7. Con respecto a la propagación de las ondas electromagnéticas, es correcto afirmar que I) pueden viajar en el vacío. II) producen oscilación de las partículas al desplazarse por un medio material. III) no se propagan en medios materiales. * A) Solo I
B) Solo II
C) Solo III
D) Solo I y II
E) Solo I y III

Awheel rotates without friction about a stationary horizontal axis at the center of the wheel. a constant tangential force equal to 82.0 n is applied to the rim of the wheel. the wheel has radius 0.150 m . starting from rest, the wheel has an angular speed of 12.8 rev/s after 3.88 s. what is the moment of inertia of the wheel?

In positive numbers less than 1, the zeros between the decimal point and non zero are significant

In the circuit shown below, with each bulb holding a resistance of 60 ohms, how many amps of current are flowing? express your number as a decimal.