22. Which of the following can sound NOT travel through? gases vacuums liquids solids

Analyze why lifting an object vertically requires more energy compared to sliding it horizontally on a frictionless surface. Gravity must be overcome vertically Air resistance is greater No force is needed Objects are heavier horizontally

If the mass of an object is greater, its heat capacity will be: higher lower constant zero

Two bicyclists are accelerating forward at the same rate. Biker 1 has less mass than Biker 2 Which statement describes the net force on the bikers? A. The net force on Biker 1 is in the backwards direction. B. The net force on Biker 2 is greater than on Biker 1. C. The net force on both bikers is changing. D. Both bikers experience the same net force.

A 500 kg projectile is released from a height of 210 m above the ground How deep will it penetrate the ground? Consider that while the projectile is in the air friction is negligible and while the projectile moves through the ground it is subject to a constant friction force equal to 25,000 N.

Which spectroscopy technique uses ionizing radiation? Mass Spectrometry Infrared Spectroscopy Nuclear Magnetic Resonance Spectroscopy

In which of the following locations does radioactive decay occur? inside stars in nuclear waste in nuclear reactors when atomic bombs explode

Which of these is a random error? Using a balance scale or a digital scale Physical effects not considered in the analysis Miss-calibrated instrument A physical defect in the instrument

What type of spectrum does this represent? emission spectrum continuous spectrum absorption spectrum

The height of an object is signed differently than the height of a person. True False

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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