Aball a is thrown vertically upward from the top of a 28-m-high building with an initial velocity of 4 m/s. at the same instant another ball b is thrown upward from the ground with an initial velocity of 20 m/s. part a determine the height from the ground at which they pass. express your answer to three significant figures and include the appropriate units hvalue units submit request answer part b determine the time at which they pass express your answer to three significant figures and include the appropriate units

Remote controls rely on to carry signals and transmit information over short distances.

The electricity that is delivered to our homes from regional generating stations uses high voltage to increase the safety of transmitting electricity to keep the available power the same despite the low current to induce magnetic fields in the wires to increase the magnetic field produced by the current

Conceptualize notice how this problem differs from our previous discussion of gauss's law. the electric field due to point charges was discussed in the previous section. now we are considering the electric field due to a distribution of charge. we found the field for various distributions of charge in the chapter entitled electric fields by integrating over the distribution. this example demonstrates a difference from our discussions in the previous chapter. in this chapter, we find the electric field using law. categorize because the charge is distributed uniformly throughout the sphere, the charge distribution has spherical symmetry and we can apply gauss's law to find the field. analyze note that the following conditions can be used to determine a suitable gaussian surface. condition (1): the value of the electric field can be argued by symmetry to be constant over the portion of the surface. condition (2): the dot product e â· da can be expressed as a simple algebraic product e da because e and da are parallel.