Math/Physics

207,240 results, page 34

physics

How much voltage is there in a circuit with a resistance of 12 ohms and a current of 3 amps

physics

state 8 object each used in sport and welfare,which may be considered as projectile

physics

Why is it impossible for a material to have an index of refraction less than one

physics

How does pressure work as a restoring force to create a sound wave?

science physics

describewhat is an importance of microscope to mankind it's urgent please help?

Physics

A block of mass 5kg is lifted 2m in 3sec. Find the work done.

physics

what is the speed of light moving through a medium of index refraction 2.45?

Philosophy

In what ways can we say that quantum physics both is and is not classical science?

Physics Class

The equation describing the motion of an object is y=0.8cos(4.2t+0.32). What is its period?

physics

what is the gravitational force on a 60k person on the earth, due to the moon?

physics

if you kick a football at a 30 degree angle, how many seconds is it in the air, and how high does it go

PHYSICS !!!!!!!!!!!!!!!!!!!!!!!!!!!!

a wave has a frequency of 2 Hz. find its period ? please show work.....

physics

what is the diameter if a 1.00m tungsten wire whose resistence is 0.22 ohms?

physics

what is the diameter of a 1.00 m length of tungsten wire whose resistance is 0.22 ohms?

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

Can a metal sphere of radius 1cm hold a charge of 1coloumb

physics

How will changing the charge change the electric field strength at a distance?

Physics

Using the Bohr model of hydrogen, find the linear momentum, when n=3.

physics

What emf is required to cause 12 amperes to flow through a resistance of 7.2 ohms?

physics

i need to make a working model on the applications of electric generator

physics

when you peddle a cycle, it goes fowrward, when you backpeddle-nothing happens. why?

College Physics

What is the momentum of an automobile (weight = 9700 N) when it is moving at 36 m/s to the south?

physics

What is the momentum of an automobile (weight = 9800 N) when it is moving at 36 m/s to the south? magnitude

physics

A body of mass 20kg dropped from a height of 2m calculate the workdone?

physics

What current flows when a 40 v potential difference is imposed across a 1.8 kÙ resistor?

Physics

True or False Light is both a mechanical wave and a particle

Physics

What hanging mass will stretch a 1.9-m-long, 0.54 - diameter steel wire by 1.2 ?

Physics

If 60 Cal. are added to 6 g. of iron at 20 degrees Celsius what is the final temp.

physics

A BODY THROWN UPWARD ALWAYS FALLS ON THE GROUND ,EXPLAIN IT?

physics

two velocities each 5 ms-1 are inclined to each other at 60 degrees find the resultant

physics

A piece of metal has a density of 0.20g/cm^3.what is the volume in cm^3 of a 1g sample of a substance?

Phys Science

ok i posted it twice and no one has yet to help me about my physics

Physics

All the formulars for solving motion under gravity and waves

physics

how to explain the relationship between the mass of the rotating object and its period?

physics

one electron travels twice as fast as another. Which has the longer wavelength?

physics

How much work is done when a mass of 30N is lifted vertically through 6m

physics

A bus traveling at 30.0km/h accelerates at a constant 3.5 m/s^2 for 6.8s. what is its final velocity?

physics

how do you find a becquerel in a radioactive element without a radiation meter?

physics

An electron travels 7.63 m in 7.33 × 10−8 s. How fast does it travel? Answer in units of cm/s

Physics

You carry a 20 n box 5 m horizontally across a room. The work you do is? Is 4 J correct?

physics

How would you draw 4 cm 45 degrees north of east plus 4 cm west?

physics

An electron travels 3.75 m in 6.41 × 10−8 s. How fast does it travel? Answer in units of cm/s

physics

A nail is dropped from a height of 400m. How long does it take to land?

physics

what is the average velocity of a vehicle that uniformly accelerates from rest to 38 fps?

science[physics]

why is the pressure more on ground when a person is walking than when he is standing ?

physics

why is it wrong to think of a scientific law as a universal statement of truth?

physics

a car requires a velocity of 32 m/s assuming that its acceleration is uniform, what is its value?

physics

How do we compensate for thermal expansion /contraction in the construction of steel bridges?

physics

How do we compensate for thermal expansion /contraction in the construction of railway tracks?

Physics

what equation would I use to find the magnitude of the mass's velocity?

physics

If a bug traveled a distance of 180 meters at a speed of 15 m/s, what was the time?

