# Math/Physics

208,687 results, page 29

### physics

The speed of an electron is known to be between 3.0×10^6 m/s and 3.3×10^6 m/s . Estimate the uncertainty in its position.

### Physics

The speed of an electron is known to be between 3.0×10^6 m/s and 3.3×10^6 m/s . Estimate the uncertainty in its position.

### Physics

If light in air is incident at 20°, at what angle is it refracted in glass?

### Physics

What is the energy (in eV ) of a photon of visible light that has a wavelength of 500 nm ?

### physics

How much work must be done on a 8.0 kg ball to give it a velocity of 36 m/s?

### Physics

What is the energy released in the fusion reaction: 2H+2H--> 4He + Q? How do I calculate this?

### physics

Part C Calculate (in MeV ) the total binding energy for 40 Ca .

### physics

What is the maximum acceleration of a platform that oscillates with an amplitude of 3.1 cm at a frequency of 8.0 Hz?

### physics

how much work can a 500 W electric mixer do in 2.50 min?

### Physics

What is the magnitude of the earth's gravitational field at sea level?

### physics

What is a car average acceleration if it slows down from 22ms to 15.7 m/s in 2.15 s?

### physics

what is the distance, given the velocity that has magnitude 1.2 m/s within 40 min.?

### physics

does the flame of gas stove emit light?explain

### Physics

What happens to the internal energy of an ideal gas when it is heated from 0C to 4C?

### physics

What happens to the internal energy of an ideal gas when it is heated from 0C to 4C?

### Physics

How can one solve this equation for t? Y = 1.3 + 18.8 t - (g/2) t^2 = 0 (Assume g = 9.8 m/s^2, the value on Earth)

### physics

assign units and determine net forces in a situation.

### physics

An sky object accelerates at 2m/s calculate the acting force on it

### physics

what is the mass of a car that weighs 60 000 Newtons on the moon?

### Physics

Can you think of any ways to measure instantaneous speed directly?

### physics

what happens when a liquid is being heated at its boiling point?

### physics

it takes 14 seconds for a runner to go from 5m/s to 19m/s? how do you calucate acceleration

### physics

you drive a car for 2.0 h at 40km/h, then for another 2.0 h at 60km/h. what is your average velocity?

### science (physics)

five examples of potential energy with diagram

### physics

what is the value of weight of a body of 10kg at the pole and equator ?

### physics

What is the average acceleration (in km/h2) of the bus for the entire 3.5-h period? Point A = (32,1) B = (46, 2.25) C = (38, 3.5)

### physics

What is the weight of a 12 kg mass on the moon if the gravitational acceleration (g) was only .8 m/s/s?

### physics

A train has a velocity of 72km/h. How far does it travelled in 1/2minutes

### physics

in electrolysis how is conductivity affected by the molecular mass of the solution

### physics

How many joules of potential energy does a 1.5 kg book gain when it is elevated 4.2 m?

### physics

how much force is needed to accelerate a 1800 kg car 3m/s 2

### Physics

If the angle decreases what will happen to the tension? Please explain why.

### physics

how fast can a 125N force accelarate a12 Kg. object?

### physics

Calculate the weight (in English units) of a 2300 kg tiger.

### physics

is there any gravitational force existent between charged objects?

### physics

Find the density of a 4.2- kg solid cylinder that is 13 cm tall with a radius of 5.0 cm.

### Physics

1. How is it that you could list five different speeds you are going at this moment?

### physics

Find the density of a 4.2- kg solid cylinder that is 13 cm tall with a radius of 5.0 cm.

### physics

Find the mass in grams of a carbon dioxide molecule.

### physics

Find the number of atoms in a gold ring of mass 6.43 g.

### Physics

how to find how many ridges a 10 p coin has? What do we measure and how do we work it out?

### Physics

What is the frequency of an electromagnetic wave if it has a wavelength of 1.4 km? The speed of light is 3 × 10 8 m

### physics

What is the value of charge of a body that Carries 20 excess electrons

### physics

what is the heat capacity of a gold ring that has a mass of 5.00g?

### Physics

I want a best project for science fair plz tell me

### Physics

An EM wave has a wavelength of 620 nm. What is its frequency? How would we classify it?

### Physics

Find the frequency of a wave whose period is 0.320s.

### physics

What voltage is required to run a 45 W light bulb if the current is 0.5 A?

### physics

If a voltage difference of 3V causes a 1.5 current, what is the resistance in the circuit

### Physics

Find the length of a simple pendulum that completes 17.0 oscillations in 35.0 s.

