# physics-question 7

96,815 results

### Physics;Help!!!!!!

There is apparently no one online who can help with physics questions right now. Please check back later to see if a physics teacher has addressed your question. Multiple posts won't get faster answers. Thanks. =) The question is in the first question marked physics beside ...

### physics

Im doing physics 20 in correspondance this summer, and Im stuck on a question about Refraction... and Snell's law. The question is... A ray of light is incident upon a 60-60-60 degree prism, n=1.5. Then it shows a diagram , and it asks to find the angle of reflection.. and ...

### Physics

I'm understanding most of this physics, but here is one last question I would appreciate help on. Thank you! Okay, so the question involves a figure. A link to the question and the picture with it is below can be found by googling the question along with Holt physics. The link...

### Physics

I am reviewing for a test and I don't know how to attempt this question. Could someone please work through this problem and then have the general steps that I need to take to solve the question? Here is the question: A rocket expels gases at a rate of 1.30 x 10^3 kg/s with...

### Physics

For a question in physics... I was told to draw a graph of vertical displacement, y, versus time, t, in 2sec increments from 0 to 1.8. What was given to me was: v_yo_= +10m/s v_xo_= +5m/s a_y_ = -10m/s^2 So I used the formula: y=vo+1/2at^2 I drew the graph, and got a parabala...

### Physics

Physics teacher has this question for hw. 38. An electric powered model car starts from rest and moves in a straight-line for 4.0 s. The relationship between time and position is x^2+ 2 t^2 = 32, t in seconds and x in cm. Find the velocity at t= 1 s & t = 3 s. he gave us the ...

### 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 ...

### college physics

My previous question was marked science, but it's specifically a college physics question. Thanks.

### physics

Hi, can u help me in this question please my question is how to draw reflection of the image from the mirrior. Thank you.

PLEASE SOMEONE RESPOND TO MY QUESTION: Physics (12)! THIS QUESTION IS DRIVING ME NUTS!!! I DID THIS 7 DIFFERENT WAYS!!! I AM SO LOST! PLEASE! I NEED THIS QUESTION FOR TOMORROW!!!! P.S. thanks so much....very much appreciated!

### physics

please tell me f(x)=rho_1*g*A the solution of which question I cannot understand plz give the 3 to 4 words of question as a hint

### Physics

My question is how does metal corrosion affect a reed switch? This question is from my textbook. We are following cambridge igcse science.

### physics Classical Mechanics

Enjoy, How did you find the answer to question on the yoyo I got it wrong, and question number 2 on torque. Thanks.

### Physics

I really don't get why I am getting this question wrong? Please can you explain to me how to do this question step by step so that I can understand it please? :( i have been stuck on this question for quite a while now. Determine the stopping distances for an automobile with ...

### Physics

I really don't get why I am getting this question wrong? Please can you explain to me how to do this question step by step so that I can understand it please? :( i have been stuck on this question for quite a while now. Determine the stopping distances for an automobile with ...

### Physics

I really don't get why I am getting this question wrong? Please can you explain to me how to do this question step by step so that I can understand it please? :( i have been stuck on this question for quite a while now. Determine the stopping distances for an automobile with ...

### Physics

I really don't get why I am getting this question wrong? Please can you explain to me how to do this question step by step so that I can understand it please? :( i have been stuck on this question for quite a while now. Determine the stopping distances for an automobile with ...

### Math

Need help with one more question. Which best describes a statistical question? a. a question that contains numbers b. a question about numbers c. a question about designing an experiment d. a question about a population or sample. I was thinking it might be D. Thanks...

### Physics

I am reviewing for a test and I don't know how to attempt this question. Could someone please work through this problem and then have the general steps that I need to take to solve the question? Here is the question: A rocket expels gases at a rate of 1.30 x 10^3 kg/s with a ...

### Physics

I am reviewing for a test and I don't know how to attempt this question. Could someone please work through this problem and then have the general steps that I need to take to solve the question? Here is the question: A rocket expels gases at a rate of 1.30 x 10^3 kg/s with a ...

