Math/Physics
214,364 results, page 37

Physics (easy level)
What would a Potential energy to velocity^2 graph be? 
Physics
Who originally designed the planetary model of an atom? Bohr or Rutherford 
physics
Given three vectors a~=Ài~À4j~+2k~ , b~=3i~+2j~À2k~ , c~=2i~À3j~+k~ , calculate a~Á(b~c~) 
physics
At the end of a race a runner decelerates from a velocity of 7.00 m/s at a rate of 0.300 m/s2. 
Physics
Why does the volume of air bubble increase as it rises toward the surface? 
Physics
If Jenn walks at a speed of 1.75 m/s for a total of 3.0 minutes, how far has she travelled? 
physics
A vector has a magnitude of 18.0 cm and makes an angle of 103.0° with the positive xaxis. 
physics
Find the area enclosed by the curve y=sinx and the xaxis between x=0 and x=22/7 
physics
Find the area enclosed by the curve y=sinx and the xaxis between x=0 and x=22/7 
physics
Find the area enclosed by the curve y=sinx and the xaxis between x=0 and x=22/7 
physics
Find the area enclosed by the curve y=sinx and the xaxis between x=0 and x=22/7 
physics
Find the area enclosed by the curve y=sinx and the xaxis between x=0 and x=22/7 
physics
An 80kg astronaut has a weight of 120N. How many radii above the earth is he? 
physics
an electron (m= 9.11 x 10^31 kg) and a proton (m+ 1.6 x 10^27 kg) are separated by 1.0 x 10^10 m. what is the gravitation force between them? help please! 
Physics
If a 1.5V battery stores 5.0kj of energy,for how many minutes could it sustain a current of 1,2A? 
physics
find the impulse on a baqseball that is hit 80N of force in a time of 0.52 s 
Physics
Classify the following measurements as scalar of vector quantities. A.) 15 s B.) 4.2 m ( up) C.) 100 km/h (S) D.) 2.8 kg 
physics
Calulate the amount of substance io 120g of trioxocarbonate (iv)ion,co2 
physics
Calulate the amount of substance in 120g of trioxocarbonate (iv)ion,co2 
physics
a cannon fire a .453 kg shell with initial velocity vi=9m/s in the direction 50 
Physics
Find positions on the x axis for the charges Q1 = 1 C and Q2 = +3 C so that the electric field is zero at x = 0. 
Physics
I got 240mph by using a diagram but my lecture said i am wrong 
physics
if a proton and an electron are released when they 2.0 x 10^10 m apart, find the initial acceleration of each of them 
physics
What voltage is applied to the 5.00 µF capacitor of a heart defibrillator that stores 35.0 J of energy? In kv. 
physics
610 C passes through a flashlight in 0.510 h. What is the average current? 
Physics
How long in seconds does it take for a car accelerating at 3.5m/s2 to go from rest to 120km/hr 
Physics
what is the power dissipated in an ac circit in which current v=230sin(wt+90) and I=10sin(wt)...plz help me 
physics
The units of heat are equivalent to those of which one of the following quantities? 
Physics
How much work must be done on a 500kg car to accelerate it from 29km/hr to 112km/hr? 
physics
determine the magnitude of the centripetal force that acted on the whirling ball?? 
physics 11
Displacement i sgivenby x=2+3t+4t2. Find the value of instantaneous acceleration. 
Physics 11
Displacement is given by x=2+3t+4t². Find the value of instantaneous acceleration. 
physics
Why projectiles launched at complimentary angles have the same range? 
Physics
How can we find the resultant force if the mass and SPEED are given?? Help me please!! 
physics
how much energy is stored in a 9 volt battery rated at 10 a hour 
physics
Show that the average speed of a rabbit that runs a distance of 30 m in a time of 2 s is 15 m/s. 
Physics
What is the momentum of a wavelength= 0.015nm Xray photon? p= in kg*m/s Please help I am confused. Thank you. 
Physics H
What is the speed of light moving through a medium of index of refraction 2.45? 
Physics, Help me please,
What is the potential difference between Points A and B? E=100N/C AB=.2M degrees of 30 
physics
find the %error in the measurement of refractive index of glass. the values was 1.54,1.53,1.44,1.54,1.56& 1.45. 
physics
Caculate the work done when a force of 20N strecthes a spring by 50mm 
physics
if The magnitude of the nuclear spinangular momentum of a nuclei is 15 /2 units. Then what will be the value of I 
physics
if The magnitude of the nuclear spinangular momentum of a nuclei is 15 /2 units. Then what will be the value of I 
Physics
How much mechanical energy was lost during the ball's fall? 
sonogram physics
How much time is required to image a structure at 5cm.? 
physics please need help
If the period of an AC sine wave is 180 ms, the frequency is 
Physics
How far do you travel if you start at 5.6 m/s and slow down at 2.5 m/s until you stop? 
physics
how to show with the help of a model that resistivity of a conductor increases with increase in temperature? 
