207,240 results, page 34
How much voltage is there in a circuit with a resistance of 12 ohms and a current of 3 amps
state 8 object each used in sport and welfare,which may be considered as projectile
Why is it impossible for a material to have an index of refraction less than one
How does pressure work as a restoring force to create a sound wave?
describewhat is an importance of microscope to mankind it's urgent please help?
A block of mass 5kg is lifted 2m in 3sec. Find the work done.
what is the speed of light moving through a medium of index refraction 2.45?
In what ways can we say that quantum physics both is and is not classical science?
The equation describing the motion of an object is y=0.8cos(4.2t+0.32). What is its period?
what is the gravitational force on a 60k person on the earth, due to the moon?
if you kick a football at a 30 degree angle, how many seconds is it in the air, and how high does it go
a wave has a frequency of 2 Hz. find its period ? please show work.....
what is the diameter if a 1.00m tungsten wire whose resistence is 0.22 ohms?
what is the diameter of a 1.00 m length of tungsten wire whose resistance is 0.22 ohms?
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
Can a metal sphere of radius 1cm hold a charge of 1coloumb
How will changing the charge change the electric field strength at a distance?
Using the Bohr model of hydrogen, find the linear momentum, when n=3.
What emf is required to cause 12 amperes to flow through a resistance of 7.2 ohms?
i need to make a working model on the applications of electric generator
when you peddle a cycle, it goes fowrward, when you backpeddle-nothing happens. why?
What is the momentum of an automobile (weight = 9700 N) when it is moving at 36 m/s to the south?
What is the momentum of an automobile (weight = 9800 N) when it is moving at 36 m/s to the south? magnitude
A body of mass 20kg dropped from a height of 2m calculate the workdone?
What current flows when a 40 v potential difference is imposed across a 1.8 kÙ resistor?
True or False Light is both a mechanical wave and a particle
What hanging mass will stretch a 1.9-m-long, 0.54 - diameter steel wire by 1.2 ?
If 60 Cal. are added to 6 g. of iron at 20 degrees Celsius what is the final temp.
A BODY THROWN UPWARD ALWAYS FALLS ON THE GROUND ,EXPLAIN IT?
two velocities each 5 ms-1 are inclined to each other at 60 degrees find the resultant
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?
ok i posted it twice and no one has yet to help me about my physics
All the formulars for solving motion under gravity and waves
how to explain the relationship between the mass of the rotating object and its period?
one electron travels twice as fast as another. Which has the longer wavelength?
How much work is done when a mass of 30N is lifted vertically through 6m
A bus traveling at 30.0km/h accelerates at a constant 3.5 m/s^2 for 6.8s. what is its final velocity?
how do you find a becquerel in a radioactive element without a radiation meter?
An electron travels 7.63 m in 7.33 × 10−8 s. How fast does it travel? Answer in units of cm/s
You carry a 20 n box 5 m horizontally across a room. The work you do is? Is 4 J correct?
How would you draw 4 cm 45 degrees north of east plus 4 cm west?
An electron travels 3.75 m in 6.41 × 10−8 s. How fast does it travel? Answer in units of cm/s
A nail is dropped from a height of 400m. How long does it take to land?
what is the average velocity of a vehicle that uniformly accelerates from rest to 38 fps?
why is the pressure more on ground when a person is walking than when he is standing ?
why is it wrong to think of a scientific law as a universal statement of truth?
a car requires a velocity of 32 m/s assuming that its acceleration is uniform, what is its value?
How do we compensate for thermal expansion /contraction in the construction of steel bridges?
How do we compensate for thermal expansion /contraction in the construction of railway tracks?
what equation would I use to find the magnitude of the mass's velocity?
If a bug traveled a distance of 180 meters at a speed of 15 m/s, what was the time?
At 7.65 cents per kilowatt-hour, what does it cost to operate a 8.00 hp motor for 7.00 hr?
What is the acceleration for the turtle moving with constant velocity of 5m/s to tghe right
a 50 kg person has a weight of 80 N on the surface of the moon what is the acceleration due to gravity
What acceleration will you give to a 24.2 kg box if you push it horizontally with a net force of 82.0 N?
How much force is required to accelerate 7.0 g object at 11000 "g's" in a centrifuge?
How do you get the velocity of a particle given a potential energy diagram and its mass?
What is the wavelength of radio waves of frequency 1400 kHz? (a) 42.9 (b) 214 (c) 42.9 (d) 3*10^8
What are the small-amplitude period and frequency of a 10.0 m long pendulum?
a 40kg girl climbs a vertical ladder at .5 m/s. what is her power output?
An airplane has an airspeed of 100km/h north. if there is a 30km/h headwind what is its groundspeed
why the ray reflected by the prism is brighter than that by the plane mirror?
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.
How much power is generated by a 90 kg sprinter that accelerates up to 9.0 m/s in 2.8 seconds?
a ball is thrown up vertically and caught at 9.3 sec. what is the intial velocity
a 8.0 kg object undergoes an acceleration of 2.2 m/s squared.what is the resulting force acting on it?
What is the acceleration of a 0.30 kg volleyball when a player uses a force of 93 N to spike the ball?
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
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
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?
Find the speed of a sleigh sliding 326 feet in 22 seconds.
What is the electric field midway between an electron and a proton separated by 0.7 nm?
How do you calculate the phase constant in degrees given amplitude and frequency?
If a person runs a marathon 26.4 miles in 2.5 hours, what is his/hers speed?
How can you explain the caculation of velocity or speed using distance and time?
What force would be needed to accelerate a 0.040-kg golf ball at 20.0 m/s^2??
A penny falls from a bridge. At 3.2 seconds it will have fallen ___
What are some common examples of light refraction, excluding rainbows?
How long does it take a 25 kW steam engine to do 5.6 × 10^7J of work? Answer in units of s
what is the speed of a sound wave if its frequency s 160 hertz and its wavelength is 2.2m?
IS IT BETTER TO PUSH A GROCERY CART FROM THE BACK,OR TO PULL IT FROM THE FRONT.
IS IT BETTER TO PUSH A GROCERY CART FROM THE BACK,OR TO PULL IT FROM THE FRONT.
Can an electric force between two point charges be negative?
An isotope of iodine is I-126.how many protons, neutrons &electrons does it have
What are the 3 primary subatomic particular? What is the charge on each? where in the atom is each particle located?
What is the pressure in Pascals exerted on a surface measuring 0.5 m^2 by a force of 125 N?
How much kinetic energy does a 2000 kg traveling 70 mph have?
a bee flies 12m north, 8m west, and then 4m south, what is the displacement
A storage tank of negligible mass and 30 m high is filled with gasoline
Show that Keplar's third law works for each of the terrestrial planets?
The specific temperature at which a substance changes from a liquid to a gas is an example of a?
why are railway track laid in large sised concrete leapers
how much magnetic force does it take to move a 2000lb car?
What is the wavelength of an X-ray photon with energy 6.0 (6000 )? (Hint: 1 = 1.60 10-19 joule.)?
what is the wavelength of an X- ray photon with energy 10 keV?(10,000eV)? what is the frequency?
If a wheel 211 cm in diameter takes 2.25 s for each revolution, find its period. T=?s
Vectors A) 3.5 cm North B) 4.2 cm West Algebraically subtract B from A(B-A) Whaaaa? Please help
When measuring kinetic friction, why is it necessary to move at a constant velocity?
What is the mass of an object that requires a force of 65N to accelerate it at a rate of 13 m/s2?
What is the mass of an object that requires a force of 65N to accelarate it at a rate of 13 m/s2?