### Physics

I am reviewing for a test and I don't know how to attempt this question. Could someone please work through this problem and then have the general steps that I need to take to solve the question? Here is the question: A rocket expels gases at a rate of 1.30 x 10^3 kg/s with a ...

### Physics

Can someone please help me with this physics question? I have most parts of the question answered already. (i only need help with b and c). Thanks The motion of a body is described by the equation 3.50 sin (0.100ðt)where t is in s and y is in m. (a) Find the amplitude 3.50 m...

### Physics

I have 2 questions...one can someone please read my question posted around noon today called Lab for physics? Thanks..and secondly, I have to derive some equation. I am supposed to show a=gtantheta and find this from m (mass) L (length). The question also mentions the verical ...

### physics

Got a question that I'm not quite sure how to approach: "A force of 2500 N acting on the area of 120cm3 evokes a pressure of:" This is all the info given in the question.

DrBob222 please check my physics question posted at 8:55pm. The subject is drwl please check. I am not getting a response from drwl. Thanks! Mary DrWLS is not on right now. My physics is too poor to trust my answers. Bob Pursley is smarter than I am; he does physics, math, and...

### Question

Could someone please delete my previous question due to privacy issues? Posted by:Turner Date: Saturday, September 5,2015 at 9:00 pm Subject: AP Physics Thank you so much!

### general physics question

Whenever I read my science textbooks, they always say that "electrons were fired" or "stream of electrons were fired to the target" during an experiment my question is, how to they generate a stream of electrons to fire in a line?? sorry if this is a dumb question, i'd just ...

### chemistry

I need help with this question. the question. ask to complete the following relationship between units. question a.___g= 1Gg how would answer a question like this.

### stats

You took a 5-question multiple choice quiz with 4 choices for each question. If you guess at random on each question, what is the probability that you get at least one question correct?

### English

He asked me a question. He asked a question of me. He begged me a question. He begged a question of me. He inquired me a question. He inquired me of a question. (Are the pairs all correct and interchangable? Doe they have the same meaning?)

### public speaking

2. “To persuade my classmates that cheating in an exam is just as wrong as plagiarism” is a: A. question of fact. B. question of policy. C. question of value. D. question of guessing.

### Physics

I am in 8th Grade G/T Science, and I had a question in an online test I didn't understand: An object is traveling at 8.1 m/s. Over the course of 5.3 seconds, it accelerates at a rate of 2.8 m/s2. What is its final velocity (in m/s)? Can you please help me answer this question...

### algebra

Need some one check my homework. Evaluate 3p/q when p=2 and q=6. Answer:1 Use < > or = for __ to write a true sentence: 0.001 __ 0.0010 Answer:< Question 3 Evaluate -3/8 - 5/8. Answer:7 Question 4 Evaluate: 84 + (-99) + 44 - (-18) - 43 = Answer:4 Question 5 Multiply...

### Physics 11 steve or any physics teacher helpURGENT

A 30kg student pushes a 20kg box on a frictionless surface. If student accelerates at 0.80 m/s^2, what is acceleration of the box. My question is why does the box accelerate in opposite direction of the boy, and how does the frictionless surface affect this question?

### physics B

This is the first question on the 2003 ap physics b exam. I need help with part e. It shows a diagram of a pulley with two students. student A is on the ground with a mass of 70kg holding on to the pulley while student B is in the air with a mass of 60. Question: with what ...

CAN SOMEONE PLEASE HELP ME WITH MY QUESTION I AM REALLY STUCK!!!!! SOMEONE ANYONE!! I need some help, my brain hurts already just over analyzing this question! [_] [_]Thanks! [_]

### Physics

A speaker which produces a frequency of 312 Hz is moving away from an observer and towards a wall at 3 m/s when it is 30 degrees Celsius. What is the frequency of the sound that travels directly to the observer? What is the frequency of the sound that bounces off the wall and ...

### Physics

A rocketship, travelling away from earth with a speed of 0.8c, sends regular radio signals which are received on Earth every 45.2 min. According to the rocketship astronauts, how frequently are the signals being sent? I really need help. Its a basic question yet har for me. ...

