Physics, 25.07.2019 04:30 rhiannpelham60

A61 kg skier starts from rest at the top of a 1200 m long trail which drops a total of 227 m from top to bottom. at the bottom, the skier is moving 11 m/s. how much energy was dissipated by friction?

Answers: 2

Show answers

Another question on Physics

Physics, 22.06.2019 06:40

Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?

Answers: 2

Answer

Physics, 22.06.2019 16:30

He latent heat of vaporization for ethyl alcohol is 854 j/g. the amount of energy, rounded to the nearest whole number, needed to change 5.20 grams of ethyl alcohol from a liquid to a gas is

Answers: 2

Answer

Physics, 22.06.2019 16:40

Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward

Answers: 1

Answer

Physics, 23.06.2019 00:30

Diego kicks a soccer ball from the end line. his fellow students time and mark the soccer ball as it moves down the field. the graph represents the ball's progress. based on the graph, during what time is the velocity constant and positive?

Answers: 1

Answer

You know the right answer?

A61 kg skier starts from rest at the top of a 1200 m long trail which drops a total of 227 m from to...

Questions