Math/Physics
214,413 results, page 39

physics
calculate the debroglie wvelenth of the electron orbitting in the n=2 of hydrogen atom 
physics
Explain the difference between a GET and MOSFET on the basis of their construction and working 
Physics
How much energy is required to ionize hydrogen when it is in the state with n = 6? (answer in eV) 
physics
compute the mass of the following assuming if it to be a sphere of radius 6370km 
physics
state or law which explains why a ship can easily sink than overturn? 
Physics/Cars
Does the mass of the car matter when driving on the road? When skidding? 
physics
How much energy is needed to heat and melt 3.0 kg of copper initially at 83°C 
PHYSICS
Why do objects gain mass while approaching the speed of light 
physics
what is the importance/significance of calculating the magnetic flux density of a solenoid? 
physics
Find the relation between phase difference and path dofferense 
physics
A proton is confined to a nucleus of radius 5 FM.what's the minimum uncertainty in momentum? 
physics
a woman drives at a speed of 70 mph how many miles does she travel in 24 minutes 
physics
Michael, whose mass is 80 kg, runs at a speed of 3 m/s. What is his kinetic energy? 
Physics
When projectile angle is 45°what is the relation between maximum height and range 
physics
Calculate the momentum of a 100 kg object moving with velocity 10m/s 
physics
Calculate the momentum of a 100 kg object moving with velocity 10m/s 
Physics
If a man walks 4 km east and then 5 km south. How far is he from the point where he started? 
physics
Distance travelled by a ball dropped from a cliff in the 10th second. 
physics
how much work is done when 100 kg lifted 5 meters above the ground 
physics
Find the density of the earth if its mass is 6×10^3kg and radius is 6.4×10^3km 
Physics
what must be the net force if a 19.9 kg mass accelerates to the left at a rate of 2.2m/s^2? 
Physics
Find, to 3 decimal place, the frequency of the hour hand of a clock 
physics
How much work is required to lift a 5.2kg concrete block to a height of 3.1 m? 
mathematical physics
Using Stokes' theorem evaluate ∫c F.dl where F = yi^+ xz^3 j^z y^3 k^ and C is the circle x^2+ y^2 = 4; z = 3. 
physics
How much heat is necessary to change 345 g of ice at 11°C to water at 20°C? 
physics
How much heat is necessary to change 345 g of ice at 11°C to water at 20°C 
Physics
A 20 kg block is placed on a 35 degree ramp. What is its true metric weight? 
physics
some rocks melt at 1800farenheit. what is the temperature in the celsius scale ? 
Physics
The density of an object is 1500kgm3, the mass is 10000g find the volume 
Physics
What are some scientific questions that can be asked about projectile motion? 
physics
A gas occupies 20 dm³at 30°c at 2.5 atm find its volume ayt s.t.p. 
Physics
Which of the following is an element? H2O Hydrogen Carbon dioxide A supernova 
physics
A stone is thrown vertically upward at 23 m/s. How fast is it moving when it reaches 14 m? 
physics
Which of the following statements is false regarding the ‘drift’ of charge carriers? 
physics
if r1=2ohms, r2=4ohms, r3=6ohms. Then what is the voltmer reading connected in series 
physics
What is the pressure of the water in pascals at the bottom og a lake which is 5 meters deep? 
Physics
What is the reaction of the earth pulling down on a pen that is lying on a table 
physics
A bicycle starts from rest and reaches 6.0 m/s after 4 seconds. What is its acceleration? 
physics
Does the kinetic energy of a car change more when it speeds up from 10 to 15 m/s or from 15 to 20 m/s? Explain. 
physics
Does the kinetic energy of a car change more when it speeds up from 10 to 15 m/s or from 15 to 20 m/s? Explain. 
Physics
If a force of 15kg. wt acts on a mass of 14 kg, what will be its velocity after 8 seconds? 
physics
how much work is done if a force of 12N moves an object a distance of 5m 
Physics
What is the work done when a force of 30Newtons moves through a distance of 20Meters? 
Physics
if a molecules in a solid has a temp of T = hf/2k then what would be the average energy of vibration 
physics
How does a washing machine's 'spin cycle' expel water from clothes? 
physics
Explain why helicopters need 2 rotors to fly in a straight line. 
physics
ifv=(3i+4j+5k)m/s is the instantaneous velocity of a body mass 1.50kg calculate its K.E 
Physics
What is the period of a wave that travels through a spring at 2.5 m/s and has a wavelength of 1.3 meters? 
Physics
1.A Speed Of A Bullet Of Mass 20g Is 200km/h. What Is The Kinectic Energy. 
Physics
How much force does it take to push an 80 lb. steel cart on wheels? 