### math - question

In a television game show, there are five questions to answer. Each question is worth twice as much as the previous question. If the last question was worth \$6400, what was the first question worth? is the answer 400

### physics

thanks for solving my question pasted on dated 18.02.2011 at 10.20.pm.2nd question. a wt lifter lifts a wt of one kg against force of gravity through a distance of .8 mtr. how much cals he will burnt from the food he had taken.

### physics question for damon (a clarification)

Hi Damon! You helped me out in this question yesterday (jiskha. com /display.cgi?id = 1395185605) and I was wondering why you added gravity when calculating the friction. Thanks for your help!

### Physics

Consider a car starting at rest at the beginning of a 250 m street. At time t = 2.0 s it is 20 m along the street. At time t = 4.0 s it is 80 m along the street. Find its average velocity in the: (a) First 2.0 s (b) First 4.0 s (c) Last 2.0 s My work: I have done 2 question a ...

### physics

im new i need help with a question but scared to ask here the question may some1 explain but don't tell the answer How do the principles of convection, conduction, and radiation explain how the water in the saucepan gets hot?

### To Desmond

Please use Post a New Question -- if you piggy-back a question on another student's question, it's unlikely to be answered. Please repost your question.

### Physics

if the unit of power is the watt (W), and P = Fd/t, show using the result of question (2) and the fact that distance (d) uses units of meters and time has units of seconds. *** question 2. If m represents mass in kg, v represents speed in m/s, and r represents radius in m, ...

### Physics

if the unit of power is the watt (W), and P = Fd/t, show using the result of question (2) and the fact that distance (d) uses units of meters and time has units of seconds. *** question 2. If m represents mass in kg, v represents speed in m/s, and r represents radius in m, ...

### Bob Pursley

Bob: Thank you for answering my Chemistry question. I apologize that it was on there twice. I accidentally posted again the same question instead of a different question. You answered the first question with precision. Thank you

### math

Original Question is: how many 1/2 miles are in 12 miles? write the division question 12 divided by 1/2= 24 what multiplication question could the model also answer? 12 x 2 =24 This is the one I didn't understand Write the question given as a multiplication question?

### English

I m doing an analysis question on a poem called Question by May Swenson. The question says: Describe the prosody of the poem and comment on the effect of the initial substitutions of the meter. I do not even know where to start with this question, if you could help me out please.

### Physics

Hi-I have a question-we're studying Newton's Laws and my question is: If I have a constant, non-zero force, how does the accleration change as the mass is changed. I think it changes proportionally-yes, or no but I'm not sure why except to say that's the law Thank you

### Physics

A 12 kg wagon is being pulled at an angle of 38degrees above horizontal. What force is applied to the wagon if it accelerates from rest to a speed of 2.2 m/s over a distance of 3.4 m? I not sure how to do this question. Is work involved for this question. I am completely stumped.

### physics dicussion question

is there any physics teachers available to help right now?

### math

I do not know how to answer this question. Would someone please help me with each of the four question below? Thank you. Question 1. Write the sample space for the outcomes of tossing three coins using H for heads and T for tails. Question 2. What is the probability for each ...

### Math

Determine whether the question is a statistical question. If it is a statistical question, identify the units for the answer. An antique collector wants to know the age of a particular chair in a shop. I do not feel that this is a statistical question. Am I correct on this?

### English

There are three teams in a classroom. 1. This question is for Team 1. 2. Only Team 2 can answer this question. 2-2. Only students in Team 2 can answer this question. (Do we have to put 'the' before 'students'?) 3. This one is for Team 3 students. 4. Team 1 students are allowed...

### Math

Determine whether the question is a statistical question. If it is a statistical question, identify the units for the answer How tall is Sam? I do not believe this is a statistical question. Am I correct?

### Physics

Can the following equation be used to solve the question? R = ρ L / A ; find L.. or is there another way? Question: A rectangular piece of gold is 2.2 cm long and 2.4 cm wide. How deep is the piece when it displays a resistance of R = 1.06 μω for a current that ...

### Physics

I posted this question earlier and I still don't get it So I got a question One 3.5-kg paint bucket is hanging by a massless cord from another 3.5-kg pain bucket, aslo hanging by a massless cord if the buckets are at rest, what is the tension in each cord? How do I do this is ...

