# Math/Physics

206,551 results, page 93

### COMM/215

I would like to know if i have used properly structured sentences for the following: 49. To succeed in the new economy, workers will have to learn throughout their careers adapt to changing circumstances, and self-motivate when needed. 50. Some students hate math; some ...

### Math

I am stuck on a couple of math problems. I need help on the following numerical patterns. 5,7,11,17,25,?,47,61 80,40,20,?,5,5/2 It looks like you add two to each increment. For example, 5 + 2 = 7. 7+4=11 11+6=17 17+8=25 25+10=35 etc. For #2, I think each is halved. 80/2=40 40/...

### Math 8 -HELP! (PLZ!)

Is a a GOOD, RESOURCEFUL, UNDERSTANDABLY website for GRADE 8 MATH (NYS) that explains about slope intercept form. Please because I really don't understand it.

### math

i have a question in math (( distance between two points )) A quardilateral has vertices P(3,5), Q(-4,3), R(-3,-2), and S(5,-4). find the lengths of the diagonals,to the nearest tenth . please in detales .. thank u

### math

have a question in math (( distance between two points )) the coordinate of the diameter of a circle are (6,4) and (-2,0) find the length of the radius of the crcle. please in detales .. thank u

### math

have a question in math (( distance between two points )) the coordinate of the diameter of a circle are (6,4) and (-2,0) find the length of the radius of the crcle. please in detales .. thank u

### math cont.

i forgot one of the questions to the math question i just asked. calculate your yearly salary after six years as a veterinary tech.

### Math-Ms. Sue or Bob

Can either one of you help me with the math problems I asked? I really need help and do not understand how I would calculate the sample statistic and parameter population....

### Math

A cylindrical tin can has a radius of 4.5cm and a height of 5 cm (a)What is the surface area of the can (b)What is its volume? (c)What is the cans capacity could somebody please answer this question so i can get past with math

### math

The aera of rectangle MATH is 30 sq cm and each side-length is a counting number of cm. H is the midpoint of TO. The area of square ECHO is between 5 sq cm and 24 sq cm. Find the perimeter of the entire fiure in cm.

### math

How does functions in math relate to what you put into it is what you get out of it? Can you explain for me? i'm thinking it doesn't really? one example if you can like in sports or goverment? Don't know.

### math evaluation

So how am I suppose to Evaluate the expression and put it in simplest form? It's 7th grade math. The question I need help on is: -8/3 + 1/4. If u comment and show me how u got an anwser THANKS!!!!!

### Math

I need help on my math the question is make up a set of at least 12 numbers that have the following landmarks with maximum:8 range:6 mode:6 median:5 can you help me solve this equation

### Math

A teacher tallies up the grades on a math test in a class of 34 students, the results are A1, B11, C16, D3, F1. What is the empirical probability of a student getting a C? Express as a fraction.

### math help

Hi and good afternoon to everyone who is reading this i need help with my math if any of you guys know i site where i can learn fractions better that would be great PS. plz dont be coolmath

### math unit 7 test

Can the figure below tesselate a plane? Explain your answer. The shape is an arch (like a rainbow) Thanks! will fail math bc this problem why is this happening

### statistics

Lilly collects data on a sample of 40 high school students to evaluate whether the proportion of female high school students who take advanced math courses in high school varies depending upon whether they have been raised primarily by their father or by both their mother and ...

### Math

Problem 3) Lilly collects data on a sample of 40 high school students to evaluate whether the proportion of female high school students who take advanced math courses in high school varies depending upon whether they have been raised primarily by their father or by both their ...

### Law/421

Sam is a high school math teacher. And, Becky is a student in his math class. During parent-teacher conferences, "Teacher Sam" tries to intimidate Becky's parents by telling them: "I'll teach your daughter math during class if you give me \$1000." Is this a contract? Why or why...

### Physics

Two forces, F1 and F2, act on the 5.00 kg block shown in the drawing. The magnitudes of the forces are F1 = 69.0 N and F2 = 24.5 N. What is the horizontal acceleration (magnitude and direction) of the block? F1 is pointing at the top left corner of the box forming a 65 degree ...

### Physics

1) A physics book is moved once around the perimeter of a table of dimensions 1 m by 3 m. What is the distance traveled? 2) A window washer drops a brush from a scaf- fold on a tall office building. What is the speed of the falling brush after 2.7 s? (Neglect drag forces.) The...

### PHYSICS

a 60 km/h wind is blowing in a direction 30 degrees north of east. a. what is the component of the velocity oriented to the east? b. what is the component of the velocity oriented to the north? The component east is 60cos30. For both a and b, draw a diagram with a horizontal ...

