physics please HELP !
130,813 results, page 3

Physics(Please help)
A skier slides horizontally along the snow for a distance of 11.9 m before coming to rest. The coefficient of kinetic friction between the skier and the snow is 0.0458. Initially, how fast was the skier going? I do not know how to start this. Thank you. Physics(Please help)  ... 
Algebra
Please help! x+13 > 8 Solve the absolute value inequalities. Please, please , PLEASE! and thanks. 
physics
A batted baseball, which leaves the bat at an angle 〖30〗^0 above the horizontal, is caught by an outfielder 120m from the plate. a.) What is the initiated velocity of the ball? b.) How high did it rise? c.) How long was it in the air? my friend asked that ... 
physics
Hi, can someone please help with this question. A thin, uniform rod is bent into a square of side length a. If the total mass is M, find the moment of inertia about an axis through the center and perpendicular to the plane of the square. Use the parallelaxis theorem. Express ... 
physics
I am to measure the deflection by contructing a post and lintel system using the dowels I have (with different diameters, which will be my variables). I want to create a chart to present my results, but I don't know what I need to measure or what to look for. Please help me. ... 
Physics please help
The difference in potential between any two points in a field is the ___ required to move a unit of whatever is affected by the field between the two points. I need help with this. Could it be work? or energy? Please help 
Physics (ASAP PLEASE)
Please, help me answer this question. Two balls are moving in the same direction. Ball A has half the mass of ball B, and is moving at twice its speed. (a) Which ball has the greater momentum? (b) Which ball has greater kinetic energy? Thank you 
Physics  please, please help me!
A plane tries to head away from an airport at 500km/h[N], but finds that its true velocity is 450km/h[N35degreesE] due to headwinds. What is the velocity of the wind? I'm supposed to be using components, so for NS I used 500+450sin(55 which got me 868.6 then, for EW I did ... 
physics
please answer my question below 
Physics
Please respond to my previous post. 
physics
1/2 [vo + (v0 + at)]t ? please explain every step 
physicsplease help
how do you find beat frequency? 
physics
Eric can you show the work please 
Physics repost please check
Good morning. This is a repost. The system is telling me my calculations is incorrect. I thought a fresh pair of eyes would help. Please tell me what I am doing wrong. Suppose a monatomic ideal gas is contained within a vertical cylinder that is fitted with a movable piston. ... 
Physics..help please
A 715 N man stands in the middle of a frozen pond of radius 10.0 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome this difficulty, he throws his 1.2 kg physics textbook horizontally toward the north shore at a ... 
Math
How do you write at least 6 fractions from the below ingredients list that serves 4 people. 1 cup allpurpose flour 2 eggs 1/2 cup milk 1/2 cup water 1/4 teaspoon salt 2 tablespoons butter , melted How do I make these fractions? PLEASE PLEASE PLEASE PLEASE PLEASE! HELP ME! 
Physics I need help someone plz help out
An example of the neutron absorption reaction is . 1 0 n+10 5 B>7 3 Li+ 4 2 He The rest masses of each particle in atomic mass units (u) are 1 0 n= 1 u 10 5 B=10 u 7 3 Li =7 u 4 2 He= 4 u where 1u=1.66x10^27 kg. calculate Q Q= in MeV I have the same question please ... 
Physics Circular motion
A car starts from rest on a curve with a radius of 110m and accelerates at 1.2m/s^2. Through what angle will the car have traveled when the magnitude of its total acceleration is 2.1 m/s^2? I thought i got the answer which was 0.75 rad or 43 degrees but it says its the wrong ... 
words and reference
what do these 2 words mean please.? can you please help with the 2 following questions 1) can you tell me what  embodiment  means and please give an example. 2) Also can you please tell me what  intersubjectivity  means as before please give an example. Please be as ... 
Physics please help!!
A cart of mass M1 = 5.00 kg and initial speed = 3.00 m/s collides head on with a second cart of mass M2 = 3.00 kg at rest. Assuming that the collision is elastic, find the speed of M2 after the collision. I have tried the answer 5.0 m/s however it says it is wrong. Please help! 
physics
hey i have a some questions i am trying to solve for practice, because i have a test coming up. can you guys help me with them? i will post them Yes. Please show your work, however. Physics is best learned through practice, not by watching others solve problems. 
Physics(Please respond)
A golfer hits a shot to a green that is elevated 3.0 m above the point where the ball is struck. The ball leaves the club at a speed of 17.4 m/s at an angle of 35.0¢ª above the horizontal. It rises to its maximum height and then falls down to the green. Ignoring air ... 
Physics
A 34 g glass thermometer reads 21.6°C before it is placed in 135 mL of water. When the water and thermometer come to equilibrium, the thermometer reads 38.7°C. What was the original temperature of the water? I need help on this please could someone please help out.Thank you! 
socials
can u please explain the methaphor "slow dawns are caught in great wooden bowls" please explain with detail please please need fast 
Physics check
I just want somebody to check my answer on this problem please :) There is a box which weighs 1000 kg. There is an applied force acting upon it with a force of 20000 N (horizontally). The mu is 1.2. What is the acceleration (again, horizontally) of the object? I got 8.24 m/s^... 
English
{At a restaursant} For hear or to go? Is this for here or to go? It's for here, please. It is to go, please. (Are the expressions above all grammatical? What is the meaning of 'is to' in 'It is to go, please.'? Does it mean 'must'? That is, "It (the food) must go, please." Am ... 
Physics please clarify
A charge of +1q is fixed to one corner of a square, while a charge of 3q is fixed to the diagonally opposite corner. Expressed in terms of q, what charge should be fixed to the center of the square, so the potential is zero at each of the two empty corners? For Further ... 
Physics
I'm having trouble setting up/solving this physics problem? Can someone please help me? Thank you. A 4700 kg lunar lander is in orbit 45 km above the surface of the moon. It needs to move out to a 340kmhigh orbit in order to link up with the mother ship that will take the ... 
Physics please help
Two long straight aluminum wires, each of diameter 0.30mm, carry the same current but in opposite directions. They are suspended by 0.50m long strings...If the suspension strings make an angle of 3.0 degree with the vertical, what is the current in the wires? please help out I... 
Physics please help
Two long straight aluminum wires, each of diameter 0.30mm, carry the same current but in opposite directions. They are suspended by 0.50m long strings...If the suspension strings make an angle of 3.0 degree with the vertical, what is the current in the wires? please help out I... 
physics
A horizontal segment of pipe tapers from a cross sectional area of 50 cm2 to 0.5 cm2. The pressure at the larger end of the pipe is 1.26 105 Pa and the speed is 0.029 m/s. What is the pressure at the narrow end of the segment? Pa Please help! physics  drwls, Monday, April 9, ... 
Physics
A horizontal segment of pipe tapers from a cross sectional area of 50 cm2 to 0.5 cm2. The pressure at the larger end of the pipe is 1.26 105 Pa and the speed is 0.029 m/s. What is the pressure at the narrow end of the segment? Pa Please help! physics  drwls, Monday, April 9, ... 
Physics
A horizontal segment of pipe tapers from a cross sectional area of 50 cm2 to 0.5 cm2. The pressure at the larger end of the pipe is 1.26 105 Pa and the speed is 0.029 m/s. What is the pressure at the narrow end of the segment? Pa Please help! physics  drwls, Monday, April 9, ... 
Physics
You are standing on a fish pond wishing to catch a fish. How would you aim your fish gun in order to catch a fish which your eyes could see 20 cm below the surface of water ? will u aim higher , lower or exactly on the location of the fish as seen by your eyes ? find out what ... 
Physics Help Please!
