What is frame difference? Difference in size between frames difference between the A and B measurement difference between the GC and PPD difference

4. What kind of evidence do you predict scientists use to explain the beginning of the universe?

Mary spills a glass of water. When she places a paper towel over the liquid, she notices that the water absorbs and spreads throughout the towel automatically. Which statement describes why this happens? Weak cohesion between different water molecules causes the water to be pushed along the surface of the towel. Strong cohesion attracts the water to the paper towel and causes the water to move along the surface of the towel. Weak adhesion between different water molecules causes the water to be pushed along the surface of the towel. Strong adhesion attracts the water to the paper towel and causes the water to move along the surface of the towel.4

Speed,velocity &acceleration all describe the __ of an object Position Rate Motion

THINK: It is possible for two cars to have the same speed but different velocities. False True

11. What is the mass of a cylinder of lead with a radius of 2 cm and a height of 6 cm given that the density of lead is 11.4g/cubic centimeter?

Virtual Density Lab POSSIBLE POI Using the same similation as the previous question (use the reset button in the upper right or refresh): What is the mass of the wood? square What is the volume of the wood (it is going to want to float, hold in under water to get the final volume) - intial volume square final volume: square volume of wood square What is the density of the wood? square

large bottle of soda equally among six glasses. Haley added five whole ice cubes to each of the first three glasses; her brother crushed five ice cubes and added them to the other three glasses . Ten minutes after all the ice had been added to the glasses, Haley used a thermometer to measure the temperature of the soda in each glass. Complete the sentence. In this experiment , the temperature of the soda was __ __ a dependent variable an independent variable

Phase changes are not reversible. True False

The fact that clay can be shaped proves that solids do not have a definite shape. True False

Hot Questions

$\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.