Sunday

April 20, 2014

April 20, 2014

Number of results: 240

**Phyics**

This is not phyics, whatever that is.
*Saturday, October 16, 2010 at 10:08pm by bobpursley*

**Phyics**

Thanks a lot!
*Wednesday, February 10, 2010 at 12:07am by ALan*

**phyics**

x=4 12.3(4)=?
*Friday, September 17, 2010 at 4:17pm by TutorCat*

**phyics**

.65496475
*Sunday, February 28, 2010 at 8:46am by edward*

**phyics**

460
*Wednesday, January 22, 2014 at 10:47pm by Anonymous*

**Phyics**

Thank You!!!!! I got it!!!!!
*Sunday, February 17, 2013 at 4:50pm by Amy*

**phyics**

.02 km/h
*Tuesday, April 6, 2010 at 9:55am by Kidda*

**phyics**

i dont think it 4
*Friday, September 17, 2010 at 4:17pm by Ashley*

**phyics**

whats the angle?
*Monday, November 1, 2010 at 11:04pm by Anonymous*

**phyics**

hi i really dont know
*Wednesday, February 22, 2012 at 12:12pm by Anonymous*

**phyics**

hi i really dont know
*Wednesday, February 22, 2012 at 12:12pm by Anonymous*

**Phyics**

21 (x) = 49(.3) x = .7 m
*Sunday, November 10, 2013 at 10:56pm by Damon*

**phyics**

h = 1.5 m? h = 0.5g*t^2 = 1.5 m. Solve for t.
*Monday, December 16, 2013 at 7:07pm by Henry *

**Phyics**

Thank You not sure how i did catch that lol.
*Wednesday, September 16, 2009 at 3:56pm by Joshua*

**Phyics**

How is the change in entory calculated?
*Wednesday, July 21, 2010 at 3:37pm by Oisin*

**phyics**

(1/2)^x=1/16 12.3x=?
*Friday, September 17, 2010 at 4:17pm by TutorCat*

**Phyics**

v(max) =Aω= 2πA/T
*Saturday, November 16, 2013 at 4:54pm by Elena*

**phyics**

convert 36cm/min to km/h
*Tuesday, April 6, 2010 at 9:55am by alisha*

**phyics**

just plug in 5 for t: r = (0.020 m/s^3)(5^3)i + (2.2 m/s)(5)j - (0.060 m/s^2)(5^2) k
*Thursday, September 16, 2010 at 10:55pm by TutorCat*

**PHYICS**

what about 13/8 0 31/15 P
*Saturday, September 18, 2010 at 11:51am by Ashley*

**Phyics help please varify the answer is correct**

thank you
*Friday, May 31, 2013 at 1:51pm by Adam*

**Phyics**

See answer in Related Questions
*Monday, July 8, 2013 at 7:12pm by Elena*

**Phyics**

I dont know what the second question is, you made a statement.
*Friday, October 5, 2007 at 8:59pm by bobpursley*

**phyics-universal gravity**

g is inversely prop to rad^2 g= 9.8/3.3^2
*Tuesday, November 3, 2009 at 9:10pm by bobpursley*

**PHYICS NEED HELP BAD!**

IT IS NOT COMING OUT RIGHT
*Wednesday, October 17, 2012 at 11:11am by Anthony *

**phyics help nedded**

So how can we state the appropriate answer to part (a)...?
*Friday, October 19, 2012 at 4:17am by some one *

**Phyics please help ms sue**

Thank you Elena, you are a big help.
*Friday, May 31, 2013 at 1:21pm by Adam*

**phyics**

Adjust for the fact that the compression is .538cm, not .538m
*Tuesday, November 5, 2013 at 1:10pm by Steve*

**Phyics **

vf^2=vi^2 + 2ad solve for a. Then note that a=mu*g
*Monday, February 28, 2011 at 2:42pm by bobpursley*