If the price of electrical enegy is $0.10 per kilowatt *hour, find the cost of using electrical energy to heat the water in a 12.0m * 9.00m * 1.5m swimming pool from 15 degrees C to 27 degrees C. So the change in temperature is 285.15 , the volume is 162m^3, the specific heat ... 
posting again! please help!! physics
A skateboarder, starting from rest, rolls down a 14.0m ramp. When she arrives at the bottom of the ramp her speed is 7.40 m/s. (a) Determine the magnitude of her acceleration, assumed to be constant. (b) If the ramp is inclined at 20.5° with respect to the ground, what is ... 
Richard
Please answer "Physics  URGENT" below. 
Physics
Suppose vectors a&b if a x b=c. Show that c is perpendicular to a&b. Please help me. 
physics
thanks for the answer drwls. can you please explain to me, how it happened? 
physics
can someone please explain f1d1 = f2d2 
physics
can you please explain how the process of doping is conducted. 
Physics
How do you turn revolutions into radians? Please help! 
Physics/math
How do you convert 50.4 mi/h to m/s? 1 mi = 1609 m. Please explain it to me because I don't get it 
Physics(Please respond)
1) A cave explorer drops a stone from rest into a hole. The speed of sound is 343 m/s in air, and the sound of the stone striking the bottom is heard 1.33 s after the stone is dropped. How deep is the hole? I did 343 / 1.33. Is this correct? Physics(Please help)  drwls, ... 
Physics 11
In physics we did a lab experiment that involved finding the Heat capacity. the teacher told us that we wont get an exact answer. He wanted us to state the Source of Error. what is a source of Error? He said that it isn't a "human stupidity error" eg. Spilling some hot water, ... 
physics please help
How many grams of carbohydrate does a person of mass 75 kg need to metabolize to climb five flights of stairs (15 m height increase)? Each gram of carbohydrate provides 17.6 kJ of energy. Assume 10.0% efficiency—that is, 10.0% of the available chemical energy in the ... 
Physics Derivation URGENT!!
Can someone please show me how to derive this...I am going crazy I have tried everyhthing that I can think of with this equation..even the Range Equation and that doesnt work! So please! I am dying and aahaha! How does this work in terms of mass and L? I think L has to be ... 
college physics( hey bob)
I posted this quesiotn and got some help but still don't know how to do it. could i please get a little more assistance please. I don't know how to solove for the time of falling or sound without the variable height. eng physics a rock is dropped at sea cliff at the sound of ... 
PHYSICS IS THERE ANYONE WHO WUD HELP PLEASE
A 9.5kg watermelon and a 7.2kg pumpkin are attached to each other via a cord that wraps over a pulley, as shown. Friction is negligible everywhere in this system. Pumpkin is at left of angle n is 53 degrees and watermelon is on right and at 30 degrees calculate acceleration ... 
Physics (Please, it's a minor error)
A rectangular block has dimensions 1.5cm x 3.2cm x 3.9cm and a mass of 61g. Determine the density in SI units My taking on the question, Mass= 0.061kg Volume= 0.1872m Density=0.061kg/0.1872m=0.3258547kgm^3 Can someone please tell me where I'm going wrong? 
Physics
An arrow is shot straight up from the edge of a cliff with an initial velocity of 50 ft/s. Answer the following questions using English units. The acceleration due to gravity has a magnitude of 32.2 ft/s. A. Find the time to reach the highest point. (please use step by step ... 
Physics
A 492g oscillator has a speed of 99.5 cm/s when its displacement is 3.60 cm and 72.5 cm/s when its displacement is 5.10 cm. What is the oscillator's maximum speed? I'm suck with this problem, can someone please go through it with me step by step, please and thanks 
PLEASE
ANYONE PLEASE REPLY MY OTHER POST (SCIENCE 7R: LAB QUESTIONS) IS MY ANSWER IS CORRECT ON #13????? PLEASE!!!!!!!!!!!!!!!!!!!!! PLEASE!!!!!!!!  Laruen , Thursday, December 1, 2011 at 6:33pm Chloroplast are used for food making (photosynthesis). That is only found in a plant ... 
