Questions Answered

jaderbrown:
Which of the following statements or expressions is most nearly associated with Kepler's Second Law of Planetary Motion?
P2 = A3
…
 updated 9 months ago
 2 replies
 1 Medal

salini:
if 4g of oxygen diffuses through a hole how much hydrogen would have diffused under identical condition?
 updated 10 months ago
 2 replies
 No Medals Yet

rayray123:
Which of the following describes why lightening rods are put on top of houses?
…
 updated 10 months ago
 5 replies
 1 Medal

Equestiem:
Tierra is playing in her backyard when she hears her friend calling out to her. She can't see her friend but can hear her friend's voice. Wh…
 updated 10 months ago
 1 reply
 1 Medal

KellyThomas:
I have a projectile problem with known launch velocity, and target coordinates. How to I determine correct launch angle?
Full Text: If a…
 updated 11 months ago
 12 replies
 1 Medal

Directrix:
How did you first find OpenStudy?
 updated 5 months ago
 59 replies
 20 Medals

dave0616:
n a "worstcase" design scenario, a 2000kg elevator with broken cables is falling at 4.00 m/s when it first contacts a cushioning spring at…
 updated one year ago
 7 replies
 1 Medal

salini:
LIMIT QUESTION
 updated one year ago
 25 replies
 3 Medals

RolyPoly:
Voltage: What is the voltage across A and B?
 updated one year ago
 15 replies
 2 Medals

DLS:
Momentum of a body is doubled.
%Change in KE=?
 updated one year ago
 22 replies
 4 Medals

jores:
A 100kg cannon at rest contains a 10 kg cannon ball, when fired the ball leaves the cannon with the spend of the 90m/s. what is the recoil s…
 updated one year ago
 3 replies
 1 Medal

salini:
integral
…
 updated one year ago
 56 replies
 1 Medal

salini:
A cube of ice 2 cm on a side is floating in a glass of water. You observe that the top of the ice is 0.166 cm above the surface of the water…
 updated one year ago
 2 replies
 1 Medal

pacman1994:
A car moving with a velocity of 20 meters/second has
1.8 * 105 joules of kinetic energy. What is the mass of the car
 updated one year ago
 2 replies
 3 Medals

salini:
is the answer to this question o?
attached file
 updated one year ago
 7 replies
 1 Medal

harsh314:
a second's pendulum is inside a car, the car is moving in a circle with radius 10m and velocity 10m/s find the time period of small oscillat…
 updated one year ago
 19 replies
 2 Medals

quarkine:
When we bring charge from infinity to free space,the work done is said to be zero.but by bringing the charge we are actually creating the el…
 updated 8 months ago
 10 replies
 2 Medals

priyanthi.amarasinghe:
A flat composite plate is made of two layers of aluminum and steel of 5cm and 2cm thickness respectively. the thermal conductivity of alumin…
 updated one year ago
 1 reply
 No Medals Yet

salini:
in the online exam for jee main do we have timer for each question and can we go back and change an option that we gave as answer already in…
 updated one year ago
 5 replies
 2 Medals

RamyaMurugesan:
when an object falls in air,the resistance by the air depends on the weight of the object. Is it right?
 updated one year ago
 7 replies
 No Medals Yet

fakh2r:
hi
can u help me, please
…
 updated one year ago
 8 replies
 No Medals Yet

Youngster:
Please Help!
Consider two uniform spherical planets of equal density but unequal radius. Which of the following quantities is the same for…
 updated one year ago
 5 replies
 2 Medals

Shadowys:
Does Pascal's law only hold for fluids that obey the Bernoulli's Principle?
 updated one year ago
 8 replies
 No Medals Yet

kbrandon:
Two physics books, A and B, are placed on top of each other on a table. Book A's mass is 2 kg and book B's mass is 1 kg. Book A is place on …
 updated one year ago
 2 replies
 No Medals Yet

boy.janooni.5:
what is the difference in heat and temperature?
…
 updated one year ago
 2 replies
 1 Medal

rvgupta:
A hunter aims his gun and fires a bullet directly at a monkey sitting on a tree at the instant the bullet leaves the barrel of the gun. Will…
 updated one year ago
 5 replies
 1 Medal

andriod09:
Here is a riddle for everyone the first one to answer correctly will get a medal.
 updated one year ago
 4 replies
 3 Medals

salini:
how to simplify this binomial expression?
 updated one year ago
 23 replies
 2 Medals

salini:
how did this expansion become like this?
 updated one year ago
 9 replies
 1 Medal

darkwhale:
Astronauts on our moon must function with an acceleration due to gravity of 0.170g . If an astronaut can throw a certain wrench 12.0m vertic…
 updated one year ago
 14 replies
 No Medals Yet
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