Math/Physics

209,467 results, page 32

physics

The resultant of two forces X and Y will be the greatest when the angle between X and Y is:

physics

How much power is dissipated by each resistor in the figure below, in which V = 24 V and R2 = 15 ?

physics

How much power is dissipated by each resistor in the figure below, in which V = 24 V and R2 = 15 ?

Physics

Light elements formed in Big bang theory ?

math 6

Javier solves three math problems in five minutes. He has 20 math skill-work questions for homework, and he wants to complete them before talking with friends. How many minutes will javier take to complete 20 math skill work questions

math mental math help

i need to use mental math and the distributive property to simplify: can you pls check if this correct? a) 19(-6) i got: -114 or do i do like this: 10*(-6)=-60 9*(-6) =-54 -60 + -54= -114 b) 102* $21 i got: $2142 or do i do mental math like this: 100*21 = 2100 2 * 21 = 42 2100...

physics

Hi I did a physics lab where we hung one spring with several different masses and found its K value, then hung another spring with several different masses and found its K value, then we joined both the springs together and hung several masses on it, and then found the K value...

Stats

About 10% of the population of a large country is math phobic. If two people are randomly selected what is the probability both are math phobic? And hat is the probability that at least one is math phobic? Any way to do this on stat crunch?

physics

light travels from ethanol intro crown glass. what's the brewster angle in this situation? illustrate your answer with a light ray diagram. what's the signifcance of this angle of incidence? n1=1.36for ethanol nR=1.52 for crown glass tanangleB=nR/ni =1.52/1.36 =1.12 (48.2 ...

math

The National Association for Women in Science asked recent high school grads if they had taken certain science classes. Of those surveyed, 32 said they had taken physics, 51 said they had taken chemistry and 15 said they had taken both. Ten said they had taken neither. How ...

MATH

The National Association for Women in Science asked recent high school grads if they had taken certain science classes. Of those surveyed, 23 said they had taken physics, 47 said they had taken chemistry and 5 said they had taken both. Seven said they had taken neither. How ...

physics

I'm having a really hard time with this physics problem...not really sure where to begin or which equation to use....please help: You are assigned the design of a cylindrical, pressurized water tank for a future colony on Mars, where the acceleration due to gravity is 3.71 ...

Absolute and relative change

In one region the number of students in Math 101 is 20% more than the number of students in Math 123. If there are 480 students in Math 101, how many students are in Math 123?

Physics

Can Anyone help me with this physics problem? The piston of a bicycle pump is circular in shape and has a diameter of 3.18 cm. When you exert a pushing force on the pump handle, it exerts a pressure of 225 kpa on the air inside the pump cylinder. 1) What is the force exerted ...

Re: Physics/Math

A sphere of mass 2.7 x 10^-4 kg is suspended from a cord. A steady horizontal breeze pushes the sphere so that the cord makes a constant angle of 41 degrees with the vertical. Find the magnitude of the push provided by the breeze and Find the tension in the cord. you have a ...

Math

16.Eliot spent 24 minutes solving 8 math problems.At that rate, how many math problems can he solve in 54 minutes? a.12 B.16 C.18 D.24 A? Can you explain why it isnt a

Physics

This is a theoretical question, ignore the numbers. A 205-kg log is pulled up and to the right on a ramp by means of a rope that is parallel to the surface of the ramp. The ramp is inclined at 30.0 degrees with respect to the horizontal. The coefficient of kinetic friction ...

Math/Physics

I am unsure of what exactly I am looking for in this problem... One of the highlights of the Calaveras Fair, besides the bullfrog jumping contest, is the watermelon seed spitting contest. The seed spitting is being done in the direction of s ⃗=5i ⃗+j ⃗. The ...

Math

Can somebody help me out here. I want to know why I am good with math problems but I don't get word problems until it is made out of a equation. The reason is that you have learned math as procedures and facts...math as a form of thinking, or analysis, hasn't sunk into your ...

Physics

When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, its frequency is 12 Hz. When another object of mass m2 is hung on the spring along with m1, the frequency of the motion is 4 Hz. Find the ratio m2/m1 of the masses. For Further...

