1.
a wave with a short wavelength will also have a (2 points)
high frequency and h...
1.
a wave with a short wavelength will also have a (2 points)
high frequency and high energy.
high frequency and low energy.
low frequency and low energy.
low frequency and high energy.
2.
high energy waves have (2 points)
long wavelengths and low frequencies.
long wavelengths and high frequencies.
short wavelengths and low frequencies.
short wavelengths and high frequencies.
3.
compared to gamma rays, x-rays have relatively (2 points)
less energy and short wavelengths.
more energy and short wavelengths.
less energy and long wavelengths.
more energy and long wavelengths.
4.
gamma rays and x-rays are similar because they both have (2 points)
high frequencies and high energy.
low frequencies and low energy.
high frequencies and low energy.
low frequencies and high energy.
5.
scientists use this part of the electromagnetic spectrum to diagnose broken bones. (2 points)
x-rays
infrared waves
gamma rays
ultraviolet waves
6.
this part of the electromagnet spectrum produces heat and with special equipment can locate people at night. (2 points)
infrared waves
microwaves
x-rays
gamma rays
7.
when you answer a call on your cell phone, it was most likely transmitted by (2 points)
ultraviolet waves.
radio waves.
gamma rays.
infrared rays.
8.
this part of the electromagnetic spectrum can be used to generate power. (2 points)
gamma rays
radio waves
microwaves
infrared rays
9.
you are a scientist trying to develop a technology that can be used to power wrist watches. which type of electromagnetic wave would be most useful to investigate? (2 points)
gamma rays, because they are powerful and safe.
infrared waves, because they do not produce heat and have high energy.
ultraviolet waves, because they have moderate energy and are abundant.
microwaves, because they are powerful and available.
10.
you want to create a device to warm food that is safe. which type of electromagnetic wave would be most useful to investigate? (2 points)
x-rays
infrared waves
gamma rays
ultraviolet waves
Answers: 1
Physics, 22.06.2019 00:20
Aparticle of mass m is projected with an initial velocity v0 in a direction making an angle α with the horizontal level ground as shown in the figure. the motion of the particle occurs under a uniform gravitational field g pointing downward. (a) write down the lagrangian of the system by using the cartesian coordinates (x, y). (b) is there any cyclic coordinate(s). if so, interpret it (them) physically. (c) find the euler-lagrange equations. find at least one constant of motion. (d) solve the differential equation in part (c) and obtain x and y coordinates of the projectile as a function of time. (e) construct the hamiltonian of the system, h, and write down the hamilton’s equations (canonical equations) of motion.
Answers: 2
Physics, 22.06.2019 12:00
For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up
Answers: 2
Physics, 22.06.2019 14:00
If element x has 99 protons how many electrons does it have
Answers: 1
Physics, 22.06.2019 15:50
Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?
Answers: 2
English, 10.01.2021 19:30
Mathematics, 10.01.2021 19:30
English, 10.01.2021 19:30
Mathematics, 10.01.2021 19:30
History, 10.01.2021 19:30
Mathematics, 10.01.2021 19:30
Mathematics, 10.01.2021 19:30
Law, 10.01.2021 19:30
Mathematics, 10.01.2021 19:30
Mathematics, 10.01.2021 19:30
Mathematics, 10.01.2021 19:30
Physics, 10.01.2021 19:30
Mathematics, 10.01.2021 19:30