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Questions in physics

[Answered] Calculate the resistance of a 50 m length of wire with a cross-sectional area of 0.01 square mm and a resistivity of [tex]5 \times 10^{-8}[/tex].

[Answered] Is hydroelectric energy inexhaustible?

[Answered] Compare and contrast area and volume.

[Answered] A magnifying glass is an example of which type of microscope?

[Answered] How does a refrigerator work?

[Answered] A 1700 kg 2006 Mustang GT can accelerate from rest to 100 km/h in a time of 5.0 s. Determine the net amount of work that must be done on the car to cause this acceleration. Show all work.

[Answered] A transformer has a primary coil with 600 turns and a secondary coil with 300 turns. If the output voltage is 320 volts, what is the input voltage? A. 8 volts B. 150 volts C. 640 volts D. 600 volts

[Answered] What pressure does a brick exert on the ground if it is resting on its largest face? - The brick weighs 25 N. - The dimensions of the brick are 0.19 m × 0.07 m × 0.095 m.

[Answered] A 4.5-newton object is placed in a tank of water. If the water exerts a force of 4.0 newtons on the object, will the object sink or float?

[Answered] Which expression can be used to convert 75 kilometers per hour to meters per minute?