**PHYICS**

how do you get the vy by it self when trying to get tionhe speed in the y direct
*Wednesday, October 17, 2012 at 12:25pm by Anthony *

**Phyics Toughest question on earth**

Dude Can`t Understand Please Help
*Tuesday, June 4, 2013 at 1:42am by david*

**college phyics**

Your expression for x(t) is fouled up. Take the derivative of x to get velocity.
*Tuesday, January 19, 2010 at 7:23pm by bobpursley*

**phyics**

1/16 = (1/2)^4 so four half lives 4 * 12.3 as TutorCat said
*Friday, September 17, 2010 at 4:17pm by Damon*

**1th phyics**

use the equation v=v0+at substitute the numbers in to find t
*Sunday, September 26, 2010 at 6:22pm by Mat*

**Phyics**

It is it physical science and the equations nedd to be balanced.... it just how the format is on the computer
*Saturday, October 16, 2010 at 10:08pm by Tom*

**Phyics help**

It appears you are posting several questions under different names. Sorry.
*Saturday, April 9, 2011 at 8:27pm by bobpursley*

**phyics**

Calculate (in MeV ) the binding energy per nucleon for 40 Ca .
*Monday, December 5, 2011 at 12:38pm by paige*

**Phyics Toughest question on earth**

Try 16.13 seconds. Is it correct?
*Tuesday, June 4, 2013 at 1:42am by Gwen*

**algebra phyics word problem**

No, that is all wrong. I suggest you look again at the way I did it.
*Saturday, October 15, 2011 at 6:51pm by drwls*

**Phyics**

The internal energy change in a system that has absorbed 4 Kcals of heat and 1000 J of work is:
*Tuesday, March 12, 2013 at 11:36pm by Miko *

**phyics**

What is your question about this problem? I will be happy to critique your thinking. We are not in the habit of doing homework or tests for students.
*Wednesday, October 3, 2012 at 2:10pm by bobpursley*

**Phyics**

How far does a 5-kg block with an initial speed of 3 m/s slide up a frictionless 28° incline plane?
*Sunday, February 17, 2013 at 4:50pm by Amy*

**phyics**

For a given launch velocity, the smaller the angle the greater the hor. displacement Dx max occurs at 0 deg.
*Wednesday, February 22, 2012 at 12:12pm by Henry*

**1th phyics**

A car traveling at 7.5 m/s accelerates 3.4m/s2 to reach a speed of 15.0 m/s. How long does it take for this acceleration to occur?
*Sunday, September 26, 2010 at 6:22pm by Taylor*

**algebra phyics word problem**

I'm sorry, Marko, but I never took physics and my math skills stop about middle school level.
*Saturday, October 15, 2011 at 6:51pm by Ms. Sue*

**Phyics help**

you don't understand i don't get this unit and i'm failling this unit miserabely really need help
*Saturday, April 9, 2011 at 8:27pm by deepti*

**phyics**

The choroid and the auricle are similar because, one collects light and the other collects sound?
*Thursday, April 23, 2009 at 11:01am by Anonymous*

**phyics**

yes one collects light and the other collects sound, if your doing it from a Penn Foster class
*Thursday, April 23, 2009 at 11:01am by Kendra Cox*

**Phyics help please varify the answer is correct**

If RT ia the total R then Rt increases
*Friday, May 31, 2013 at 1:51pm by Elena*

**phyics**

For a given launch velocity, at which launch angle does the projectile undergo the maximum horizontal displacement?
*Wednesday, February 22, 2012 at 12:12pm by Lauren01*

**Phyics**

distancefalling=vi*t-4.9t^2 solve for t. distance falling is given, initial velocity is given.
*Wednesday, September 25, 2013 at 2:53am by bobpursley*

**Phyics help**

Show your work. I will be happy to critique your work and thinking.
*Saturday, April 9, 2011 at 8:27pm by bobpursley*