Physics
calculate K.E in Joules of a baseball w/ a mass of 237.2 cg moving at 85.00 mph 
Physics
How meny watts need to up the 18kg in 4mtr per 15 second 
physics
What is the effect of increasing the inclination of the track to the acceleration of the rider in the experiment? 
Physics
When a mass is hung from a spring stretches it by 15 cm. What is the period of the oscillations of this system? 
physics
Cylinder water tank 80cms height 1000liters what is its diameter 
physics
If a car has a mass of 400 kg and a velocity of 30 m/s to the east, what is the magnitude of its momentum? 
Physics
Find the centripetal acceleration of a car that rounds an 80 m radius curve at 10 m/s. 
PHYSICS
If that charge is 3.7 μC , by what percentage does the mass of a 31 g comb change during charging? 
physics
What force is needed to accelerate a child on a sled (total mass = 60 kg) at 1.25 m/s2? 
Physics
How much heat is needed to melt 14.3kg of silver that is initially at 44°C? 
Physics
Which of the following wavelengths will produce standing waves on a string that is 1.9 m long? A.1.9 B.3.3 C.3.5 D.95 
physics
a skydiver has amass of 140 kg.at what speed will she have a momentum of 10,000 kg m/s? 
physics 1
what is the peiod of vibrating object which an acceleration of 8.0m/s .when its displacement is 1.0m?what should be the answer? 
physics 1
what is the peiod of vibrating object which an acceleration of 8.0m/s .when its displacement is 1.0m?what should be the answer? 
Physics
A charge q is placed at h distance from the base of centre . Find the flux ? 
Physics
In what part of the electromagnetic spectrum does the wavelength 0.0141 nanometers belong in? 
physics
lighted matchstick brought near the negatively charged electroscope 
physics
Two instances during which the heating effect of current is not required 
Physics
What effect do the following forces have on point? 100N, 30 degrees E of N 
physics
Instances where the heating effect of current is not required. Plssss helllp 
physics
Instances where the heating effect of current is not required. Plssss helllp 
Physics
A car travels at a speed of 70km/h. What distance will it cover in 30 minutes 
Physics
A car travels at a speed of 70km/h. What distance will it cover in 30 minutes 
physics
if a body moves 3m north,then 4m East and finally 6m South.what will be the displacement? 
Physics
Does the speed of sound in air depend on the frequency of the wave? V=[(gamma.RT)/M]^(1/2) 
Physics
A 900 W toaster operates for 2.50 minutes. How much energy does it use? 
physics with algebra
what is the area, and its approximate uncertainty, of a square of side 3.1x10^4 cm? 
physics
A car accelerates from rest at 2.10 m/s2. a. What is the velocity at the end of 4.0 s? b. What is the displacement after 4.0 s? 
Physics
When an object is moving at a normal speed, is it's weight larger than when it's stationary? 
Physics
What’s the specific heat of a material if it takes 6.5 kJ to increase the temperature of a 1.8 kg sample by 6.4 ∘C ? 
physics
Why air pressure in a car tyre increases during driving? 
Physics
Does a ball that is rolled on a floor speed up before slowing down? 
Physics
C:\Users\Kristi\Pictures\Screenshots\Screenshot (691).png 
Physics
When striking, the pike, a predatory fish, can accelerate from rest to a speed of 3.6 m/s in 0.11 s . 
Physics
An adventurous aardvark arduously ambles from (3.0, 2.0) m to (−4.0, −2.0) m. What is the displacement in polar coordinates? 
Physics
METEOR SHOWER (Acceleration or Not) PLease choose the correct answer. 
Physics
What’s the deceleration of a juggernaut to stop from 45m/s by constantly decelerating at 9m/s 2(squared) ? 
Physics
Find the displacement in cubic meters of a boat weighing 4710 N. 
physics
An electron experiences an electric force of 0.70 nN . What’s the field strength at its location? 
physics
Athelet meseret defar runs at 10m/s. How long will take her to go? 
Physics
At what temperature, in degrees Celsius, is the speed of sound in air 341 m/s? 
Physics
If ∑ n=0 to inf of 3x^n/n! is a Taylor series that converges to f(x) for all real x, what is the value of f ''(0)? 
Physics
Does angular acceleration on a spinning disk increase centrifugal force? 
Physics
A 2200. Kg vehicle is traveling at 26 m/s what is the force needed to stop it in 21 seconds? 
Physics
An truck with a mass of 3500 kg travels with a velocity of 22.0 m/s. Find the momentum. 
physics
The xcomponent of an electric field vector E = (200 N/C, 45 deg) is ___N/C. 
physics
the number of waves of wavelength 6000 angstrom in a path of 2 cm in vacuum are 
Physics
Equation y=5 sin(3x4) determine the freguency,speed,period of waves 
physics
describe how the values of resisitivity determine the uses of material in industry ??? 
Physics
Please who can help me out. Derive the coefficient of surface tension for water