Una paisana tienen a su novio en cuarentena por coronavirus. No tiene móvil en la casa y quiere hacerle llegar uno para poder chatear con él y que no la olvide. Para ello se construye un bazooka casero para lanzarle el móvil metido en un bote.
Si dispara el bote desde el suelo con una velocidad inicial de 70 m/s y un ángulo de
inclinación de 45° respecto a la horizontal. Calcula:
a) ¿A qué distancia del jardín de la casa debe disparar para que le llegue?
b) ¿Qué altura máxima alcanzaría el bote?
c) ¿En qué posición y qué velocidad tendrá el bote 7 s después de haber sido lanzado?

Which expression allows you to determine the mechanical advantage of an inclined plane? a. height of plane / input force b. length of plane / input force c. length of plane / height of plane d. height of plane / length of plane

Steam is generated in a boiler of a cogeneration plant at 10 mpa and 450°c at a steady rate of 5 kg/s. in normal operation, steam expands in a turbine to a pressure of 0.5 mpa and is then routed to the process heater, where it supplies the process heat. steam leaves the process heater as a saturated liquid and is pumped to the boiler pressure. in this mode, no steam passes through a condenser, which operates at 20 kpa. (a) determine the power produced in the turbine and the rate at which process heat is supplied in this mode. (b) determine the power produced in the turbine and the rate of process heat supplied if only 60 percent of the steam is routed to the process heater and the remainder is expanded to the condenser pressure. (3.32 mw; 9.69 mw; 4.25 mw; 5.82 mw)

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?