1,302 Answered Questions for the topic physical science

Physical Science Science Math Help Asap Please

06/29/18

Physical Science Math
A car weighs 15,000 N and its tires are inflated to a pressure of 190,000 Pa. How large is the area of the car's tires that are in contact with the road? Please show work.
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Physical Science Gas Laws

06/28/18

Gas Laws Math
6. A container holding a gas at 500atm is held at 298K (room temperature). What is the pressure of the gas in the container when it is heated to 1000K? 7. Why is the situation in #6 dangerous?
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Physical Science Gas Laws

06/28/18

Gas Laws Math
The pressure of a gas trapped inside a 10ml test tubeis originally 1atm. When the pressure on the tube is increased to 5atm, what will be the volume of gas trapped inside the cube?
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Physical Science Gas Laws

06/28/18

Gas Laws Math
When 432L of Krypton gas is heated from 320K to 570K, it expands. What is the final volume of the gas?
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Physical Science Gas Laws

06/28/18

Gas Laws Math
A balloon is heated and expands to 500ml when it is heated to 490K. If the original temperature of the balloon was 300K, what was the original volume?
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Physical Science Gas Laws

06/28/18

Gas Laws Math
A pressure cooker is used to heat up food quickly. If the air in a pressure cooker is initially at 450K under a pressure of 100kPa, what will the pressure be when the temperature is increased to 600K? more
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Physical Science Gas Laws

06/21/18

Physical Science Gas laws
500 ml of argon is held in a container under 20 atm of pressure. What will the volume of the gas be if the pressure is decreased to 14 atm
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Physical Science

06/20/18

Calcium has a charge of +2. The chart lists the charges of different ions. Which are possible equations for an ionic compound with calcium?
i dont understand this its about calcium and has a change of +2 this chart lists the differnts   
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Physical Science

06/14/18

Hydrogen is the second most abundant gas in the atmosphere
It’s in physical science  and it is also an true or false question 
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Physical Science

06/03/18

If the DNA strand in a molecule could be stretched out, it would have a length on the order of 2.0 m. What would this be in feet?
Need answer to be in ft and inches
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Physical Science

05/29/18

How many liters of oxygen gas at STP are needed to combust 12.0 g of propane according to the reaction C3H8 + O2 ---> CO2 + H2O
I need help with this question and I have no idea where to start
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Physical Science

05/23/18

6.0 g of glass heated from 17c to 47c.how much energy was used to heat the glass?(specific heat capacity of glass is 0.664 j/g
I need help
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Physical Science

05/21/18

a train of waves is moving at a speed of 30 m/s the frequency of the waves is 10 Hz. what is the wavelength
Need help 
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Physical Science

05/21/18

what is the mass of an object if a force of 34 N produces an acceleration of 4 m/s
need help
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Physical Science

05/15/18

Downhill skiers race over a course that's 3,500 m long in 2 minutes, 10 seconds. What is their approximate average speed for this course?
i dont get it
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Physical Science

05/10/18

if the battery is a 9-volt battery and the resistance in the circuit is 18 ohm's how much current is flowing through the circuit
can someone help me with the last problems
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Physical Science

05/10/18

if the battery is a 9-volt battery and the resistance in the circuit is 18 ohm's how much current is flowing through the circuit
i need help with these last 2 questions 
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Physical Science Chemistry

04/25/18

N2+H2=NH3 what properties does it contain
This topic is about physical science and I need help answering this question
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Physical Science

04/22/18

What is the correct chemical formula for dinitrogen tetroxide?
i honestly don’t know the answer please help
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Physical Science

04/19/18

If its volume is increased by 20% and its absolute temperature is decreased by 12%, what is the percent change to its pressure?
what is the kinetic theory of the question? I want to know the percent of to its pressure of gas.
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Physical Science

04/05/18

What’s the value of 1,152 BTU in joules
What’s the valur of 1,152 BTU in joules 
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04/03/18

What is the heat capacity of a 30.0 gram sample of matter that cools off to 25c from 100c when 100.0 grams of 20c water are added to it?
Don't know how to start it please help.
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04/03/18

How much energy needs to be removed from 25 g of 110 °C degree steam to turn it into -10 °C ice?
I am stuck on this question please help.
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Physical Science Math Help

03/20/18

what would be the square root of pi
 how would i do it
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Physical Science

03/20/18

compare and contrast how NH3 and Ca(OH)2 form OH- ions in water.
NH3 and Ca(OH)2 form OH- ions in water  
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