Physics/Math

A machine carries a 5.0 kg package from an initial position of di = (0.50 m) i + (0.75 m) j + (0.20 m) k at t = 0 to a final position of df = (8.00 m) i + (11.0 m) j + (7.40 m) k at t = 13 s. The constant force applied by the machine on the package is F = (2.00 N) i + (4.00 N...

math

Hello. I'd like to find free videos for math on the Internet? By using Youtube can I search math videos for elementary school students? Would you let me know a good way to use free videos about various subjects on-line. Thank you.

PHYSICS

You push your physics book 2.20m along a horizontal tabletop with a horizontal push of 2.20N while the opposing force of friction is 0.500N . How much work does your 2.20N push do on the book? How much work does the friction force do on the book? How much work does the normal ...

math math math

35 is what percent of 200

English

1. He helped Mother wash the dishes. 2. He helped Mother with the dishes. 3. He helped his brother study math. 4. He helped his brother with math. 5. He helped study math. 6. He helped with math. 7. He helped his brother study math. 8. He helped me study math. 9. He helped ...

physics/math

Three people are trying to hold a lion still for the vet. The lion, in the center, is wearing a collar with three ropes attached to it and each person has a hold of the rope. charlie is pulling in the direction of 62 degrees west of north with a force of 175 newtons. Sam is ...

math

Help! I am gettting a C in math and I am so cofussed! How do I study better but have fun while I do it? I love math, I take it as a game, I take the #'s and use their equations. I know you might not like problem solving q?, but try to get a tutor & I know u can do it. GOOD ...

math fractions

•math - Ms. Sue, Sunday, November 16, 2014 at 12:39pm 12 •math - bob, Sunday, November 16, 2014 at 12:56pm Ms. Sue can you tell me how you got that answer please. •math - Ms. Sue, Sunday, November 16, 2014 at 1:09pm Multiples of 6: 6, 12, 18, 24 Multiples of 4: 4, 8, 12...

Physics

In calculating the force of gravity between two objects, if the mass of one objects increased by 4 and the other by 2, how many times would the force of gravity increase? Ok well Im horrible at physics but the way I understood it was that you would take 4 times 2 then divide ...

Physics

A car weighing 9800 N moves around a circular track of 70 m in 60 s. (a)

physics

How does changong the tension of a string change the pitch? It shortens the ocilation

Physics

does anyone know what the rate of sound waves is for 12.6hz? Never mind got it

PHYSICS

The masses and coordinates of four particles are indicated in the following table. 40 g

Physics

When hitting a golf ball, does the force of gravity increase or decrease??

Physics

What voltage is required to store 7.0 10-5 C of charge on the plates of a 5.0 µF capacitor? _________ V

Physics

what is the use of knowing the center mass of an object when making a calculation?

Physics

Why does the central maximum of a diffraction pattern is twice as long as any other? Thank you

Physics

Why does the central maximum of a diffraction pattern is twice as long as any other? Thank you

Science (physics)

I need to know how to build a catapult. I have no idea of where to start.

physics

what is the initial velocity (Vyo) of a projectile launched horizontally? why? i know that it is 0 m/s, but i don't know why/how to explain it.

physics

Is it possible for a collision to occur in which all of the kinetic energy is lost?

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.

physics

if the pulling force P is 150 N and the crate dosent move, what is the magnitude of f

Physics-Rutherford

Can you please give me a brief explanation of Rutherfords experiment?

Physics

The average radius of the earth is 6.38*10^6m. Is the diameter just twice that or 12.8*10^6m. The circumference is 6.28(6.38*10^6)=40.1*10^6m

Physics

Find the gravitational force between the sun and the earth in newtons?

Physics/chemistry

Describe the partcle Theory of a HOt air Balloon?

Physics

If you weighed 112 N on the Moon where g=1.6N/kg, how much would you weigh on Earth?

Physics

(dwrls) If it is $ .20 $/kWh x 10kWh = Would it cost $2.00 per hour?

Physics

what is the amount of gravity im m/s on each planet in the solar system. I need to know by Wednesday. Thanks

Physics

The energy of a photon is directly proportional to its..... I think it may be frequency. Is that correct?

Physics

In the photoelectric effect, what determines the kinetic energy of the ejected electrons?

PHYSICS

Calculate the power output of a 1.3-g fly as it walks straight up a windowpane at 2.5 cm/s

Physics

How can elements with low atomic numbers have so many spectral lines?