### Physics

A planet has two satellite moons. Moon X has an orbital period of 2.13 days. Moon Y has an orbital period of about 3.53 days. Both moons have nearly circular orbits. Use Kepler's third law to find the distance of each satellite from the planet's center. The planet's mass is 2....

### math

In a local school 34 students are enrolled in a math class, 85 are enrolled in an english class, 58 are enrolled in an art class, and 54 are enrolled in a history class. Construct a pie chart with this data. What is the central angle of the slice representing students enrolled...

### Physics to Elena

Estimate the total binding energy for copper. 550 MeV Estimate the energy, in joules, needed to break a 3.0g copper penny into its constituent nucleons. E= in Joules Please help me out I got 1st part I need the Energy in joules am confused please help me out...thanks Physics...

### Physics sorry for reposting but I really need help

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 ...

### math

Use the following missing pieces to complete the runaway math puzzle. 2 6 6 0 1 8 0 5 Rewrite the equations from the runaway math puzzle. 1. __ - __ = ___ + ___ 2. 1 4 - ___ = ___+ 5 3. ___- ____ = ___ + ___ 4. 8 + ___ = 1 5 - 1 figure it out thank you 1.8-2=6+0 2.14-8=1+5 3.6...

### Physics

What is the resultant of two displacement vectors having the same direction? a. The resultant is the sum of the two displacements having the same direction as the original vectors. b. The resultant is the difference of the two displacements having the same direction as the ...

### physics

The physics of satellite motion around Jupiter. A satellite of mass 2.00 x 104 kg is placed in orbit 6.00 x 105 m above the surface of Jupiter. Please refer to the data table for planetary motion included in this lesson. a) Determine the force of gravitational attraction ...

### Math

2x4²(4 squared) that is the math problem i cant figure out if 4² means 4x4 or if it measns 4x4x4x4 please help its the sendond day of grade 9 ,, i don't wanna look dum

### Math

2x4²(4 squared) that is the math problem i cant figure out if 4² means 4x4 or if it measns 4x4x4x4 please help its the sendond day of grade 9 ,, i don't wanna look dum

### MATH ??

Well I was given this in math here goes. In what year of our modern calender go Christmas and new years day fall on different days of the week? I just don't know this

### math

Has the content in this course allowed you to think of math as a useful tool? If so, how? What concepts investigated in this course can apply to your personal and professional life? In what ways did you use MyMathLab® for extra support?

### math

i need help with this geometry prblem my math book is online on this site: w w w . k e y m a t h . com / D G 3 the class passcode is: 1574-4c524 The chapter is 0 Lesson 0.2 pg. 9 problem number 6 URGENT !!!

In 5 min, Peter completed 2 math problems. Yvonne says he did 3/5 of a problem each minute. Is she correct? Explain. Sorry I really didn't get my math homework.

### math

mark recently completed a math course in which he took three tests. his scores were 80,75,85 each time out of 100 points. What score represents marks total achievement in the course?

### Math

My math homework question stated : Jaske completed a marathon race in 3 hours and 12 minutes. Write Jakes running time as a decimal. Am I correct. Thanks Answer 3.12

### math

17.Given that 3•2 = 9, 2•6 = 64, 1•7 = 1 and 4•4 = 256. What is the value of 10•5? A)50 B)100 000 C)5000 D)5 plz explain how you get this answer i am studying the sample questions for the math olympics tommorow so i need to know what they will be like.

### Math

I have 6 thousands,12 tens, 9 hundreds, 10 ones and 3 tenths. What number am I? This is a question on my 3rd grade daughters math homework and I'm completely confused. I think it may be 7030.03???

### physics

Biophysics strikes back The Biophysics students are having their usual Saturday night biophysics party performing physics experiments at a classmate’s home. This Saturday it is in an apartment building and you notice a managemnt student (MS) passed out in the stairwell. The ...

### physics - drwls?

The flywheel of a steam engine runs with a constant angular speed of 250 rev/min. When steam is shut off, the friction of the bearings stops the wheel in 2.1 h. At the instant the flywheel is turning at 75 rev/min, what is the tangential component of the linear acceleration of...

### Physics .. hard problem

An overly eager physics student wants to confirm that the acceleration of gravity is ag=9.8 m/s^2. To check this, the student steps off the roof of the Sears Tower (height at the sky deck 427m). The rocketeer (who arrived five seconds after the student stepped off) uses a ...

