A homogenous rod of length 5 m and a mass of 60 kg is kept in lever. Calculate the effort required to balance lever.

What is the intensity level of a sound with an intensity of 0.000127 W/m2? 65 dB 72 dB 81 dB 120 dB

Osef applies an input force of 50 N to a crowbar. The crowbar applies a force of 750 N to the lid of a crate. What is the mechanical advantage of the crowbar?

Yellow light has a longer wavelength than green light. Which color of light has the higher frequency?

Calculate the magnitude of the average gravitational force between earth and the moon

Calculate the potential energy of a five KG object sitting at the top of a 2 m ramp

Imagine a particular exoplanet covered in an ocean of liquid methane. At the surface of the ocean, the acceleration of gravity is 6.20 m/s2, and atmospheric pressure is 7.00 ✕ 104 Pa.

Explain what surface tension is.

A helium-filled balloon is launched when the temperature at ground level is 27.8°c and the barometer reads 752 mmhg. if the balloon's volume at launch is 9.47 * 10^{4} 4 l, what is the volume in liters at a height of 36 km, where the pressure is 73.

Consider the moment when the spring is at its maximum compression. At that moment, the kinetic energy, the gravitational potential energy, and the elastic potential energy are, respectively, a - zero, at a maximum, and at a maximum b - at a maximum,

Ari, a young patient who is regularly treated by a psychiatrist, feels compelled to carry out repetitive tasks the same way very frequently. If Ari does not conduct these tasks with extreme precision, he can feel extremely nervous and uncomfortable.