help please!!
From the following images shown, classify the interactions that occur and say between which bodies, according to the following criteria:
a) Contact forces
b) Non-contact forces

Work out the lengths of sides a and b.Give your answers to 1 decimal place.17 cmaab8 cm12 cm5 cm There is a bag with only red marbles and blue marbles.The probability of randomly choosing a blue marble is 78.There are 56 marbles in total in the bag and each is equally likely to be chosen.Work out how many red marbles there must be. Calculate the amount of heat required to completely sublime 55.0 g of solid dry ice CO2 at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3 kj mol The value of H for the reaction below is -6535 kJ. ________ kJ of heat are released in the combustion of 16.0 g of C6H6 (l)?2C6H6 (l) + 15O2 (g) 12CO2 (g) + 6H2O (l) Write the electron configuration for Gold (Au). You may choose to write it in the long form or in the noble gas configuration form (shortcut). what is the mean mark of 847 30? Please help me on this question helpppppppppppppppppppppppppppppppppp!!!!!!!!! We dont dance / arent dancing at school today. Boys dont wear / arent wearing pink T-shirts. Alpha wolves track the prey.The prey is also hunted by alpha wolves.Alpha wolves decide where to build the pack's den.Producing pups for the pack is also something alpha wolves do.Directions Combine the sentences into one sentence that includes a list. You may change the form of the action words and remove unnecessary words. x+y=132x-y=5solve using any method Cho tam gic ABC c AB =4cm ,AC=5cm,BC=6cm.Trn tia i ca tia AB ly im D sao cho AD=5cm a) chng minh : tam gic ABC ng dng vi tam gic CBD b) tnh CD A flywheel in a motor is spinning at 510 rpm when a power failure suddenly occurs. The flywheel has mass 40.0 kg and diameter 75.0 cm . The power is off for 40.0 s , and during this time the flywheel slows down uniformly due to friction in its axle bearings. During the time the power is off, the flywheel makes 210 complete revolutionsAt what rate is the flywheel spinning when the power comes back on(in rpm) Part AWhose scatter plot matches the data, and what is wrong with the incorrect scatter plot? The food calorie, equal to 4186 J, is a measure of how much energy is released when food is metabolized by the body. A certain brand of fruit-and-cereal bar contains 160 food calories per bar.Part AIf a 67.0 kg hiker eats one of these bars, how high a mountain must he climb to "work off" the calories, assuming that all the food energy goes only into increasing gravitational potential energy?Express your answer in meters.Part BIf, as is typical, only 20.0 % of the food calories go into mechanical energy, what would be the answer to Part A? (Note: In this and all other problems, we are assuming that 100% of the food calories that are eaten are absorbed and used by the body. This is actually not true. A person's "metabolic efficiency" is the percentage of calories eaten that are actually used; the rest are eliminated by the body. Metabolic efficiency varies considerably from person to person.)Express your answer in meters. Why did Lord John want to capture a Pterodactyl to take back to England? Shape a and shape b are each made from four identical sqaures the perimeter of shape a is 56 cm work out shape b can the angles with measures 80o , 55o and 65o form angles on a line change into interrogative.1.It is snowing.was it raining?Is it raining?Does it rain?did it rain? Which passage most clearly contains imagery?O A. "Don't say another word!" Gina shouted.B. The odor of rotten eggs wafted from within.C. He suspected. He knew. He saw. He smiled.D. First, call our hotline. Next, work out a plan.SUBM