How does vacuum reduce thermal energy transfer

Which statement tells you where the metalloids are located in the periodic table A. metalloids are the elements to the left of the zigzag line B. metalloids are the elements to the right of the zig-zag line C.

Lee pushes horizontal with a force of 79 N on a 34Kg mass for 10 m across a floor. Calculate the amount of work lee did

As Luke rides his bike down a hill, potential energy is converted to kinetic energy. What is this an example of? A. Law of universal gravitation B. Theory of relativity C. Theory of momentum D. Law of conservation of energy

Consider a system of an 85.0 kg man, his 21.0-kg dog, and the earth. The gravitational potential energy of the system increases by 2.40 103 J when the man climbs a spiral staircase from the first to the second floor of an apartment building.

A resistor in a circuit dissipates energy at a rate of 1 W. If the voltage across the resistor is doubled, what will be the new rate of energy dissipation?

The list shows the results of six athletes competing in the long jump, which has a target distance of 20 feet.

Do action and reaction cancel each other out?

A weather balloon is inflated to a volume of 29.1 L at a pressure of 733 mmHg and a temperature of 24.7 ∘C. The balloon rises in the atmosphere to an altitude where the pressure is 365 mmHg and the temperature is - 14.5 ∘C.

A car traveled 112.0m in 24.500s, what was a car's average speed?

A rollercoaster is in motion. Which of the following is NOT a force acting on the rollercoaster? A. Gravity B. Friction C. Velocity D. Air resistance