An object of mass 20 kg is travelling at a constant speed of 6.0ms! It collides with an object of mass 12 kg travelling at a constant speed of 15 ms in the opposite
direction. The objects stick together.
What is the speed of the objects immediately after the collision?
А 1.9 ms -1
B 9.0 ms -1
C 9.4 ms
D 21ms-1

To protect all four receptacles on a branch circuit that surrounds a swimming pool, you would install which of the following configurations? a. gfci feed-through receptacle at the end of the load's circuit b. gfci-terminated receptacle at the beginning of the load's circuit c. gfci feed-through receptacle at the beginning of the load's circuit and the other receptacles connected to the load side of that receptacle d. gfci-terminated receptacle at each end of the load's circuit

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

The current in a hair dryer measures 11 amps. the resistance of the hair dryer is 12 ohms. what is the voltage?unit: