# Physical Science

All new and solved questions in Physical Science category

##### What is the dependent variable in an experimentthat shows how the volume of gas changes with changes in temperture
what is the dependent variable in an experimentthat shows how the volume of gas changes with changes in temperture?...
##### A 0.50-KG BLOCK INITIANALLY ON A REST ON A FRICTIONLESS HORIZONTAL SURFACE IS ACTED UPON BY A FORCE OF 8.0N FOR A DISTANCE OF 4.0M
A 0.50-KG BLOCK INITIANALLY ON A REST ON A FRICTIONLESS HORIZONTAL SURFACE IS ACTED UPON BY A FORCE OF 8.0N FOR A DISTANCE OF 4.0M. HOW MUCH KINETIC ENERGY DOES THE BLOCK GAIN?...
##### The only force acting on a satellite in its orbit around Earth is the force of gravity from Earth
The only force acting on a satellite in its orbit around Earth is the force of gravity from Earth. Why does a satellite not fall down?...
##### What is the temperature of a winter day at the north pol (-40.0 C)in fahrenheit and kelvins
what is the temperature of a winter dayat the north pol (-40.0 C)in fahrenheit and kelvins?...
##### A boy throws a 4-kg pumpkin at 8 m/s to a 40-kg girl on roller skates, who catches it
A boy throws a 4-kg pumpkin at 8 m/s to a 40-kg girl on roller skates, who catches it. At what speed does the girl then move backward?...
##### Which one of these statements is true about Copernicus
Which one of these statements is true about Copernicus? a. His model included planetary orbits that were circular. b. He believed that Ptolemy's ideas about the shape of orbits were correct c. His model could not account for retrograde motion of Mars. d. His model of the universe placed the ...
##### A body falls from rest for 5seconds calculate its velocity-time graph of its motion (from t= 0s to t=5s)
A body falls from rest for 5seconds calculate its velocity-time graph of its motion (from t= 0s to t=5s)...
##### A block is dragged at constant velocity in a straight-line path across a level surface by a force of 6N
A block is dragged at constant velocity in a straight-line path across a level surface by a force of 6N. What is the force of friction between the block and the surface?...
##### Calculating the total energy required to break NH3 bond
Calculating the total energy required to break NH3 bond?...
##### What are the uses of CaCo3+2HCl=CaCl2+CO2+H2O
what are the uses of CaCo3+2HCl=CaCl2+CO2+H2O?...
##### If potential energy of an electron in ground state is -13.6 eV
If potential energy of an electron in ground state is -13.6 eV. The energy of next higher state is:a) -27.2 eVb) -6.8 eVc) -3.4 eVd) none of theseplease help me. Is it B?If I understand you question, yes, B is the correct answer. The energy of the levels are negative and go to zero when the electron...
##### A satellite that is 4175 miles from the center of the earth, orbits with a period of 90 minutes
A satellite that is 4175 miles from the center of the earth, orbits with a period of 90 minutes. What is its centripetal acceleration?...
##### What is the purpose of the layer of copper or aluminum on the bottom of a piece of stainless steel cookware
What is the purpose of the layer of copper or aluminum on the bottom of a piece of stainless steel cookware?...
##### If a block of wood drooped from a tall building has attained a velocity of 78.4 m/s, how long has it been falling
if a block of wood drooped from a tall building has attained a velocity of 78.4 m/s, how long has it been falling?...
##### All of the following are true about water except that it:
all of the following are true about water except that it:...
##### A 6.2 "kilo" bag of sugar is on a counter
A 6.2 "kilo" bag of sugar is on a counter. How much work is required to put the bag on a shelf a distance of 0.41 m above the counter...