John drives at 28 m/s for 2800 m. Then stops and rests for 300 s. Then drives at 25 m/s for 1100 m

A pressure difference of 6.00 x 104 Pa is required to maintain a volume flow rate of 0.400 m3 / s for a viscous fluid flowing through a section of cylindrical pipe that has a radius 0.330 m.

You observe three carts moving to the right. cart a moves to the right at nearly constant speed. cart b moves to the right, gradually speeding up. cart c moves to the right, gradually slowing down.

What releases or produce a cloud of electrons?

A wave travels at a constant speed. How does the frequency change if the wavelength increases by a factor of 2? A. The frequency decreases by a factor of 2. B. The frequency increases by a factor of 4. C. The frequency increases by a factor of 2. D.

3yds = ? in (1 yd = 3ft)

Object A has a length of 3 cm, a width of 10 cm, and a height of 2 cm. Object B is dropped into a graduated cylinder. It displaces 60 mL of water. The volume of object A is:

Is the following sentence true or false? Some information about an object or process may be missing from a model.

If V is a velocity, l a length, and v a fluid property having dimensions of L2T-1, which of the following combinations are qualitatively dimensionless (show work for a through d) : (a) V l v (b) Vl/v (c) V2v (d) V / (l v)

What happens to the total mechnical energy of the apple as it falls from the tree?

Fair Bonus Question: Derive the equation for gravitational potential energy, starting with the definition of work.