Which of these statements about mixtures is true? mixtures are made up of elements bonded together. elements and compounds are types of mixtures. pure substances are made up of mixtures combined in specific ratios. mixtures are classified based on the distribution of particles in them.

Ineed extreme for task 2. my student number is 571721. many to whoever solves this correctly, im in debt to you.

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?