Una niña en un trineo que suman en total 58 kg están siendo arrastrados hacia arriba por una pendiente de 12°. Si se ignora la fricción, ¿Qué potencia se requiere para que la niña junto con el trineo cubran en 4.5 min la pendiente completa,
que tiene una longitud de 1.20 km?

Very large accelerations can injure the body, especially if they last for a considerable length of time. one model used to gauge the likelihood of injury is the severity index ( ), defined as =/ . in the expression, is the duration of the accleration, but is not equal to the acceleration. rather, is a dimensionless constant that = the number of multiples of that the acceleration is equal to.in one set of studies of rear-end collisions, a person's velocity increases by 13.7 km/h with an acceleration of 36.0 m/s2 . let the + direction point in the direction the car is traveling. what is the severity index for the collision?

Which atomic model was proposed as a result of j. j. thomson’s work?

Which of these is constant for all types of electromagnetic radiation in a vacuum? select one: a. wavelength b. frequency c. photon energy d. amplitude e. velocity