### english

for my extended essay i need help reword a question. right now it sounds like a "book report" type question and i need it to a question where i can prove it. Here it the question: Has foot binding effected the culture of Chinese women throughout the ages?

### Math

Determine whether the question is a statistical question. If it is a statistical question, identify the units for the answer. How tall is Sam? This is not a statistical question. Am I correct?

### physics question

If you are asked to calculate the accleration due to gravity, is that not a trick question? We did an experiment similar to Galileo's (cart down a ramp and measure time, distance, acceleration, and at diferent inclinations)...but if asked to find the accleration due to gravity...

### Physics-Just a clarification

I have a question? What does hf = hi+Vivertical stand for? I haven't seen hf or hi or Vivertical yet in class-I just started a few weeks ago. Bob Pursley answered a question but I don't know what the abbreviations mean. Thank you for the direction-

### Physics

Physics Question Help please!!!? A 3.70 kg mass attached to a spring oscillates with a period of 0.375 s and an amplitude of 17.0 cm. (a) Find the total mechanical energy of the system

### Physics

This question has to do with kinematics graphing. I CAN NOT REPRODUCE THE GRAPH BUT hope that some help can be given to me with this question. The position versus time for a certain object moving along the x-axis. The object's initial position is -2 m. Find the instantaneous ...

### Spanish

In English the format for asking a question is Are you hungry?" with a question mark at the end. How is a Spanish question written differently? Isn't it to put a question mark at the beginning also?

### question?

can anyone help me with a physics question?

### english literature

What is the best way to structure and answer an essay with a question that has more than one question in a question

### Question

I need help understanding this question. It's for my project that I'm doing about careers. What are the employment possibilities in this field? I don't understand this question. Help is appreciated.

### Math

I might annoy you with this question but does any body know the question I posted below? This is my last question for today and I can't seem to figure it out.

### arithmetic progressions

how to know whether i should use formulaes in this question or that question becoz i colllapsed and put the formulae to another question

### Physics

Hello, I had a question for physics, and I tried it out, however, I got the wrong answer. The Question:If a rock takes 0.750s to hit the ground after being thrown down from a height of 4.80m, determine the rock's initial velocity. My Work : The formula- d=vi*t+1/2*a*t^2 The ...

### Physics

Hello, I had a question for physics, and I tried it out, however, I got the wrong answer. The Question:If a rock takes 0.750s to hit the ground after being thrown down from a height of 4.80m, determine the rock's initial velocity. My Work : The formula- d=vi*t+1/2*a*t^2 The ...

### English

true and false question are called Rejective Objective Dejective Subjective I think it's dejective Objective exams , subjective test contain More question Harder question Fewer question No good answer I think it's more question

### Physics 11 question pls urgent HELP!!!!!

The 1205 kg physics dragster is traveing ay 35km(easy) when it hits the gas and accelerates at 12.5 m/s^2 for 3.25s. What is change in momentum during this time?

### try

I guess my question that I posted does not come up I would like to answer your question, but I am unaware of your previous post. Please repost with the question. Thanks for asking.

### PHYSICS

HOW DO U COMPUTE g USING THE EQUATION g=GM/r^2 WHEN GIVEN THE QUESTION IN THIS FORM: "COMPUTE g AT A HEIGHT OF 4 RE ABOVE THE SURFACE OF EARTH" -basically how can i find the answer to a question given in this form

### physics

hi i have a physics question i don't understand here is the question A sample of blood is placed in a centrifuge of radius 15 cm. the mass of the corpuscle is 3.0*10^-16 kg, and the magnitude of the force required to make it settle out of the plasma is 4.0X10^-11 N. At how ...

### english

4. Shenzhen is a shoking place, like nowhere elseon earth that i have ever seen. (make a question with sentence " i have ever seen") 5. The new Hopewell Highway runs from Shenzhen to Guangzhou. (make a question with " where question") 6. So the traffic will be like in Bangkok...

### question

Quick question, If I post a question on here would you be able to delete it?

### AVID

this is about cornell note taking...i'm done taking notes but i'm having trouble with the summary and the question area...i don't know what to ask ....for the question part...so can u help? The question area...put in a question that you think the teacher might ask based on ...