**phyics**

a SHO has a maximum speed of 5m/s. How fast will it be going when the potential energy is seven-ninths of the kinetic energy.
*Saturday, November 13, 2010 at 3:44pm by brandy*

**phyics**

calculate the gravitational force between a student with mass (60kg) and her desk (5kg) if she is sitting .2m from her desk
*Tuesday, February 22, 2011 at 2:31am by clayton*

**Phyics**

Well, Newtons gravitation law is force=GMm/d^2 but for you, mass m, your acceleration by falling in gravity must be Force=ma or a=F/m= GM/d^2
*Friday, October 5, 2007 at 8:59pm by bobpursley*

**phyics-universal gravity**

G(Me*ms)/(2*radearth)^2 or, since you know its mass, on earth the weight would be mg, but double the distance, and it is mg/4
*Tuesday, November 3, 2009 at 9:09pm by bobpursley*

**PHYICS **

A Football is kicked 66.6 meters in 5.39 seconds. What was the initial velocity it was kicked? magnitude and direction above horizontal
*Wednesday, October 17, 2012 at 12:25pm by Anthony *

**phyics**

An object in simple harmonic motion has an amplitude of 0.202 m and an oscillation period of 0.620 s. Determine the maximum speed of the motion
*Tuesday, November 12, 2013 at 10:54am by Joey*

**Phyics**

An object in simple harmonic motion has an amplitude of 0.202 m and an oscillation period of 0.620 s. Determine the maximum speed of the motion.
*Saturday, November 16, 2013 at 4:54pm by Corey*

**phyics-universal gravity**

A hypothetical planet has a radius 3.3 times that of Earth, but has the same mass. What is the acceleration due to gravity near its surface? (downward)
*Tuesday, November 3, 2009 at 9:10pm by Anonymous*

**PHYICS**

Ac = v^2/R new Ac = (3 v)^2/R = 9 v^2/R 9 times :)
*Saturday, February 15, 2014 at 6:42am by Damon*

**phyics**

An electron and a proton are placed at rest in a uniform electric field modulus equal to 520N / C. Calculate the speed of each particle of 48 ns after the latter has been released
*Wednesday, January 22, 2014 at 10:47pm by Anonymous*

**phyics**

An electron and a proton are placed at rest in a uniform electric field modulus equal to 520N / C. Calculate the speed of each particle of 48 ns after the latter has been released
*Wednesday, January 22, 2014 at 10:46pm by Anonymous*

**11th phyics**

An automobile with an initial speed of 4.56 m/s accelerates uniformly at the rate of 2.4 m/s2. Find the final speed of the car after 4.4 s. Answer in units of m/s
*Sunday, September 26, 2010 at 6:20pm by Taylor*

**PHYICS NEED HELP BAD!**

A football is kicked 66.6 meters. If it is in the air for 5.39 seconds, with what initial velocity was it kicked? magnitude and direction above horizontal
*Wednesday, October 17, 2012 at 11:11am by Anthony *

**PHYICS**

a turn table is turing at a rate of 45 rad/sec and comes to rest after 5 second.how many rotation does it make before coming to rest?
*Saturday, February 15, 2014 at 2:17am by Pawan*

**Phyics**

u=4m/s when constant speed, acceleration a=0 distance s=4.77 time t=? s=u*t+1/2*a*t^2 s=u*t because a=0 t=s/u=4.77/4 t=1.77 sec.
*Sunday, October 20, 2013 at 10:08pm by rosa*

**phyics**

If Sir George starts at 0, 1/2 (.273)t^2 = 94.3 - 1/2 (.280)t^2 t = 18.468 check: 46.55 + 47.75 = 94.30 The answer is in there somewhere :-)
*Monday, September 23, 2013 at 11:14pm by Steve*

**phyics**

Find the horizontal range of a baseball that leaves the bat at an angle of 63 degrees, with the horizontal with an initial velocity of 160 km/hr. discard air resistance
*Wednesday, December 14, 2011 at 7:19pm by Brittany*

