08/27/16

Two Rubber Ball Collision Physics Questions
A rubber ball is shot straight up from the ground with speed v0. Simultaneously, a second rubber ball at height h directly above the first ball is dropped from rest.   1. At what height above the... more
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08/26/16

electric field
What is the electric field at the centre of hemisphere of radius r and surface charge density as k C/m2
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08/26/16

CAN NON LIVING OBJECTS EXERTS A FORCE IF YES GIVE TWO EXAMPLES
FORCE AND LAWS OF MOTION
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08/26/16

A CONSTANT FORCE ACTS ON AN OBJECT OF MASS 5KG FOR A DURATION OF 2 SEC .IT INCREASES THE OBJECTS VELOCITY FROM 3M/S TO 7M/S .FIND THE FORCE APPLIED
FORCE AND LAWS OF MOTION CLASS-9TH  CBSE BOARD DELHI INDIA
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08/26/16

a car is sitting at a stop sign. The car then goes and accelerates at 4.5 m/s^2 for 4s. How fast is the car going at the end of the 4s.
this is phsyical sceience 
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08/26/16

a planet has mass five times of earth and radius three times that of earth .calculate its acceleration due to gravity ,if value of g on earth is 10m/s^2
GRAVITATION  CHAPTER - CLASS 9 
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08/26/16

electric potential
Consider a uniformly non conducting circular disc . Surface charge density = p and radius of disc = a . Find electric potential at any point on the circurmference and at the centre
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08/26/16

work performed on a charge
A solid non conducting hemisphere of radius R has a uniformly distributed positive charge of density t per unit volume . A negatively charge q is transferred from centre of its base to infinity .... more
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08/25/16

A boat enters the harbor at 14.1 m/s. Call this the positive direction. It needs to come to rest near the docks to begin docking. It is 62 m to the docking area
acceleration physics question 
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08/25/16

A boat enters the harbor at 14.1 m/s. Call this the positive direction. It needs to come to rest near the docks to begin docking. It is 62 m to the docking area
acceleration equation 
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08/25/16

A boat accelerates from 17.2 m/s with a rate of 1.3 m/s2 for a time of 5.4 s. What is the final velocity of this boat?
 Physics velocity equation 
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08/25/16

Convert 8 millimeters to fluid ounces
How to find the answer
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08/25/16

Calculate the amount of heat (in kJ) required to vaporize 2.58 kg of water at its boiling point.
This is an extra practice question in my book that is not required, but i just want to understand it! I worked it out and got 5827 kJ. Is this right? The answer is not in the book.
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08/24/16

If 4g of oxygen diffuse through a very narrow hole how much hydrogen would have diffused under identical conditions
What is answer in a different numerical method
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08/24/16

Sound energy is a form of what kind of energy?
It's for my high school
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08/24/16

Help finding Magnitude and Degrees
Find the magnitude and direction of the resultant of a 5-N force that acts at an angle of 37? clockwise from the +x axis, a 3-N force that acts at an angle of 180? clockwise from the +x axis, and a... more
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08/24/16

is the gravity of earth throughout the earth constant ??
if yes then how do we get acceleration as 9.81
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08/23/16

How far must a riding mower travel?
section of the yard is 68 feet wide and 104 feet to the street. Cut perpendicular to the street. Cutting width of mower is 36 inches. The mower overlaps exactly 6 inches per pass.
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08/23/16

There are 8 identical looking coins, one of these coins is counterfeit and known to be lighter than the others. What is the minimum number of weighings needed t
We can only use a two-pn balance scale
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08/23/16

Electron is given 1.5 times of energy req fo it to escape frm the atom. Find wavelength of the emitted photon
An electron in a hydrogen atom in its ground state absorbs the 1.5 times as much energy as the minimum required for it to escape from the atom. What is the wavelength of the emitted photon
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Emf

08/20/16

induced emf
A infinite long wire carrying a current I=ie-t . Where t is the time. At a distace d from the wire and centre of rectangle's centre , a conducting rectangle (a x b) frame is kept . Find the induced... more
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08/20/16

four charges equal to -Q are placed at the four corners of a square and a charge q is at its center.if the system is in equilibrium ,the value of q is?
please answer thes question fast............................
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08/18/16

Is a balls ability to bounce several times affected by the height from which it is dropped
Hypothesis
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08/18/16

did the articles of confederation established a strong federal government?
Please help
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08/18/16

Need help for this question!
A cylindrical can has a base radius of 3.4 cm.It contains a certain amount of water such that whena sphere is placed inside the can, the water justcovers the sphere. If the sphere fits exactly... more
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