During a vaporization a substance changes from what to what

An electron is to be accelerated from a velocity of 1.50*106 m/s to a velocity of 9.00*106 m/s. through what potential difference must the electron pass to accomplish this?

When conduction electrons pass through a device with resistance, which describes their energy? a) their potential energy increases. b) their kinetic energy increases c) their potential energy decreases d) their kinetic energy decreases

On her way home from work, Brenda drove 20 miles at 60 miles per hour. Due to poor weather conditions, she then reduced her speed to 30 miles per hour for the remainder of the trip. Her entire commute to work is 80 miles in distance.

A well-insulated electric water heater warms 131 kg of water from 20.0°C to 51.0°C in 31.0 min. Find the resistance (in Ω) of its heating element, which is connected across a 240 V potential difference. 6.34 Correct: Your answer is correct.

There have been incidents of violence at various Olympiads? true or false?

Which one is having lesser ressistance. a 60w bulb or a 40w bulb?

A skater is standing still on a frictionless rink. Herfriend throws a Frisbee straight at her. In which of the followingcases is the largest momentum transferred to the skater? a) the skater catches the frisbee and hols onto it.

A 80 kg firefighter climbs of stairs 6 meter high in ten seconds

Your 64-cm-diameter car tire is rotating at 3.5 rev/s when suddenly you press down hard on the accelerator. After traveling 200 m, the tire's rotation has increased to 6.0 rev/s. What was the tire's angular acceleration? Give your answer in rad/s2.

Which of these refers to the set of characteristics that underlie a relatively stable pattern of behavior in response to ideas, objects or people in the environment Options Dissonance perception Personality Halo effect Attitude