**phyics**

find the acceleration if the velocity changes from: a) 2m/s to 4m/s in 4s b) 5m/s to 10m/s in 2s c) 100m/s to 120m/s in 5s d) 86m/s to 94m/s in 4s e) 21m/s to 35m/s in 18s thank you!
*Wednesday, September 19, 2012 at 1:11pm by nicky*

**phyics**

The figure shows a person whose weight is W = 500 N doing push-ups. Find the normal force exerted by the floor on (a) each hand and (b) each foot, assuming that the person holds this position.
*Friday, November 1, 2013 at 1:51pm by bobby*

**phyics**

The figure shows a person whose weight is W = 500 N doing push-ups. Find the normal force exerted by the floor on (a) each hand and (b) each foot, assuming that the person holds this position.
*Friday, November 1, 2013 at 1:56pm by bobby*

**Phyics help please varify the answer is correct **

A parallel circuit has value of RT = R1 // R2 // R3. If one resistor opens, RT RT increases?
*Friday, May 31, 2013 at 1:51pm by Adam*

**college phyics**

The position of an object changes with time according to the expression x(t) = 5t62 = 3t - 1. What is the position of the object when its velocity is 11 m/s?
*Tuesday, January 19, 2010 at 7:23pm by Mandy*

**Phyics**

A ray of light strikes a mirror at an angle of 26 degrees to the normal. What is the angle of reflection? Answer in units of degrees .
*Sunday, February 27, 2011 at 10:27pm by Maria*

**phyics**

Pick the radioactive isotope in each set. 23/11 20/9 Explain your choice. a)its atomic number is greater than 83 b)it has fewer n than p in the nucleus c)it is an odd-odd nuclide none of the above
*Friday, September 17, 2010 at 4:20pm by ashley*

**PHYICS**

Pick the radioactive isotope in each set 14/7 N OR 23/13 AL EXPLAIN A)its atomic number is greater than 83 B)it has fewer n than p in the nucleus C)it is an odd-odd nuclide none of the above
*Saturday, September 18, 2010 at 11:51am by Ashley*

**phyics**

You are installing a new spark plug in your car, and the manual specifies that it be tightened to a torque that has a magnitude of 65 N·m. Using the data in the figure, determine the magnitude F of the force that you must exert on the wrench.
*Friday, November 1, 2013 at 1:20pm by bobby*

**Phyics**

One of the concrete pillars that supports a house is 1.9 m tall and has a radius of 0.55 m. The density of concrete is about 2.2 x 103 kg/m3. Find the weight of this pillar in pounds (1 N = 0.2248 lb).
*Tuesday, November 12, 2013 at 1:30pm by Justin*

**Phyics**

velocity = acceleration * time her acceleration is zero for the rest of the race, so her velocity stays constant
*Tuesday, September 24, 2013 at 9:13pm by scott*

**phyics**

a child playing jacks bounces a super ball on tha sdewalk. The collision is elastic. Does each object have the same kinetic energy after the collision as it did before the collision?
*Wednesday, February 20, 2013 at 3:09pm by lynn*

**phyics-universal gravity**

Calculate the force of gravity on a spacecraft 6400 km (1 earth radii) above the Earth's surface if its mass is 1600 kg.
*Tuesday, November 3, 2009 at 9:09pm by DJ*

**phyics**

a 2kg mallet is dropped from a height of .6m onto a nail, driving it 3.5 cm into the wood. What is the average force exerted by the mallet on the nail? thanks
*Wednesday, January 19, 2011 at 1:25pm by jinny*

**ssct**

(phyics) question: calculate the final temperature of the water if 400grams of water at 80degress Celsius is poured into a 100grams pot at 30dgrees Celsius .
*Thursday, December 6, 2012 at 2:50am by arjet*

