Recent content by duckywucky

Only 1 force?! the .15 J

is it 1.7(1.2) / .15?!

Homework Statement The largest turtle ever caught in the US had a mass of over 800 kg. Supoose this turtle were raised 5.45 m onto the deck of the research ship. If it takes 4.60 x 10^4 J of work to lift the turtle this distance at a constant velocity, what is the turtle's weight...

The Wnet means to me the total work done. and is it Fnet(d)? KE = 1/2 mv^2 for Δ(KE)?

Work done is 2.08. Force of gravity is 9.81 And the mass of the block is 40.0 kg.

(.0017kg)(1.2m/s^2) or (1/2)(.0017kg)(1.2m/s)^2 I'm not sure what to do with the Joules

Wnet = delta(KE)

Work done is 2.08 x 10^4. You're looking for Force, but I'm not sure the distance...maybe 300 m?

Homework Statement A hummingbird has a mass of about 1.7 g. Suppose a hummingbird does 0.15 J of work against gravity, so that it ascends straight up with a net acceleration of 1.2 m/s2. How far up does it move? Homework Equations The Attempt at a Solution I don't know what to...

Okay, that helps! What would i do with the friction force?!

I have no idea to be honest. Our class hasn't covered potential energy yet so i don't know what the formula is for it. XD

So how would i set up the formula? W = (40.0N)(...)

So what formula would i use for the inertia of the ball?

So does that mean I would do (40.0)(9.81)(2.08 x10^4)? I came up with 814.192 but in scientific notation, it would be: 8.16 x 10^6 J?

Homework Statement The longest shish kebab ever made was 881.0 m long. Suppose the meat and vegetables need to be delivered in a cart from one end of this shish kebab’s skewer to the other end. A cook pulls the cart by applying a force of 40.00 N at an angle of 45.00° above the horizontal...