- Potential Energy (PE Problems: 6. A rock of mass 2.2 kg is held 8 meters above the ground. Calculate the gravitational potential energy. 7. A 15 kg object is placed on a shelf 3.5 meters high. Find its potential energy. 8. A 3 kg book is placed on a table that is 7 meters above the floor.What is the potential energy of the book? 9.A 55 kg crate is lifted 5 meters in the air. Calculate the potential energy of the crate. 10. A 0.9 kg bird is perched on a tree 6 meters above the ground. What is the gravitation potential energy of the bird?
- measuring circular motion Fecha límite: Lunes, 13 Enero, 2025 at 11:59 pm I was riding the carousel at Opry Mills mall and I took 22.5 rotations. How many degrees and radians did I travel? Estaba montando el carrusel en el centro comercial 1 Opry Mills y tomé 22.5 rotaciones. ¿Cuántos grados y radianes viajé? Sab 11 Ene, 2025 at 1:55 pm publicado Escriba un comentario Resaltar usuario Debe enviar un comentario antes de poder ver las respuestas
- 7. Using the formula at the beginning of this lesson, calculate the wavelength of a signal from KPhET 98.7. Remember that FM stations transmit in the Megahertz range This means that KPhET is transmitting a frequency o (9.87times 10^7)hz What is the wavelength of the signal from this radio station?
- 33. A rock having a mass of 1.25 kg is dropped from the edge of a clill to the surface of the river water 35.0 m below. With what speed does the rock strike the surface of the water? A. 20.7m/s B. 26.2m/s C. . 172m/s D. . 442m/s
- e ball 5 seconds later? (b) What is the velocity of the bell at this time?(c) Hov for does it travel during this time? (d) What is the displacement o the ball?