**phyics (correction)**

1. take the second derivative of r to find acceleration. 2. then divide 2.75 *10^5 N by 9.8m/s^2 to find how much the helicopter weighs in kg 3. multiply your result from 1 with your result from 2
*Thursday, September 16, 2010 at 10:55pm by TutorCat*

**Phyics**

Sue is swinging a yo-yo around her head. What happens to the size of the centripetal acceleration if the mass of the yo-yo is doubled without changing the period or length of the string?
*Wednesday, October 19, 2011 at 8:43pm by Eddie*

**algebra phyics word problem**

ok but this is in algebra mathword problem about physic
*Saturday, October 15, 2011 at 6:51pm by marko*

**Phyics please help ms sue **

A 9 v battery is connected across a series combination of 100 W, 35 W, and 55 W resistors. The current measured in the circuit is 100 mA. What can be wrong in this circuit?
*Friday, May 31, 2013 at 1:21pm by Anonymous*

**phyics**

When you see a traffic light turn red, you apply the brakes until you come to a stop. Suppose your initial speed was 12.9 m/s, and you come to rest in 35.0 m. How much time does this take? Assume constant deceleration.
*Wednesday, October 3, 2012 at 2:10pm by Anonymous*

**phyics**

A 0.20-kg object is attached to the end of an ideal horizontal spring that has a spring constant of 120 N/m. The simple harmonic motion that occurs has a maximum speed of 1.1 m/s. Determine the amplitude A of the motion.
*Tuesday, November 12, 2013 at 10:58am by Joey*

**phyics**

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
*Tuesday, October 15, 2013 at 8:21pm by scott*

**phyics**

A system does 3.7 × 104 J of work, and 8.5 × 104 J of heat flows into the system during the process. Find the change in the internal energy of the system.
*Sunday, March 30, 2014 at 10:36am by minka*

**Phyics**

Three moles of an ideal monatomic gas are at a temperature of 396 K. Then 2438 J of heat is added to the gas, and 897 J of work is done on it. What is the final temperature of the gas?
*Tuesday, November 19, 2013 at 11:22pm by Carl*

**phyics**

A ball is placed at the top of a hill of incline 60.0 degrees. The ball is allowed to roll for 12.0 seconds. How far will the ball roll during this period? Neglect friction.
*Saturday, December 18, 2010 at 4:06pm by lola*

**phyics**

You might say that, but the choria does no really "collect" light; it provides a way for the retina to receive blood for nourishment. The retina does the "collecting" of light. The auricle (or "pinna") collects and funnels sound into the ear.
*Thursday, April 23, 2009 at 11:01am by drwls*

**phyics**

A very long 1.75 cm diameter glass rod has one end ground and polished to a convex spherical surface that has a 7.30 cm radius. The glass material has an index of refraction 1.56.
*Wednesday, February 19, 2014 at 11:15pm by Anonymous*

**phyics**

Tritium (half-life = 12.3 y) is used to verify the age of expensive brandies. If an old brandy contains only the following fraction of the tritium present in new brandy, how long ago was it produced? 1/16
*Friday, September 17, 2010 at 4:17pm by ashley*

**phyics**

An object on a vertical spring oscillates up and down in simple harmonic motion with an angular frequency of 25.1 rad/s. Calculate the distance d by which the spring stretches from its unstrained length when the object is allowed to hang stationary from it.
*Tuesday, November 12, 2013 at 11:01am by Joey*

**phyics**

An object on a vertical spring oscillates up and down in simple harmonic motion with an angular frequency of 25.1 rad/s. Calculate the distance d by which the spring stretches from its unstrained length when the object is allowed to hang stationary from it.
*Tuesday, November 12, 2013 at 1:07pm by Joey*

**Phyics**

W=mg=ρVg= ρπr²hg= =2.2•10³•π•0.55²•1.9•9.8 = =38929 N=173173 lb
*Tuesday, November 12, 2013 at 1:30pm by Elena*