Physics

At 7.65 cents per kilowatt-hour, what does it cost to operate a 8.00 hp motor for 7.00 hr?

physics

What is the acceleration for the turtle moving with constant velocity of 5m/s to tghe right

physics

a 50 kg person has a weight of 80 N on the surface of the moon what is the acceleration due to gravity

physics

What acceleration will you give to a 24.2 kg box if you push it horizontally with a net force of 82.0 N?

Physics

How much force is required to accelerate 7.0 g object at 11000 "g's" in a centrifuge?

Physics

How do you get the velocity of a particle given a potential energy diagram and its mass?

Physics

What is the wavelength of radio waves of frequency 1400 kHz? (a) 42.9 (b) 214 (c) 42.9 (d) 3*10^8

physics help please

What are the small-amplitude period and frequency of a 10.0 m long pendulum?

physics

a 40kg girl climbs a vertical ladder at .5 m/s. what is her power output?

Physics

An airplane has an airspeed of 100km/h north. if there is a 30km/h headwind what is its groundspeed

Physics(light)

why the ray reflected by the prism is brighter than that by the plane mirror?

Physics

A block of mass m = 5.2 kg is pulled up a è = 24° incline as in the figure with a force of magnitude F = 34 N.

Physics help pleasee

How much power is generated by a 90 kg sprinter that accelerates up to 9.0 m/s in 2.8 seconds?

physics

a ball is thrown up vertically and caught at 9.3 sec. what is the intial velocity

physics

a 8.0 kg object undergoes an acceleration of 2.2 m/s squared.what is the resulting force acting on it?

physics

What is the acceleration of a 0.30 kg volleyball when a player uses a force of 93 N to spike the ball?

physics

how long does a car with an acceleration of 2.0 m/s^2 take to go from 10m/s to 30m/s?and its solution

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. Change in X = ? M

physics

A bicyclist is traveling at 19.3 km/h when he speeds up with a constant acceleration of 0.67 m/s2. What is his velocity after 5.00 s?

physics

Find the speed of a sleigh sliding 326 feet in 22 seconds.

Physics

What is the electric field midway between an electron and a proton separated by 0.7 nm?

Physics

How do you calculate the phase constant in degrees given amplitude and frequency?

physics

If a person runs a marathon 26.4 miles in 2.5 hours, what is his/hers speed?

physics

How can you explain the caculation of velocity or speed using distance and time?

Physics

What force would be needed to accelerate a 0.040-kg golf ball at 20.0 m/s^2??

physics

A penny falls from a bridge. At 3.2 seconds it will have fallen ___

Physics

What are some common examples of light refraction, excluding rainbows?

physics

How long does it take a 25 kW steam engine to do 5.6 × 10^7J of work? Answer in units of s

physics

what is the speed of a sound wave if its frequency s 160 hertz and its wavelength is 2.2m?

PHYSICS

IS IT BETTER TO PUSH A GROCERY CART FROM THE BACK,OR TO PULL IT FROM THE FRONT.

PHYSICS

IS IT BETTER TO PUSH A GROCERY CART FROM THE BACK,OR TO PULL IT FROM THE FRONT.

Physics

Can an electric force between two point charges be negative?

physics

An isotope of iodine is I-126.how many protons, neutrons &electrons does it have

physics

What are the 3 primary subatomic particular? What is the charge on each? where in the atom is each particle located?

physics

What is the pressure in Pascals exerted on a surface measuring 0.5 m^2 by a force of 125 N?

physics

How much kinetic energy does a 2000 kg traveling 70 mph have?

physics

a bee flies 12m north, 8m west, and then 4m south, what is the displacement

physics

A storage tank of negligible mass and 30 m high is filled with gasoline

Physics

Show that Keplar's third law works for each of the terrestrial planets?

physics

The specific temperature at which a substance changes from a liquid to a gas is an example of a?

physics

why are railway track laid in large sised concrete leapers

physics

how much magnetic force does it take to move a 2000lb car?

physics

What is the wavelength of an X-ray photon with energy 6.0 (6000 )? (Hint: 1 = 1.60 10-19 joule.)?

physics

what is the wavelength of an X- ray photon with energy 10 keV?(10,000eV)? what is the frequency?

physics

If a wheel 211 cm in diameter takes 2.25 s for each revolution, find its period. T=?s

Physics 30

Vectors A) 3.5 cm North B) 4.2 cm West Algebraically subtract B from A(B-A) Whaaaa? Please help

physics

When measuring kinetic friction, why is it necessary to move at a constant velocity?

physics

What is the mass of an object that requires a force of 65N to accelerate it at a rate of 13 m/s2?

physics

What is the mass of an object that requires a force of 65N to accelarate it at a rate of 13 m/s2?

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