Physics repost please check
A glass bottle of soda is sealed with a screw cap. The absolute pressure of the carbon dioxide inside the bottle is 1.80 x10^5pa. Assuming that the top and bottom surfaces of the cap each have an area of .0004M^2, obtain the magnitude of the force that the screw thread exerts ... 
gemma
re s103 please could you help me on that question about methonal please please help im running out of time What question? Do you mean methanol? Please post your questions with the subject appropriately labeled, and not addressed to one person. 
Physics
I'm not sure how to calculate this question help me! (Grade 11 Physics) it's sound intensity... Show me how to do it please! (textbook says answer is 3.5 m) At close proximity, rustling leaves have a sound intensity of about 1.2 x 10^11 W/m squared. At what distance is the ... 
Physics repost
Suppose you wish to make a solenoid whose selfinductance is 1.2 mH. The inductor is to have a crosssectional area of 1.2 103 m2 and a length of 0.048 m. How many turns of wire are needed? Can you please clarify this for me. When I first post it my reponse was: # turns= # of... 
PhysicsSomeone please recheck
Bob Pursley rechecked my question and it was correct if you scan down but he didn't direct me where to find direction of magnetic force on plane and do the pilots have to make corrections to make up for the difference? I'd appreciate any help with that, if possible Thank you ... 
Physics
What is the Michelson and Morley experiment? Please don't give me Wikipedia 
physics
Could you please help me: Does plasma have a definite shape or volume? 
Quick Question
Who is the founder of Quantum Physics? Please help. Urgent. 
physics
1.calculate the commutators a/ [x^2,p^2] b/ [a,a^+n] I don't know how to solve it. Please help. I really appreciate. 
Physics
Define the term "complementary colours"?PLEASE GUYZ 
Physics
How many rpm's will a 2'' Nd45 sphere do spinning at 340.29 m/s. Please help me!! =( 
Physics
How many rpm's will a 2'' Nd45 sphere do spinning at 340.29 m/s. Please help me!! =( 
Physics
If the angle decreases what will happen to the tension? Please explain why. 
Physics
Can you please help with the following: x^2+2x35=0 I can't remember how to get the different possibilities. Appreciate help, thanks 
Physics
could you explain friction in a very easy term please 
physics
isolate for t s = ut + 1/2at^2 please show all ur steps 
Physics
Describe a vibration that is not periodic. I'm not sure how to answer this! Please help?! 
As physics
From the list of compounds below identify the molecules (find out the no. of molecules): 1) Propanone C3H6O Mr:58 2) Chromium Trioxide Cr2O3 Mr: 152 3) Rubidium Carbonate Rb2CO3 Mr: 231 4) Neon Ne Mr:20.2 5) Nitrophenol C6H5NO3 Mr: 139 6) Dinitrogentetraoxide N2O4 Mr:92 Please... 
Physics
I am in need of some basic tools in which to become better prepared to excel in my "Conceptual Physics" college course. I am a retired veteran of the Army and have not been in school for 25 years. Some reference charts for Trigonometry, basic glossary for any terminology, ... 
English
How would you like your coffee? 1. Black, please. 2. With only cream, please. 3. Cream and sugar, please. 4. With cream and sugar, please. 5. Sugar, please. 6. With only sugar, please. (Which answers are right? Do we have to use 'with' or not? Thank you for your help.) 
Physics websites
I just want to ask if there's a website in physics that you don't have to do the experiment on your own and you can just do it in the computer and study it and answer the question to that experiment/lab. I'm really having problems with my experiments and I don't have enough ... 
physics
An object is released from rest on a planet that has no atmosphere. The object falls freely for 5.02 m in the ﬁrst second. What is the magnitude of the acceleration due to gravity on the planet? Answer in units of m/s can someone help me please? i tried doing this 5.... 
Physics please help me out! thank you
If a galaxy is traveling away from us at 2.0% of the speed of light, roughly how far away is it? t= light years I got 2.4x10^8 light years but its wrong please help me out...thank you 
Physics  please, I really need help
a car attempts to stop and slides 25.5m while accelerating at 4m/s^2. The car's initial velocity was 20m/s. Find the time the slide took. Note that the final velocity is not known and that you need a quadratic solution. I know the quadratic formula, but I'm not sure how to ... 