Physics check

In 1906, J. J. Thomson won the Nobel Prize for the discovery of the ..... electron?

Physics

What does wave interference have to do with the electron energy levels in an atom?

physics

How would you do this? The K is 25.0 N/M The spring's max amount of elastic potential energy?

physics

How would you do this? The K is 25.0 N/M The spring's max amount of elastic potential energy?

physics

what 2 factors determine the size of the force of gravity? & what is the relationship between them?

physics

how do you compare mass and weight on the earth, moon, and outer space?

physics

i was just wondering what approx is the change in PE in J when standing up from your chair and the KE when walking in J.

physics

i was just wondering what approx is the change in PE in J when standing up from your chair and the KE when walking in J.

Physics

What is the speed of an electromagnetic wave that has a frequency of 7.8 x 10^6 Hz? How would I solve this problem?

physics

what will happen to a block of iron with a whole in the middle if put in oven

physics

Explain how the pitch of the roaring sound relates to the length of the tube.

physics

How much force is needed to accelerate a 50-kg rider and her 250-kg motorcycle at 5 m/s2?

Grade 11 Physics

Rearrange the equation : d=v2t - 1/2at(squared) to solve for a

physics

An object is thrown vertically upward with a speed of 19.1 m/s. How high does it rise?

physics

In Harmonic Motion how does the value of g affect the time period of a pendulum?

Physics

Does the velocity of a model rocket increase or decrease when the parachute is deployed?

Physics

When a spring is fully extended is the kinetic energy high or low? Why?

physics

At what altitude above Earth's surface would the gravitational acceleration be 3.0 m/s2?

physics

At what altitude above Earth's surface would the gravitational acceleration be 3.0 m/s2?

Science - gr. 10 physics

How do you find displacement when given a velocity/time graph?

Physics

Why does a pencil look broken if you hold it at an angle in a beaker of water?

Physics

How far does a photon (light) move in one nm in units of feet?

Physics

How large is the current U.S. depth and the trade deficit in exponential notation?

Physics

How is Snell's law being used in real life application?

Physics

Why does frequancy stay the same when going through different mediums?

physics

If the planes mass with them in it was 318kg, calculate the force due to weight?

physics

why does the total mechanical energy on a roller coaster stay the same?

physics

What is the momentum of a proton travelling at v = 0.95c in the x-direction in the reference frame?

physics

a = m2^-1 (m1 a) -g solve for acceleartion it's the same post below they cancel out

Physics

Is mass the one and only thing that produces a gravitional force???

Physics (algebra bit)

rearanging V^2 = Vo^2 + 2 a (X - Xo) for V gives me V = (Vo^2 + 2 a (X - Xo))^(2^-1) or this V = (Vo + 2 a (X - Xo))^(2^-1) How come Vo^2 dosen't become Vo

physics

What is the magnitude of the acceleration of a sprinter running at 9.0 m/s when rounding a turn of a radius 26 m?

college physics

the question is that what happened when the ozone layer becomes destroyed?

Physics

How many meters does a bug fly in 1120 seconds if it travels at 1 cm/sec.?

Physics

What do we call the combinations of all forces that act on an object? I really do not know this!

physics

What is the wavelength of the higher frequency limit (18 megahertz) in dry air at 0 C?

physics

What is the distance traveled in 22 s as a given sound moves through seawater at 25 C?

physics

What is the distance travelled in 22 s as a given sound moves through steel?

physics

Please show me how to derive the relativist mass formula: m = m0 / sqrt(1 - v^2/c^2)?

physics

an apple weighs about 1N. what is its mass in kilograms ? what is its weight in pounds?

Physics

14. Which of the following wavelengths will produce standing waves on a string that is 3.5 m long? a. 1.75 m b. 3.5 m c. 5.0 m d. 7.0 m

Physics

The voltage across a 10-ohm resistor carrying 3 amps must be?

physics

At what temperature do the molecules of nitrogen gas have an rms speed of 35 ?

physics

what is the weight of a 100kg man on the moon with a gravitaional acceleration of 1.6m/s(squared)?

physics

How far does a 1.58-kg stone with the kinetic energy of 3.11 J go in 1.86 s if it is moving in a straight line?

physics

find time it takes for a sprinter to accelerate from rest to 10 m/s. If acceleration is 4.0 m/s sq.

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