### physics

i need help with this one! A 100KHz oscillator that's followed by a doubler and two triplers will produce an output of frequency.... a.) 180 kHz b.) 500 " c.) 800 " d.) 1.8 "

### physics

what are the merits and drawbacks of using a person's foot as a standard? keep in mind that it is advantagous that fundamental standards be accessible, invariable, indestructible, and reproducible.

### physics word problem

A 1000-kg car moving at 10 m/s brakes to a stop in 5 s. The average braking force is? On this question I asked my teacher I am suppose to get 2000 N and I don't get how to get it.

### physics help

A 1000-kg car moving at 10 m/s brakes to a stop in 5 s. The average braking force is? when i work this out with the formula that you gave me, i get 2525 instead of 2000 N

### Physics

In terms of Ohms Law (V=IR), when plotting a graph of V against I, is it safe to say that the line passes through the origin, even though 0/0 does not exist?

I don't understand these questions. Give two examples of common force fields? How is the magnitude of an electric field defined? -I got that it is its strength

in what position can a current-carrying loop of wire be located in a magnetic field so that it doesn't tend to rotate? -I think it would be perpendicular

### Physics

What is the length of a simple pendulum that marks seconds by completing a full swing from left to right and then back again every 2.0s? explain plz

### Physics

I was just wondering, since cathode ray tubes arent being made, are the only types of TVs available the plasma and the LCD?

### Physics

A wagon was used to move a 90 lb rock 120 yds. It took 40 sec and 70 lbs of force. Can someone help me solve for efficiency and horsepower????? PLEASE :)

### physics

A 1,5000kg car starting from rest is accelerated by a force of 2,oooN during the first 15seconds of its motion. Find the speed at the end of that's time

### physics

How much work must be done to roll a metal safe, mass 116 kg, a distance of 15.0 m across a level floor? The coeffecient of friction is 0.050.

### Physics

Why does the blood of deep sea divers look greenish-black in underwater photographs taken with natural light, but red when flashbulbs are used?

### Physics

When a solar flare erupts on the surface of the sun, how many minutes after it occurs does its light show up in an astronomer's telescope on earth? I am totally confused..help!

### physics

1.2g projectil e shot horiz. at a speed of 105m/s off a 124m high cliff. a) determine time taken by the projectile to return to the ground..

### physics

A stone is thrown downward into a well with an initial speed of 5.00 m/s. The sound of splash is heard 1.50 s later. Find the depth of the well if the air temperature is 15.0 ˚C?

### physics

A stone is rotated steadily in a horizantal circle with a period T by a string of length L. If the tension in the stringis constant and L increases by 1% find the percentage change in T.

### Physics

A rocket blasts off with acceleration of 5 m/s squared. After 1 min it runs out of fuel. What is the max height and total time in the air?

### Physics

display.cgi?id=1225682948 I'm still confused about how you got the (1/8)kx^2 and how to find the weight's maximum height at the top of its path through the air.

### Physics

Can someone help me with finding out the magnitude of the gravitational force a person with a mass of 67.5 kg would experience while standing on the surface of Earth? Thanx in advance.

### Urgent Physics!

A top starting from rest is spun for 3 seconds achieving an angular speed of 20 rad/s. How many radians has it gone through in this time? (a is constant)

### physics

During a workout, a person repeatedly lifts a 13 lb barbell through a distance of 1.5 ft. How many "reps" of this lift are required to burn off 100 Cal?

### physics

Two freight cars, each with a mass of 2.5 multiplied by 10^5 kg, collide and stick together. One was initially moving at 3.4 m/s and the other was at rest. What is their final speed?

### Physics or Science?

Why liquid soap dispensed through a small spout by pressing on it, solidifies interfering with its smooth ejection? thanks so much for an answer! Pietra

### physics

race car travels on racetrack at 38m/s and slowa at a constant rate of 20m/s over 10s how far does it move during this time

### Physics

Which of the following physical properties can be used to measure temperature using a thermometer? A. volume B. pressure C. density D. viscosity I think the correct answer is D?

### physics

Two freight cars, each with a mass of 3.9 105 kg, collide and stick together. One was initially moving at 3.2 m/s and the other was at rest. What is their final speed in m/s?

### PHYSICS

Estimate the terminal speed of a wooden sphere (density 0.700 g/cm3) falling through air if its radius is 3.20 cm and its drag coefficient is 0.470.

### Physics

A projectile is launched at an angle of 6.0 degrees above the horizontal. Which component of the velocity vector remains the same during the flight (neglecting friction).

