What is the mathematic expression of the relationship between x and t?

In a simple series circuit, why does the bulb light up when you close the switch

A wave pulse traveling to the right along a thin cord reaches a discontinuity where the rope becomes thicker and heavier.

n outer space, a constant net force with a magnitude of 140 N is exerted on a 32.5 kg probe initially at rest. A) What acceleration do es this force produce? B) How far does the probe travel in 10 s?

Select all that apply to electrons and energy levels. - Scientists have not yet determined exactly why electrons do not collapse into the nucleus. - Electrons cannot be located between levels except when they are in the process of moving.

A windmill (wind turbine) is an example of a (n). A) generator. B) resistor. C) insulator. D) motor.

When a charged object polarized another why is there an attraction?

Why is Portland, Oregon a good city for biking

During which step of the scientific method do scientists usually record information from which they can draw a conclusion

Which of the following is true concerning nuclear fusion? a. it generally releases more heat than nuclear fission. b. it involves the splitting of a nucleus into smaller fragments. c. it can occur at room temperature. d. all of the above

dart with a mass of 50 g is thrown at 15 m/s and sticks into a 100-g apple hanging on a string. What is the velocity of the dart and apple just after the dart is embedded