Which of the following contains energy? A chemical bond A neutron A nucleus An atom

All the stars pass through this process Nuclear fusion Planetary nebulae Black dwarf

Which is a more accurate statement? An object that absorbs energy wel is black. Both are untrue. A black object absorbs energy well. Both say the same thing, so both are equivalent.

Which statements best characterize conductors?Check all that apply. D Conductors allow electricity to easily move through them. Glass is an example of a conductor. Metal is an example of a conductor. Conductors do not allow electricity to easily move through them. Conductors' restrict the flow of thermal energy.

During an ultrasound, sound waves are sent by a transducer through muscle tissue at a speed of 1,300m/s. Some of the sound waves are reflected from a metal fragment 5.0 cm into the muscle tissue. How long did it take the transducer to detect the reflected waves from the metal fragment after they were first emitted? (4 points) 0.26 seconds 39 seconds 4.6 E-5 seconds 7.7E-5 seconds

1. Our galaxy has a radius of 52,850 light years. A neighboring galaxy, Andromeda, has a radius of 110,000 light years. How much larger is the Andromeda galaxy's radius compared to the radius of our galaxy? 5.8135times 10^9 light years 5.7150times 10^4 light years 1.62850times 10^5 light years 2.08times 10^7 light years.

A 30 cm long organ pipe is filled with air and is open at one end and closed at the other. The speed of sound in air at 0^circ C is 331m/s What is the wavelength of the third mode of vibration? Multiple Choice 30 cm 36 cm 24 cm 12 cm 48 cm

Select the correct answer. What is the equivalent resistance for a series circuit with three resistors.19.2 ohms, 246 ohms, and 312 ohms? A. 36.6 ohms B. 12.6 ohms C. 25 ohms D. 75 ohms

Which of these is a by -product of nuclear fission? Explosions Helium Energy

In which of the following is positive work done by a person on a suitcase? The person holds a heavy suitcase. The person lifts a heavy suitcase The person stands on a moving walkway carrying a heavy suitcase All of the answers None of the answers

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Fill in the Blank Question Along the trajectory of a projectile, the $\square $ velocity remains constant, because there is no $\square $ in that direction. C Need help? Review these concept resources. Read About the Concept

What is the missing particle for the following nuclear decay process? ${}_{55}^{137}Cs\rightarrow _{56}^{137}Ba+?$ ${}_{1}^{0}\alpha $ ${}_{-1}^{0}\beta $ ${}_{1}^{0}\beta $ ${}_{0}^{1}n$

The diameter of a hydrogen atom is about meters. A protein molecule has an overall length of 3000 times (or $3\times 10^{3}times)$ the diameter of a hydrogen atom. What is the length of the protein molecule,. in meters , if it were written in scientific notation? $3.15\times 10^{-8}meters$ $3.15\times 10^{-12}meters$ meters $3.15\times 10^{-7}meters$

Which quantity will have the units "rad/s"? A linear displacement B angular displacement C linear velocity D angular velocity

What happens to the water pressure when water moves on a downward slope through layers of rock and soil? the water pressure increases the water pressure is unchanged the water pressure decreases the water pressure decreases then increases

An electron is a __ charged particle. a. negatively J. neutrally c. positively C B A

In order to maximize the thermal effects of ultrasound, the treatment area should be no more than three (3) times the size of the soundhead surface. True False

Question 2 (2 points) Why is Ohm's Law relevant? Ohms law is extremely important to the world of electrical circuits and components but is not suitable for every electrical circuit and application. There are certain requirements that a circuit and electrical component should meet to ensure that Ohms law is applicable. Ohms law can be used to calculate the required value of Voltage or components within a circuit, it can also work out the amount of current that flows in an electrical circuit when resistors can be measured across electrical components such as voltage. Ohm's Law is not relevant Ohm's Law is only used in a DC circuit.

What is a room designed to absorb sound called? anechoic chamber reflection chamber echo chamber absorption chamber

True or false, all else being equal, water flows with a higher velocity thorough a semi- circular channel than a wide, shallow channel. True False