Looking for: FBD, Proper given, proper required, state laws being used, starting equations, rearranged equation, unit analysis, proper final answer A mother is pulling a sled at constant velocity by means of a rope at 37o . The tension on the rope is 120 N. Mass of children plus sled is 55 kg. The mother has a mass of 61 kg. a) Draw FBD for the sled with the kids as one object b) Draw FBD for the mother c) Find the normal force on the sled and on the mother d) Find the kinetic friction acting on the sled and the static friction acting on the mother e) Find the coefficient of kinetic friction for the sled

1. how much energy is needed to raise the temperature of 40.0 g of argon from 25c to 40c? the specific heat capacity of argon is 0.520 j/(g·k) 2a. 23.0 ml of 0.100 m hcl (standard) are added from a buret to neutralize 50.0 ml of an unknown basic solution. 2b. if the oh- produced in the previous reaction came from ca(oh)2, then what is the molarity of the ca(oh)2? 3.calculate the new freezing-point of a solution when 60.5 grams of cacl2 solute is dissolved in 0.612 kg of water. 4. what is the maximum number of moles of alcl3 that can be produced from 5.0 mol al and 6.0 mol cl2? 5. a sample of oxygen gas has a volume of 150 ml when its pressure is 0.923 atm. if the pressure is increased to 0.987 atm and the temperature remains constant, what will the new volume be? 6. nitrogen gas in a closed container at a temperature of 100.0 oc and 3.0 atm is heated to 300 oc. what is the pressure of the gas at the higher temperature?

A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?

You can decrease the resistance of a length of wire by