- The percentage of the sun's solar power that is absorbed by water is a. 86% b. 25% C. 398% d. 342%
- What is a Force?(pages 356-357) __ that acts on an object. 1. A force is defined as a(n) __ or a(n) 2. Is the following sentence true or false? A force can act to cause an at rest to move or it can accelerate an object that is already moving. __ that is already moving? __ 4. Circle the letter of the best answer. What force causes a 1-kg mass to accelerate at a rate of 1 meter per second each second? a 1kg/mcdot s^2 b. 1kg/s c. 1kgbullet m d. 1 newton Combining Forces (pages 357-358) 5. The overall force acting on an object after all the forces are combined is the __ 6. How do balanced and unbalanced forces affect the motion of an object? __
- Pregunta 8 (1 punto) A tire rotates 20 rad and has a radius of .15 m.The arc length is __ m S=(Theta _(rad))(t) Un neumático gira 20 rad y tiene un radio de .15 m La longitud del arco sería m Espacio en Blanco 1: square punto) A child sits on a carousel with a radius of 3 m and rotates thru an arc length of 42 m The angular displacement would be __ rad Theta _(rad)=S/r Un niño se sienta en un carrusel con un radio de 3 my gira a lo largo de un arco de 42 m. El desplazamiento angular seria rad Espacio en Blancop: square Pregunta 10 (1 punto) 450 degrees is equal to 450 grados es igual a , a 5 rad b 7.85 rad c 8.46 rad d 9 rad
- Pregunta 6 (1 punto) Sue is on a ferris wheel and travels an arc length of 75 m. Her angular displacement would be __ rad if the radius is 15 m. Theta _(rad)=S/r Sue está en una noria y recorre un arco de 75 m.Su desplazamiento angular seria rad si el radio es de 15 m. Espacio en Blanco 1: square Pregunta 7 (1 punto) Jill rotates 7 times on a merry go round and covers an arc length of 50 m. The radius of the ride is ...m r=S/Theta rad Hint: first convert rotations to radians Jill gira 7 vecesfen un carrusel y cubre una longitud de arco de 50 m. El radio del recorrido es - m r=5 Brad Sugerencia: primero convierte 185 rotaciones en radianes 7.14 m a 350 m c 1.14 m d 278m
- 4. Democritus called tiny fundamental particles of matter a. Protons b. Electrons c. Atomos d. Neutrons
