105 g of 35 °C water is heated until it's temperature is 100 °C. If the specific heat of water is 4.184 J/g x °C, calculate the amount of heat energy needed to cause this rise in
Temperature.

1) a child holds two dogs on two separate leads. the dogs are pulling in different directions. one is pulling a force of 20n north and one is pulling 15n eastwards. calculate the resultant force on the child. state the direction. (use the parallelogram of forces) 2) a force of 20n acts horizontally on an object. a second force of 5n acts at 60 degrees to the first one. calculate the resultant force. worth 20 points, need answers asap with method you x