Suppose a child swings around her straight arm about her shoulder joint at an angular velocity of 13 rad/s. If her arm is 40. 0 cm long, what is the speed of her hand?.
What type of heat transfer occurs when molecules collide and create movement when objects are touching each other?.
A nonmechanical water meter could utilize the hall effect by applying a magnetic field across a metal pipe and measuring the hall voltage produced. What is the average fluid velocity in a 3. 50-cm-diameter pipe, if a 0. 750-t field across it creates a 75. 0-mv hall voltage?.
Why are wages lower for workers in long-term care work? consider both the sources of funding for this care, the competition, and the alternatives available to the workers in the industry.
Prime minister liz truss of britain resigned on oct. 20, making her the shortest-serving prime minister in british history. How long was she in office?.
two skaters, both of mass 75 kg, are initially at rest on skates on a frictionless ice pond. one skater throws a 0.3-kg ball at 10 m/s to his friend, who catches it and throws it back at 10 m/s. when the first skater has caught the returned ball, what is the velocity of each of the two skaters?
a dielectric is inserted between the plates of an isolated, charged capacitor. as the dielectric is being inserted, will the electric field between the plates and the electric potential difference across the plates of the capacitor increase, decrease, or remain the same?
red light emitting from a laser has a frequency of 4.25 x 1014 s-1. what is the wavelength of the light in nm?
what is the force per meter on a straight wire carrying 5.0 a when it is placed in a magnetic field of 0.020 t
what wavelength of electromagnetic radiation has 5 times the energy of 505 nm light? report your answer in nm.
parallel paths always divide the current equally, reducing the total current through the circuit. true or false
the amplitude of the wave became much bigger than the amplitude of the oscillator. what was the reason for this
how might a steady mist of water help to bring a house fire under control better than a steady stream of water?
what is the voltage this voltmeter is measuring? be sure your answer has a reasonable number of decimal places.
an airplane takes off northwest from dallas to houston. is this an example of speed, velocity or acceleration?
which term best describes a person with vision 20/220 in the better eye that is improved to 20/70 with glasses?
