Which type of Axe head design will require the least amount of effort force to chop wood

short and wide

long and wide

long and thin

short and thin

By what factor does the energy of a 1-nm x-ray photon exceed that of a 10-mhz radio photon

What is the atomic mass of neon? Give your answer to the nearest tenth.

A negative correlation between degree of wealth and likelihood of suffering from a psychological disorder would indicate that

A light with a second-order bright band forms a diffraction angle of 30.0°. The diffraction grating has 250.0 lines per mm. What is the wavelength of the light? 800 nm 1,000 nm 1,386 nm 1,732 nm

What is the geocentric model of the Solar System? A. The thought that the Sun is the center of the Solar System. B. The belief that the Moon is the center of the Solar System. C. The idea that the Earth is the center of the universe. D.

Tarzan runs at 6 m/s and grabs a vertical vine (negligible mass) 4.1 m long which is tied to a tree at the top. Tarzan swings up. Determine the maximum height Tarzan will swing up and the angle the vine makes respect to vertical.

What is the safest place to be amid the coronavirus?

What is the change in internal energy if 60 J of heat are added to a system and the system does 40 J of work on its surroundings? Use AU = Q-W.

A 35-N bucket of water is lifted vertically 3.0 m and then returned to its original position. How much work did gravity do on the bucket during this process?

You then decide to throw another disc to your friend in the tree for fun. If you throw the disc at a speed of 10 m/s and your friend catches it 5.0 m above you, what was the speed of the disc just before your friend catches it