Answers edited by Gaya3

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• What is the number of real roots of the giving equation?
  
• Question #3d103
  
• How does gravity affect the life cycle of stars? How does it start and end the life of a massive star?
  
• Question #ec927
  
• What conditions make #DeltaG# always positive?
  
• Question #51272
  
• Question #af17e
  
• A container has a volume of #24 L# and holds #32 mol# of gas. If the container is compressed such that its new volume is #7 L#, how many moles of gas must be released from the container to maintain a constant temperature and pressure?
  
• Which molecule is involved in transport of oxygen?
  
• All external forces on the body cancel out. Which statement must be correct?
  
• How do you solve #30-36d=24#?
  
• How do you simplify #-( 3a - 7) + 3#?
  
• Question #85239
  
• Question #a226b
  
• Question #06e64
  
• Question #b8a58
  
• Question #9f748
  
• A 70.0 kg sailor climbs a 28.3 m rope ladder at an angle of 45.0° with the mast. How much work did he do?
  
• Question #7711a
  
• What is the compound interest on a three-year, #$100.00# loan at a #10%# annual interest rate?
  
• How do you solve the equation #abs(1-2x)=9#?
  
• The half-life of cobalt-60 is 5.3 years. How many years will it take for 1/4 of the original amount of coblat-60 to remain?
  
• What is the orthocenter of a triangle with corners at #(3 ,1 )#, #(1 ,6 )#, and (2 ,2 )#?
  
• What pressure is exerted by a #8,60*mol# quantity of gas at a temperature of #320*K#, that is confined to a #16.0*L# volume?
  
• Question #ce4ab
  
• Question #5ca1d
  
• Question #443d6
  
• Question #bd770
  
• Question #f6828
  
• What is the absolute magnitude of a type 1 cepheid variable star which has a period of 30 days?
  
• How do you use the graph to solve #0=x^2+2x-7#?
  
• Question #95582
  
• Question #9be26
  
• Question #f7512
  
• How do you solve for parallax?
  
• A charge of #5 C# is at #(-7, 1 )# and a charge of #-3 C# is at #(8, -3) #. If both coordinates are in meters, what is the force between the charges?
  
• How do you evaluate #\frac { 2} { 3} \times \frac { 5} { 8} \times \frac { 6} { 7}#?
  
• Question #a64de
  
• Question #a1dc8
  
• Question #aa1f0
  
• Question #0205d
  
• How far does a horse travel if it gallops at an average speed of 25 km/h for 30 minutes?
  
• Question #f7924
  
• Why CaO is added in water body before pisciculture?
  
• A .0250 kg sock spins in a dryer of radius .225 m once every .304 seconds. How much centripetal force acts on the sock?
  
• How many bonds do atoms make?
  
• If the intensity of a sound from one source is 100 times that of another sound, how much more is the decibel level of the louder sound than the softer one?
  
• Can someone help me calculate the speed of this please? Thank you very much!
  
• Question #4ee27
  
• An object is at rest at #(7 ,4 ,2 )# and constantly accelerates at a rate of #4/5 m/s# as it moves to point B. If point B is at #(3 ,6 ,9 )#, how long will it take for the object to reach point B? Assume that all coordinates are in meters.
  
• Question #36f26
  
• What is (i) the molar mass of #"lead nitrate"#, and (ii), the molar quantity of a #42.65*g# mass of this material?
  
• If the circumference of a circle is half the area, what is the radius of the circle?
  
• Question #438b5
  
• Describe how a satellite is put into orbit around Earth?
  
• Question #3ee3e
  
• An object with a mass of #150 g# is dropped into #500 mL# of water at #0^@C#. If the object cools by #72 ^@C# and the water warms by #3 ^@C#, what is the specific heat of the material that the object is made of?
  
• Question #6c394
  
• What is the difference between a doppler redshift and a cosmological redshift?
  
• Question #76314
  
• What is #(root3(a^2b^2)) sqrt(a^2b^3)# in simplified radical form?
  
• Question #ca72d
  
• How do you find the quotient of #(2y^4-3y^2+1)div(y-1)# using long division?
  
• Question #11b39
  
• How do you simplify #(x- 2) ( x + 9) #?
  
• Question #f7297
  
• Question #d1dd0
  
• What is the Cartesian form of #(-3,(-7pi)/8)#?
  
• Question #177d8
  
• What makes some metals magnetic, and why are there only a few metal elements attracted to magnets?
  
• What is the equation of the line that passes through points #(\frac { 1} { 2} ,\frac { 1} { 3} ) and ( \frac { 1} { 14} ,\frac { 11} { 14} )#?
  
• Question #95639
  
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