1) The height of the Washington Monument is measured to be 170 m on a day when the temperature is 35.0^circ C What will its height be on a day when the temperature falls to -10.0^circ C Although the monument is made of limestone, assume that its thermal coefficient of expansion is the same as marble's.

A ball is thrown vertically upward. After r seconds, it's height him feet) is given by the function h(t)=40t-16t^2 After how long will It reach its maximum height? Do not round your answer. Time: square seconds

The __ hypothesis states that the moon and the earth originally formed close to each other from the same material, cooling and solidifying separately. Answer Input: Spelling counts but capitalization doesn't. square

Select all of the following that are examples of kinetic energy (energy of motion). Stretched rubber band Running Osoda Child on a slide OSliding down a hill Ocooking Hammer above a nail

An object starts from rest and travels in a straight line with an acceleration of 5.0 m/s^2 for 4.0 seconds. I then reduces its acceleration to 2.7m/s^2 for an additional 8.5 seconds. The magnitude of the velocity at the end of the 8.5 second interval is Your Answer: square square Answer units

An object can be in equilibrium when only one force acts on it. True False

The first law of thermodynamics is energy is neither created nor destroyed entropy keeps you from breaking even energy is lost through heat none of these are tru

Boiling water burns are less damaging than steam burns because boiling water doesn't condense and release additional energy. has less energy per kilogram than steam. both of these none of the above

Sound propagates through a soft-tissue medium and strikes another soft tissue. What is the approximate amount of transmission at this interference? A 100% B 99% C 1% D 50%

The rings of Saturn have their structure due to which of the following? A Resonance with Saturns moons. B Shepherding moons within the rings. C New material added often to the rings. D All of the above E None of the above

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$\square $ Answer Bank KE: 1000.0 J PE: 3000.0 J KE: 0J $PE:4000.0J$ KE: 2000.0 J PE: 2000.0 J KE: 4000.0 J PE: 0J

Learning Log: How do you think you get something to have more kinetic energy?

If a UV light unit has four lamps in it, and each lamp is 7-watt, it is known as a __ 7-watt unit 28-watt unit 11-watt unit 3-watt unit

10. What is the mass of a meteorite that is traveling towards Earth at $1,760m/s$ with a momentum of $33,400kgm/s$

Where is the energy coming from in the lab (where does it start)? A Potential energy in the Cheeto B Potential energy in the water C Kinetic energy inside the water D Kinetic energy in the Cheeto

What should happen to the temperature of the water? A It stays the same B It goes down C It goes up

9. Your local weather report announces that the barometric pressure is 30.44 inHg. Convert this pressure to psi, atm torr, and Pa.

Express the temperature, 275.18 K in degrees Celsius. $548.33^{\circ }C$ $274.17^{\circ }C$ $2.03^{\circ }C$ $120.88^{\circ }C$ $22.78^{\circ }C$

Hubble's Law has led physicists and astronomers to the hypothesis that the universe is expanding. True False

Newton determined that the force of gravity on an object is proportional to its mass causing its mass to be canceled out (Newton's second law) and resulting in a constant acceleration. If the laws of physics are universal, then Newton should be able to apply his discoveries about gravity on Earth to the motion of the planets in our Solar System. Newton's third law says that for every force there is an equal reaction force in the opposite direction. What does this imply about the force of gravity associated with a person standing on the Earth? Choose one: A. The force of gravity on the person cancels out to zero. B. The Earth's gravity pulls downward on the person but also pushes upward on them. C. The Earth's gravity pulls downward on the person, and the person's gravity pulls upward on the Earth. D. There is twice as much gravitational force on the person than there would be if it weren't for Newton's third law.