on the edge of the grinding wheel?

**Physics**

A block of mass = 2.20 kg slides down a 30.0 deg incline which is 3.60 m high. At the bottom, it strikes a block of mass = 7.00 kg which is at rest on a horizontal surface . (Assume a smooth transition at the bottom of the incline.) If the collision is elastic, and friction ca...

**Physics**

I'm not sure why I keep getting the wrong answer, but I do. Thanks for the help anyway :D

**Physics**

A 930 kg sports car collides into the rear end of a 2500 kg SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 2.6 m/s before stopping. The police officer, knowing that the coefficient of kinetic friction between tires and road i...

**Physics**

A 930 kg sports car collides into the rear end of a 2500 kg SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 2.6 m before stopping. The police officer, knowing that the coefficient of kinetic friction between tires and road is...

**Physics**

Olaf is standing on a sheet of ice that covers the football stadium parking lot in Buffalo, New York; there is negligible friction between his feet and the ice. A friend throws Olaf a ball of mass 0.400 kg that is traveling horizontally at 10.4 m/s. Olaf's mass is 67.8 kg....

**Physics**

Vi= sqrt(2*.8*3430*2.6)/930 Vi= 3.9

**Physics**

A 930 kg sports car collides into the rear end of a 2500 kg SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 2.6 m before stopping. The police officer, knowing that the coefficient of kinetic friction between tires and road is ...

**Physics**

Now assume that the pitcher in Part D throws a 0.145-kg baseball parallel to the ground with a speed of 32 m/s in the +x direction. The batter then hits the ball so it goes directly back to the pitcher along the same straight line. What is the ball's velocity just after le...

**Physics**

A 930 kg sports car collides into the rear end of a 2500 kg SUV stopped at a red light. The bumpers lock, the brakes are locked, and the two cars skid forward 2.6 m before stopping. The police officer, knowing that the coefficient of kinetic friction between tires and road is ...

**Physics**

A bullet of mass is fired horizontally with speed at a wooden block of mass resting on a frictionless table. The bullet hits the block and becomes completely embedded within it. After the bullet has come to rest within the block, the block, with the bullet in it, is traveling ...

**Physics**

A block of weight = 25.0 N sits on a frictionless inclined plane, which makes an angle = 34.0 with respect to the horizontal, as shown in the figure. A force of magnitude F= 14.0 N, applied parallel to the incline, is just sufficient to pull the block up the plane at constant ...

**Physics**

A spring-loaded toy gun is used to shoot a ball of mass m=1.5 kg straight up in the air. The spring has spring constant k=667 N/m. If the spring is compressed a distance of 25.0 centimeters from its equilibrium position and then released, the ball reaches a maximum height (mea...

**Physics**

How much work did the movers do (horizontally) pushing a 140-kg crate 10.1 m across a rough floor without acceleration, if the effective coefficient of friction was 0.60?

**Physics**

A 285-kg load is lifted 22.0 m vertically with an acceleration a=0.170 g by a single cable. Determine the tension in the cable. (N) Determine the net work done on the load. (J) Determine the work done by the cable on the load. Determine the work done by gravity on the load. De...

**Physics**

How much work is required to stop an electron (m= 9.11 * 10^-31 kg) which is moving with a speed of 1.80×10^6 m/s?

**Physics**

A block of weight = 25.0 N sits on a frictionless inclined plane, which makes an angle = 34.0 with respect to the horizontal, as shown in the figure. A force of magnitude = 14.0 N, applied parallel to the incline, is just sufficient to pull the block up the plane at constant s...

**Physics**

In the rope climb, a 68 athlete climbs a vertical distance of 9.0 in 13 . What minimum power output was used to accomplish this feat? In Watts

**Physics**

Consider the earth following its nearly circular orbit about the sun. The earth has mass 5.98*10^24 and the sun has mass 1.99*10^30. They are separated, center to center, by r=150 million k. What is the size of the gravitational force acting on the earth due to the sun?

**Physics**

The jet is moving at 500 m/s in a verticle loop, with a minimum radius of 4000 m. Calculate the 69-kg pilot's effective weight (the force with which the seat pushes up on him) at the bottom of the circle, and at the top of the circle (assume the same speed).

**Physics**

If the jet is moving at a speed of 1800 km/h at the lowest point of the loop, determine the minimum radius of the circle so that the centripetal acceleration at the lowest point does not exceed 6.4 g's The jet is moving in a verticle loop

**Physics**

If the jet is moving at a speed of 1800 at the lowest point of the loop, determine the minimum radius of the circle so that the centripetal acceleration at the lowest point does not exceed 6.4 's The jet is moving in a verticle loop

**Physics**

Thanks for the help, but it said it wasn't right.... I did 4.47*(6.38*10^3) Is that right?

**Physics**

What is the distance from the Earth's center to a point outside the Earth where the gravitational acceleration due to the Earth is 1/20 of its value at the Earth's surface?

**Physics**

ok... but I don't have the mass...

**Physics**

How large must the coefficient of static friction be between the tires and the road if a car is to round a level curve of radius 95 at a speed of 95 ? Express your answer using two significant figures.

**Math**

thanks, i understand the formula, i don't understand what goes where. Can you show me steps.

**Math**

Please find the slope and y-intercept of the line: y=-9/8x - -4/5

**programming**

I really need help on this I'm kind of confused on homework Frist i have to create a Currency Conversion Design Assingment-Hierachy Chart. I put Main Display Menu Get_Int_Value Convert Currency Display Results I also need to create a Currency Conversion Development Assignm...

**programming**

Okay i did the input output now i have to do design which is Main Module puEnd Main Module, Input Data Module,End input data Module, perform Caclulations Module, Output results Module, And End Output Results Module... Please if you can help me Thanks

**programming**

would that be process then input then output I for one have never done this before and its been hard trying to put it together i have read and read examples but its not clicking in my head for some reason not sure why??

**programming**

Thanks for the info... here is the problem that im having trouble with.... Design a program ( I can use a pseudocode to write the program) That models the worms behavior in the following scenario. a worm is moving toward an apple. Each time it moves the worm cuts the distance ...

**programming**

•Hi I really need help with with this I dont think I'm understanding how to do it maybe because i have never done this Design a program (you can use pseudocode to write your program) that models the worm’s behavior in the following scenario: A worm is moving towa...

**programming**

•Hi I really need help with with this I dont think I'm understanding how to do it maybe because i have never done this Design a program (you can use pseudocode to write your program) that models the worm’s behavior in the following scenario: A worm is moving towa...

**algebra 2 trig**

i need to find out how to solve this problem: 9x+2 7 ---------- + --- 3x^2-2x-8 3x^2+x-4

**social studies**

can u please help me unscramble this word MOODOK its some kind of snake

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