### Social studies?

Please ignore my previous post. I prematurely hit the enter key. I've been watching this board all day, waiting for someone to answer my physics question (no one has yet. sigh.) I just have to say Ms. Sue is my hero. She consistently answers almost every student's questions, ...

### physics

thanks for the help earlier just got a question I'm taking AP Physics B this year does that mean next year I would Take AP Physics C??? I don't know if the material in C convers the same material plus the additional calculus material or what??? Could I take AP Calculus while ...

### Physics

It's called Mike's Online Biology: MOB University. Click physics Tutoring tab -> chapter 9 -> scroll down to question #13 with video below it. I used it as a guide.

### Physics

Light is shone from a liquid onto the air. The angle of incidence in the liquid is 45◦. The angle of refraction is measured to be 60◦ to the nearest degree. What is the refractive index of the liquid can anyone help please, I'm really stoked with this question and I'm not ...

### physics

hi thank you for your help: i have a question that deals with finding the direction and magnitude of the net magnetic force on a loop that is next to a wire (the loop is in the wire's magnetic field) how do i set up a question like this? do i have to integrate since the far ...

### Physics

1. Question: Consider two planets with uniform mass distributions. The mass density and the radius of planet 1 are p1 and R1, respectively, and those of planet 2 are p2 and R2. What is the ratio of their masses? Ans: M1/M2 = (p1/p2)(R1/R2)^3...I got this answer correct. I need...

### Physics-Newton's Law

Hi-I have a question-we're studying Newton's Laws and my question is: If I have a constant, non-zero force, how does the accleration change as the mass is changed. I think it changes proportionally-yes, or no but I'm not sure why except to say that's the law

### physics

Why does a narrow strip of paper, attatched to a vent that is blowing air at a steady rate, wave and flap? I havn't taken physics yet but I would like to know the answer this question.

### Physics

0.75 mol of argon gas is admitted to an evacuated 40 cm^{3} container at 40 C. The gas then undergoes an isochoric heating to a temperature of 500 C. Before I forgot to write the question...so the question is What is the final pressure of the gas? * physics - drwls, Friday, ...

### Multiple Choice

Physics 2. Which of the following is equivalent to one ampere? (Points : 1) 10 s/10 C 10 C/10 m 1.5 C/1.5 s 15 C/10 s Question 3.3. A stream of moving charges results in a current of 5.6 A. How long does 116 C of charge take to flow past a fixed point? (Points : 1) 2.0 s 5.6 s...

Find the interest to the nearest cent Question #1 Amount: \$5432 Annual Interest Rate: 6.2% Time: 3 years Question #2 \$4500 at 5.5% for 4 1/2 years Question #3 \$3680 at 6.75% for 2 1/4 years Question #4 5.5% for 1 3/4 years on \$2543 I'm sorry for so many but I just don't ...

### Literature

Hi, I just have a question about a confusing question to me in a poem that I have to answer... The poem is Annabel Lee. Here's the question they are asking: What was the effect of the repeated rhymes? I can't find an answer to the question?

### Physics

Someone posted the question below, stating that they knew the answer to part A but needed help with part B. Well even with the answer for A, I can't figure it out! Can you take a step back from the question below to show me the steps for solving part A? I've been working on ...

### english

I'm having trouble understanding how to answer this question about a reading I did, the question is "could Joe have anticipated John's approach?" could anyone possibly help me understand what this question means better.....thanks

### Math 1 question plz help ASAP

A bah of oranges weighs 5 1/4. How much does 1 1/2 weigh?(that's the question my question is do we add, subtract, multiply or divide plzzzzzzzzz help meeeeee im new to this website =)

What is the (a) maximum and (b) minimum total resistance value that can be obtained using three resistors whose values are 2.0 ohms, 4.0ohms and 6.0 ohms? The resistors can be used individually, in pairs, or all three at once. Is this a trick question? Is the answer 12 and 2?

### Science - - Second Try

I'll repost the question I posted about thirty five minutes ago. It's still unanswered. Hello. (= I can't find the answer to this question: What are the five major classes of Chordates? The following question is: Using the list made in the previous question, number the ...