Write a second equation so that the system has (1,3) as its only solutionAn air puck with a mass of 0.26 kg is tied to a string and moves at a constant speed in a circle of radius 1.2 m. The other end of the string goes through a hole in the air table and straight down to a suspended mass of 0.68 kg, which hangs at rest (Figure 8). Calculate the speed of the air puck.

Luke and carrie are driving down a straight section of the interstate at 70 mph in luke's new convertible. carrie is drinking a soda in the passenger seat. when she is done she tosses the bottle straight up in the air, just above the height of the car. what will happen to the bottle if air resistance is neglected? a. the bottle will land in carrie's lap. b. not enough information is given. c. the bottle will land on the interstate in front of the car. d. the bottle will land on the interstate behind the car.

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

Complete the statement about memory improvement. ( )involves organizing and breaking down information into easier groups to expand capacity. rehearsal is the verbal repetition of information. these techniques are especially important for the improvement of ( ) memory.