Electromagnets are used in many different places, with many different strengths. List two ways you think an electromagnet can be made stronger.

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.

Calculate the volume of this regular solid. what is the volume of the cone? round your answer to the nearest hundredth