### physics

A satellite orbits at an average altitude of h = 423 km. How long does it need to complete one full orbit? Use REarth = 6370 km and mEarth = 5.98 x 10^24 kg

### physics

At what displacement from the equilibrium is the total energy of a simple harmonic oscillator one - sixths KE and five - sixth PE? Answer should be in terms of the amplitude A.

### integrated physics and chemistry

classes of steel and iron are defined by the amount of WHAT? and other elements present in the alloy. is it zinc,tin,carbon,or aluminum?

### physics

Suppose David Ortiz hits a home run which travels 361. feet (110. m). Assuming it left the bat at 50.°, how fast was it hit?

### physics

how does the shotspotter system can determine the location of a shooting, given the initial muzzle report and the fact that this sound moves out in a spherical wavefront?

### physics

if you wished to warm 100 kg of water by 15 degrees celsius for your bath, how much heat would be required? (give your answer in calories and joules)

### Physics

Four 50-\mu {\rm{C}} charges are brought from far apart onto a line where they're spaced at 2.0-{\rm cm} intervals. How much work does it take to assemble this charge distribution?

### Physics

How is it that an electron accelerates towards the protons (nucleus) in a hydrogen atom? I had thought that the electric forces acting on each other is equal so they are in equilibrium.

### Physics

How is it that an electron accelerates towards the protons (nucleus) in a hydrogen atom? I had thought that the electric forces acting on each other is equal so they are in equilibrium.

### physics

Two freight cars, each with a mass of 3.9 105 kg, collide and stick together. One was initially moving at 3.2 m/s and the other was at rest. What is their final speed in m/s?

### physics

ok so dr= 2i + 3j while F= 5i + 2j It wants me to find the work. now i know w=Fxdr. what i want to know is why when you take the dot product of both, you get a different answer compared to when you just multiply the magnitudes.

### physics

Determine how much water would be present in a 10 tonne sample of lignite, has a moisture content of 65%, before crushing and drying. 10 tonnes is 10,000 kg.

### physics

A 22cm diameter bowling ball has a terminal speed of 77 m/s. What is the balls mass. I need to get the answer in kg. I can`t figure this one out for some reason. Thanks!!

### physics

A thin 12 cm long solenoid has a total of 460 turns of wire and carries a current of 2.1 A. Calculate the magnitude of the field inside near the center.

### physics help

A flywheel turns through 32 rev as it slows from an angular speed of 2.1 rad/s to a stop. How much time is required for it to complete the first 16 of the 32 revolutions?

### Physics

An oscillator with a mass of 520 g and a period of1.2 s has an amplitude that decreases by 2.20% during each complete oscillation. At what time will the energy be reduced to 15.0% of its initial value?

### Physics

The nucleus of the helium atom contains two protons that are separated by about 3.0 x 10-15 m. Find the magnitude of the electrostatic force that each proton exerts on the other

### physics

In a right triangle ABC, C = 90°, a = 21 ft and b = 76 ft. Solve for all the missing parts using the given information. (Round each answer to the nearest whole number.)

### Physics for Life science

1.Since action and reaction are exactly equal and oppositely directed, how is ever possible for a net force to be acting on the body?

### physics for life sciences

since action and reaction are exactly equal and oppositely directed how is it ever possible for a net force to be acting on a body?

### physics

A big yo-yo(radius .2m, mass 20kg) has a string wrapped about its circumference. If yo-yo falls, how far does it fall in 2 seconds? (The yo-yo is shaped like a disk)

### physics

Two identical loudspeakers are 2 m apart. A person stands 4.6 m from one speaker and 3.4 m from the other. What is the lowest frequency at which destructive interference will occur at this point?

### Physics

A simple pendulum, 2.0 m in length, is released from rest when the support string is at an angle of 25 from the vertical. What is the speed of the suspended mass at the bottom of the swing?

### physics

(a) What linear speed must an Earth satellite have to be in a circular orbit at an altitude of 153 km? m/s (b) What is the period of revolution? min Read the eBook

### physics

please differentiate between vibration, amplitude and frequency by giving relevant examples. I cant understand these concepts. I would be very grateful if they explained

### physics

a mass of 0.1kg falls freely under the action of gravity .find the force acting on it its momentum kinetic energy after 10s?

### Physics

Convert 341 m/s into km/h. (I have to leave the final answer to the correct number of digits according to the certainty rule for multiplying and dividing)

### PHYSICS

The velocity of a diver just before hitting the water is -8.7 m/s, where the minus sign indicates that her motion is directly downward. What is her displacement during the last 0.89 s of the dive?