En cuanto tiempo recorro 28 km en la luna?

Lien uses a spring scale to pull a block toward the right across the lab table. The scale reads 8 N. Which force should Lien conclude is also 8 N?

A low-friction track is set up with a spring on the right end. In the middle of the track, a 1.8-kg cart moving to the right at 5.0 m/s overtakes a 3.6-kg cart moving to the right at 2.0 m/s. After the collision, the 1.8-kg cart is moving at 1.7 m/s.

Contrast inference and prediction.

Which of the following statements about energy is correct? A. Energy is a vector quantity. B. Energy is the force used to move an object. C. Energy is required to set an object in motion or D.

Kyle has a mass of 54 kg and is jogging at a velocity of 3 m/s. What is Kyle's kinetic energy?

A two-slit Fraunhofer interference-diffraction pattern is observed with light of wavelength 672 nm. The slits have widths of 0.03 mm and are separated by 0.24 mm. How many bright fringes will be seen inside the central diffraction maximum?

What is the primary mechanical advantage of a screw?

Find the density of seawater at a depth where the pressure is 950 atm if the density at the surface is 1100 kg/m3. Seawater has a bulk modulus of 2.3 * 10^9N/m2. Answer in units of kg/m3.

If you want to double the kinetic energy of a gas molecule, by what factor must you increase its momentum? A) 16 B) √2 C) 2 D) 2√2 E) 4

A 62 pound box is on an incline. Determine the minimum force P that would result in the box starting to slide up the incline. (include units with answer)