Identify the area of physics that is most relevant to each on the following situations. explain your reasoning:
a. a high school football field
b. food preparation for the prom
c. playing in the school band
d. lightning in a thunderstorm
e. wearing a pair of sunglasses outside in the sun
areas of physics
mechanics - motion and its causes, interactions between objects
thermodynamics - heat and temperature
vibrations and wave phenomenon - specific types of repetitive motions
optics - light
electromagnetism - electricity, magnetism, and light
relativity - particles moving at any speed, including very high speeds
quantum mechanics - behavior of submicroscopic particles
Answers: 2
Physics, 22.06.2019 11:00
Marcella is a four-year-old girl who is a victim of emotional child abuse. based on the child and family services improvement and innovation act of 2011, which action should the government take for marcella? a. the state should arrest marcellaβs abuser. b. the state should find a home for marcella as soon as possible. c. the state should enforce stricter laws in the area where marcella resides. d. the state should provide medical assistance to marcella.
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Physics, 22.06.2019 18:30
Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.
Answers: 1
Physics, 22.06.2019 21:20
An electron is ejected into a horizontal uniform eβ field at a parallel horizontal velocity of v0. assume the electron's initial position x0, initial velocity v0, time t, magnitude of electric field e, electron's mass m, and the magnitude of the electron's charge |e|. ignore the force that earth exerts on the electron. assume the eβ field is in the same direction as the initial velocity. part a define the equation for the electron's velocity. express your answer in terms of the variables v0, |e|, t, e, and m.
Answers: 3
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