Physics
The pendulum is transported to another planet where the acceleration due to gravity is smaller. 
physics
what is the kinetic energy of 1,200kg roadster moving at a rate of 88km/hr? 
physics
What is the wavelength (m)of an earthquake that shakes you with a frequency of 11.5 Hz and gets to another city 85.0 km away in 12.0 s? 
physics
determine the pressure of a 20 lb force is applied to an area of 10 inch squared 
physics
determine the pressure of a 20 lb force is applied to an area of 10 inch squared 
physics
find the acceleration produced by a net force of 300.0 N on a mass of 0.75 kg. 
physics
If body is rotating 30r.p.m in clockwise what is angular velocity and it direction 
physics
how did nikola tesla change the world? and why students do not know about him and his inventions? 
Physics
if im plotting a graph: Time Squared vs Length What will be the unit of my gradient ? 
Physics
Your velocity changes from 50 m/s to the left to 10 m/a to the right in 15s, what is your average acceleration? 
physics
What would be the resultant vector with an angle of 30° with the +x axis and has a y component of 8.9 Newtons? 
physics
What would be the resultant vector with an angle of 30° with the +x axis and has a y component of 8.9 Newtons? 
Physics
A students adds two vectors with magnitude of 200 and 40 , what is the resultant ?! 
physics
. If the momentum of an object is tripled, its kinetic energy will change by what factor? 
physics
Show that the time for the voltage in the RC circuit to rise to (Vo/2) "halfmax" is t1/2 = T ln 2 
physics
Which of the following properties of a ball is conserved as it falls freely in a vacuum? 
Physics
Acoustics. How do engineers design buildings to reduce noise pollution? 
Physics
A 1400kg race car can go from 0 to 90km/h in 6.0s . What average power is required to do this? 
Physics
How to add vectors in terms of velocity by using vector chart 
Physics
Problem2AFor A=I+2j +5k and B=2j3k,find: a) The dot productA.B b) The angle between the A and B 
Physics
Why is warm water used for bathing during cold weather? 
PHYSICS
Why era traits/scientific characteristic important in the field of Science? 
PHYSICS
Why is a control setup being done in conducting an experiment? Give example. 
physics
true or false an object with a mass of 9.0 kg has an acceleration of 3 m/s. the force acting on it is 3n 
Physics Classical Mechanics
Thanks to everyone who helped me out. I got through. 
Physics
A rocket is fired with 9.37 km/hr, find the maximum altitude. (no air resistance) 
physics
Find the total displacement of a mouse that travels 1.0m north and then 0.8m south. 
physics
Find an expression for the energy densityin terms of stress and strain. 
Physics
how much energy is required to change 40 g of ice at 10 C to steam at 110 C? 
physics
What is the maximum amplitude of the resultant waves at the position of 2 . 7 m along the x axis? 
Physics
You throw a beanbag in the air and catch it 3.3 seconds later. How high did it go? 
Physics
A piece of metal has a mass of 85 cg and a volume of 450L. What is it's density in g/cm3? 
physics
If you double the radius of a sphere, its volume increases by what factor? A. 8 B. 6 C. 2 D. 4 I thought maybe C.2 or D.4 
physics
An astronaut shoots you in space given that the bullet is weightless, could it injure you? 
physics
Complete the following nuclear reaction: ^16,v8 O + ^4, v2 He → ________ + ^19, v10 Ne 1p 1n 2H 3H 
Physics
convert 220 degree into radians show work. 
Physics 1
What is the rotational kinetic energy of the Earth in its orbit around the sun? 
physics
why salt mixed in water before keeping egg and boil it? 
physics
explain why we sweat when it is hot? How does it help us? In terms of heat and temperature what happens 
AP Physics B
how much heat does it take to melt 4.2 kg of ice at 0c? Answer in kcal 
physics
find the moment of inertia of the earth. Radius is 6,000 km and mass is 6 x 10^24 kg 
Physics
How long would the year be if the distince of the earth from the sun where 20% more? 
Physics
Resolve a force of 7.5N acting at an angle 40 to its horizontal an vertical components. 
physics
How much heat is added to 10.5 g of ice at 20.0°C to convert it to steam at 123.5°C? 
Physics
Am i correct? If a 10.0 kW device pulls 20.0 A of current, what voltage exists across it? A. 5.0 *10^0 V B. 5.0 *10^1 V C. 5.0 *10^2 V D. 5.0 *10^3 V < 
Physics
Explanation of twin paradox in regards to special relativity theory. 
physics
How many electrons pass through a lamp in 3 minutes.If the current is 300 ma? 
physics
The escape velocity on the moon is: a) 5.64x10^6 m/s b) 1.68x10^3 c) 160 m/s d) 2.38x10^3 m/s 
physics
If Zulfiqar fold this colored paper as shown in the image, which cube will he get? A C B D 
physics
The time required for a car to reach 28.5 m/s from rest, accelerating at 3.70 m/s2 is __________ . 
physics
When an object travelling at 12.7 m/s [E] speeds up to a velocity of 21.5 m/s [E] in 3.45 s, the magnitude of the acceleration is __________m/s2. 
Physics
At what distance from the earth's surface will a mass of 40.0 kg be just 385.0 in weight?