Physics class

Well, here's how I solved it--this windmill has access to 1000 W of power, but it loses 400 W, so that means the usable amount of power is the difference, 600 W. Well, power is work over time...

Well let's make upwards forces have to balance downwards forces. The only downwards force we have is mg, 50 N that must be balanced by the normal force, so that has to also be 50 N. We can do...

The connection between angle and time is what's known as angular velocity, which we give this symbol ω--it looks sort of like a funny w. In this quantity describes how quickly in radians we...

Well, the best answer is mgh--in fact, that's the only answer. Let's see why. Well, let's do a diagram of for example this bucket--there's mass m and weight mg. The...

Now you're maybe asking yourself, so what? Who cares about this phase diagram? You're in for a treat. Notice that when I pick out a point on this circle. And remember this circle tells...

So we're halfway then--we've got one of the two numbers we need to know our position on the earth--latitude. So, this unit is about covered up but not quite. Longitude is much more...

Time's up. I'm not gonna let you see the answer, I wanna know what you think. How many think:a? energy was added to break the bond of this ATP sitting in outer space in two pieces....

We have talked about three methods of lifting a rock of 100 kg by 1 m. If we just want to lift the rock, well our force has to balance the weight, which means you're going to need a 1000 N...

1. Force- Force was used in the Osmos game when you moved the ball by extracting mass, forcing the ball to move wherever you moved it. 2. Friction-Whenever an orb that was larger than your orb rubbed...

The question now is what's causing this unknown force, which I've labeled with a question mark subscript. We know that this force is being caused by gravity and the mutual attraction...