Un cuerpo de 20Kg ,inicialmente en reposo, está en la parte baja de un plano inclinado 30º, de longitud 7m , siendo μ = 0,3. ¿Con qué fuerza debo tirar de él para que llegue a la parte alta del plano en 0,8s?

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

The protons in a nucleus are approximately 2 ✕ 10^−15 m apart. consider the case where the protons are a distance d = 1.93 ✕ 10^−15 m apart. calculate the magnitude of the electric force (in n) between two protons at this distance.

The device shows the relative humidity at 22°c. what’s the water vapor density if the maximum water vapor in air at this temperature is 20 grams/cubic meter? a device showing that at 22 degrees celsius the relative humidity is 58%. a. 11.6% b. 11.6 g/m3 c. 12.76% d. 12.76 g/m3 reset next