PHYSICS HELP PLEASE !!!!!
A 21 kg object is placed on an incline with friction. The incline is raised slowly from zero degrees and at 60.71 degrees, the object begins to slide down the incline. What is the coefficient of static friction? Be as accurate as possible with your answer and be sure to enter ... 
PHYSICS HELP PLEASE !!!!!
A 21 kg object is placed on an incline with friction. The incline is raised slowly from zero degrees and at 60.71 degrees, the object begins to slide down the incline. What is the coefficient of static friction? Be as accurate as possible with your answer and be sure to enter ... 
Physics please help
While visiting Planet Physics, you toss a rock straight up at 13.6 m/s and catch it 3.50 s later. While you visit the surface, your cruise ship orbits at an altitude equal to the planet's radius every 340.0 minutes. What is the radius (in m) of the planet? What is the mass (in... 
Physics help please!
While visiting Planet Physics, you toss a rock straight up at 13.6 m/s and catch it 3.50 s later. While you visit the surface, your cruise ship orbits at an altitude equal to the planet's radius every 340.0 minutes. What is the radius (in m) of the planet? What is the mass (in... 
Maths
I have a test tomorrow and I really don't get this, please help me. "Use transformations and the zeros of the quadratic function f(x)=(x6)(x+4) to determine the zeros of each of the following functions a) y=2f(x) b) y=f(2x) c) y=f(0.5x)" I am so lost, I don't get what it ... 
As physics
The table below shows how the braking distance x for a car depends on its initial speed u u / ms1 5.0 10 20 4 x / m 2.0 8.0 32 128 the reaction time of a driver is 0.60s. Calculate the sopping distance of the car when u= 30ms1. The mark scheme says: Thinking distance= 30 X 0... 
letter
How can I write a feel better letter to Miley Cyrus? please help and give me so examples please help HOPE YOU FEEL BETTER [DateDear Miley cyrus I was quite upset to hear that you are feeling ill. However, I am every certain about you and i hope you will feel better in no time... 
physics
245kg=????ug I do not know how to change this to ug so if anyone could please show me how I would really appreciate it. 
PhysicsRutherford
Can you please give me a brief explanation of Rutherfords experiment? 
physics
Please show me how to derive the relativist mass formula: m = m0 / sqrt(1  v^2/c^2)? 
science physics
describewhat is an importance of microscope to mankind it's urgent please help? 
PHYSICS !!!!!!!!!!!!!!!!!!!!!!!!!!!!
a wave has a frequency of 2 Hz. find its period ? please show work..... 
Physics(Please Help!!)
how do you solve the following equation: 77.18 kg* 9.81* 5.83 divided by 4.37 and what does the asterisk stand for 
physics help please
What are the smallamplitude period and frequency of a 10.0 m long pendulum? 
Physics 30
Vectors A) 3.5 cm North B) 4.2 cm West Algebraically subtract B from A(BA) Whaaaa? Please help 
physics help please
A dancer completes 3.4 revolutions in a pirouette. What is her angular displacement? 
physics please help
What effect does the magnetic field have on the speed of the particle? 
Physics HW Help, Please
What is the energy required to accelerate a 1600 kg car from rest to 33 m/s? 
physics
an electron (m= 9.11 x 10^31 kg) and a proton (m+ 1.6 x 10^27 kg) are separated by 1.0 x 10^10 m. what is the gravitation force between them? help please! 
Physics
How can we find the resultant force if the mass and SPEED are given?? Help me please!! 
Physics
What is the momentum of a wavelength= 0.015nm Xray photon? p= in kg*m/s Please help I am confused. Thank you. 
Physics, Help me please,
What is the potential difference between Points A and B? E=100N/C AB=.2M degrees of 30 
physics please need help
If the period of an AC sine wave is 180 ms, the frequency is