### physics

what is the mass of a playset that is moved with 580n of force for 11 seconds at 1.5 m/s?

### physics

what color appears on the screen where the two beams overlap?

### Physics

Calculate the de Broglie wavelength of a proton moving at 5.50x10^5 m/s.

### physics

Three resistors, 12 Ù, 18 Ù and 36 Ù, are connected in parallel. What is the equivalent resistance

### physics-14

If room temperature is 70 degrees farenheit,what is kelvin?____

### physics

what is the speed of 1kg object when the kinetic energy is 1 joule

### physics

What is the index of refraction of a liquid in which the speed of light is 2.22 x 108 m/s?

### physics

if givin 115 osculations in 2.40 seconds, what is the length of the pendulum

### physics

calculate the distance co verb for an object of mass20kg and force600n

### physics

find the area of parallelogram whose adjacent sides are +3+3 and -3-2+.

### physics

As the wavelength of a wave in a uniform medium increases, its speed will ?

### physics

how many RPM are required to attain 1g with a radius of 840 feet

### Physics

Explain why a balloon expands when heated and contracts when cooled.

### physics

how friction is non conservative in nature. explain with examples

### physics

if an object weighs 6 kgs on earth, what will it's weight be on mars

### physics

Find a vector of magnitude 18 which is perpendicular to both the vectors 4i^-j^-3^ and -2i^+j^-2k^.

### Physics

What is the average acceleration of a baseball that goes from zero to 47 m/s in 0.132 s?

### physics

A sports car accelerates from rest to 100 km/h in 6.25. What is the acceleration in m/s^2?

### physics

Find x- and y-components of the vector \vec {v}=(2.0cm/s , - x-direction).

### physics

if a juggernaut decelerates at 9m/s^2, how long will it take him to stop from 45m/s?

### physics

how do you convert 1.75 multiplied 10 to the 6th power grams to ounces?

### pre-ap physics

how do i find the vertical and horizontal components of velocity?

### pre-ap physics

how do i find the vertical and horizontal components of velocity?

### physics

what is the velocity of the jumper at the end of 1.5second? How far does he fall?

### Physics

You drive a car 2 h at 48 km/h then 2 h at 62 km/h. What is your average velocity? Answer in units of km/h

### physics

How many seconds is required to stop a vehicle travelling 55.9 km/h if it decelerates at 8.2 m/s/s?

### physics

What is the speed of a satellite in a geosynchronous orbit about Earth?

### physics

plz tell me how does wireless communication work in a jist

### physics

A car slows down from 40 km/hr to rest in a distance of 72 m. What was its acceleration

### physics

derive the formula v0=sqrt((deltaX)squared)*g)/2*deltaY

### physics

how to calculate the speed of sound at temp of -83F and 135F?

### physics

moment of inertia of a ring perpendicular to tangent and its plane

### Physics

weightlessness experienced while orbiting the earth is due to ?

### PHYSICS

What will be the final temperature if 1.9 x 10^2 kJ of heat is added to 0.5 kg of ice at 0 deg. C?

### Physics HARD

If an objects vbr is 6.32N/sc what is its mass? I'm so stuck...:((((

### physics

What is the intensity in watts per meter squared of 85.0 db sound?

### physics

Calculate the speed of a 10,000 kg airliner with a kinetic energy of 3.1 x 10^9 J.

### physics

Calculate the speed of a 10,000 kg airliner with a kinetic energy of 3.1 x 10^9 J.

### Physics

Find the work done in stretching the spring. Answer in units of J

### Calc and Physics

Damon and Reiny. Thanks for your quick and thorough responses.

### Physics

If velocity of wave of 0.15m/s and the frequency of 20HZ,what is the wavelength?

### physics

The resultant of two forces x and y will be greatest with the angle between x and y.

### physics

A glacier advances at 3.6 × 10−6 cm/s. Howfarwillitmovein4.1y? Answer in units of cm

### Physics

A car traveling at 5.0 m/s accelerates at the rate of 0.8 m/s2 for an interval of 3.0 s. Find vf.

### physics

what is the frequency of a citizen's band (CB) radio which has a wavelength of 11.5 meters ?

### physics

list and explain in full details 5 locking devices

### physics

the number of degrees of freedom for a rigid diatomic molecule is ------------

### physics

Find è and W in the figure below where w1 = 17.0 N, w2 = 31.0 N, and á = 67.5°, assuming that the arrangement is at rest.

### Physics

How much work can a 252 W motor accomplish in 13 seconds?