Physics, 08.04.2021 06:40, teacherpreacher
A 50.0 kg boy jumps off the back of a 4.0 kg skateboard that is moving forward with an initial velocity of 3.0 m/s. Find the skateboard’s speed immediately after the boy jumps if the boy’s velocity when jumping off the back is 2.5 m/s in the forward direction.
Answers: 1
Physics, 22.06.2019 04:50, ineedhelpplz40
Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?
Answers: 1
Physics, 22.06.2019 05:20, cwsmith8026
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?
Answers: 1
A 50.0 kg boy jumps off the back of a 4.0 kg skateboard that is moving forward with an initial veloc...
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