Part A: A car moves with an initial velocity of 28 m/s due north. Find the velocity of the car after 6.7 s if it’s acceleration is 1.4 m/s2 due north. Part b: find the velocity of the car after 6.7 s if it’s acceleration is 1.5 m/s2 due south.

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same

8.29 two streams containing pyridine and acetic acid at 25°c are mixed and fed into a heat exchanger. due to the heat-of-mixing effect, it is desired to reduce the temperature after mixing to 25°c using a stream of chilled ethylene glycol as indicated in the diagram. calculate the mass flow rate of ethylene glycol needed. the heat capacity of ethylene glycol at these conditions is approximately 2.8 kj/(kg k), and the enthalpy change of mixing (δmixh) is given below.

Aforce of 8,480 n is applied to a cart to accelerate it at a rate of 26.5 m/s2. what is the mass of the cart?