In a battery electrons flow from the what terminal to the what terminal

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Answer 1
Answer: They flow from the positive side of the battery to the negative side.

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HELP!!!!!! PLEASE!! I WILL GIVE 25 POINTS!!!!1) Joe and Ben were arguing about the Law of Conservation of Energy. Joe said that the Law of Conservation of Energy must be false because when you turn on a light it uses energy and so some of the energy is lost. Ben disagrees and says that energy cannot be created or destroyed. Who is right? Justify your answer.A) Joe is right because the electricity is changed to heat and light and is no longer electricity.B)Ben is right because the Law of Conservation of Energy is a law and cannot be false.C) Ben is right because the electricity from the light is transformed into heat and light.D) Joe is right because all electrical lights and appliances use electricity.2) Greg and Shawn are studying for a physical science test. Greg thinks that the kinetic energy of an object depends on the height and speed of an object, but Shawn thinks it depends on the mass of an object. Who is right and why?A) Shawn is right. The mass of an object determines the inertia of the object. Increasing inertia is the only thing that will increase kinetic energy.. B) Both Greg and Shawn are correct since kinetic energy depends on mass, height and speed of an object.C) Greg is right. Increasing the height or speed of an object increases the kinetic energy of an object.D) Neither is completely right. Shawn is partly correct since kinetic energy depends on mass, but Greg is also partly right since it also depends on speed.3) Dan got into his car in the middle of summer. When he sat on the hot black leather seats, he burned his legs. His sister said that conduction was the reason Dan burned his legs, but Dan blamed the sunshine and said it was radiation that caused him to get burned. Who was right and why?A) Both Dan and his sister are right. The sun heated the car seats through radiation heat transfer, but then Dan touched the seat and the heat was conducted to his legs.B) Dan's sister was correct because Dan's legs touched the car seats. That is an indicator of heat transfer by conduction.C) Dan was right because the sun heated the car without touching it. That is radiation.D) Dan's sister was right because conduction can transfer heat through both solids and fluids (such as air).

How do materials, such as nutrients and waste, pass through the cell membrane?

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Think of the cell membrane as a net and the nutrients are the perfect fit to fall through it. Where the waste is not the right size and will not fit through the holes of the net.

Answer fast, please.

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D bomb b j de violence

a graph is named mpg vs speed of a car traveling on a straight flat road. what does that name tell us about the graph

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All of the other choices.

It's a graph of a vehicle's fuel efficiency ... what operating speeds make it use more or less gas to go 1 mile.

How does compression (the force) work? Not tension and compression. Just compression.

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What allows an arch bridge to span greater distances than a beam bridge, or a suspension bridge to stretch over a distance seven times that of an arch bridge? The answer lies in how each bridge type deals with the important forces of compression and tension.

An actress wears a blue dress. How could you use spot lights to make the dress appear to be black?

Answers

Answer:

Use a yellow (Red + Green) spotlight to make it look black.

Explanation:

The blue fabric has pigments that can absorb the red and green light. This light is incident on the fabric, therefore, there is no light left to be reflected back, so, at plain sight, the dress will look black.

A graduated plank of length 90cm sits on a knife edge at 40cm mark. When a load of 50g is placed at 20cm, find the mass that will balance the plank at 70cm length.

Answers

Answer:

33.3 g ≈ 33 g

Explanation:

Please see attached photo for explanation.

From the attached photo, M is the mass that we must obtain to balance the plank.

The mass, M can be obtained as follow:

Anticlockwise moment = clockwise moment

Anticlockwise moment = 50 x 20

Clockwise moment = M x 30

Anticlockwise moment = clockwise moment

50 x 20 = M x 30

Divide both side by 30

M = (50 x 20)/30

M = 33.3 g ≈ 33 g

Therefore, the mass that will balanced the plank at the 70 cm length is appropriately 33 g