A train travels 90 kilometers in 1 hour, and then 82 kilometers in 5 hours. What is it's average speed?

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Shaun is 68 miles away from Keegan. They are traveling towards each other. If Keegan travels 7 mph faster than Shaun and they meet after 4 hours, how fast was each traveling?

Which of the following will increase the strength of a copper electromagnet? O A. Decreasing the current O B. Pulsing the current O C. Using aluminum instead o O D. Wrapping the copper wire around an iron nail O E. Adding more loops to the wire

A 200-kg steel part is resting on a thin film of oil on a concrete floor. The oil is a Newtonian fluid and has a viscosity of μ = 6.52*10-2 N⋅s/m2. The film thickness is d = 0.5 mm.

Which method of separation can be used for a heterogeneous mixture? A. by distillation B. by densities C. by chromatography D. by acidification

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What is the transfer of heat through a solid as a result of molecular action called? radiation convection conduction magnetism?

Explain the process of synaptic transmission, beginning with the neurotransmitters at the axon terminal of the presynaptic cell and ending with the impulse being sent down the postsynaptic cell.

Which of the following is a false statement about dispersion forces? View Available Hint (s) Which of the following is a false statement about dispersion forces?

Which choice defines AC and DC correctly? In AC, electrons moving in one direction. In DC, they move in one direction and then in the other direction. In DC, electrons move in only one direction.