the following statements show contact force, except _____
a. closing your room's door
b. pushing your desk
c. shooting a ball on the floor using a rope
d. pulling a 10kg box on the floor using a rope​

Jacob has a headache. He can't stand long lists. "Can you repeat that again?" he asks. "It's easy. Name a number that is greater than 10, less than 20, is a multiple of 7, and FINALLY is a factor of 42," Replies Eric. please help need asap Nick is so excited to Trick-or-Treat, he RUNS down the street to the house that has the BIG candy bars! He ran 203 meters. It took him 40 seconds to arrive at the "big candy bar" house. What was his average speed?Help- I don't know how to answer this science question (yes, it's science/physics. ) Which is the correct word equation for photosynthesis? * why do people continue to get sick with the common cold even after multiple bouts with this disease? Find the equation of the line passing through the following : (-1;6) and (-3;0)Please help... Given that 2x9y=11Find y when x=7 3x + 3y = 9-3x + 2y = 1 How do older generations view social media? good and bad waywrite in paragraph Azad wants to Buy a book he has 25,000 dinars which is 9000 dinars less than she needs does the book cost 34,000 Dinars or 16,000 dinars Which statement best explains if the graph correctly represents the proportional relationship y = 2x? A coordinate plane is shown. Points are graphed at negative 2 and 4 and negative 1 and 2. The points are joined by a line. It does not, the points shown would not be part of y = 2x. It does not, proportions cannot be represented on a graph. It does, all proportions can be shown on a graph of this line. It does, the points shown on the line would be part of y = 2x. Describe and correct the error in finding the tenth term of the arithmetic sequence 4, 12, 20, 28.(correct the error below!)first term =4 common difference =8tenth term =4 +10(8) = 84 Potassium chlorate gives Potassium chloride+OxygenFind the Balancing Chemical Equation for the above Which is a similar theme in both "The Stag at the Pool" and "Hans in Luck"? O A. The things we think are valuable sometimes turn out not to be valuable after all. 0 B. It is important to know whom we can trust and whom we cannot O C. By working hard, we will end up with possessions that will make us feel successful. 0 D. The best things come in small packages. A live load on a house includes theA.Weight of snow or rainB.FurnishingsC.Pressure of the earth against the foundationD.Built-in cabinets 4x 5y = 15m=b=(I need to graph the linner equation) simplify by combining like terms 3k-2k Aaaaaaaaaaaaaaaaaaaaaaa At a certain theater 4 adult tickets and 2 children's tickets cost$36.50. Three adult tickets and 5 children's tickets cost $38.75. Whichsystem of equations could be used to determine the cost of one adultticket, a, and one child's ticket, c?A. 4a +2c= 36.503a + 5c = 38.75B. 7a+ 7 = 14a+b= 75.2C. 7a = 36.505a + 7c = 38.75D. 4a + 2c = 38.75 + 5c = 36.50And how much is an adult ticket?how much is an child ticket? Who was the leader of France at the time of the purchase