p7(3).png Two masses m1 = 2.0 kg and m2 = 3.0 kg are connected to the ends of a uniform rod of mass mR = 4.0 kg and length 1.5 m pivoted about its center.  They system starts from rest and a torque of 25.0 N m is applied thorough a rotation angle of 1300.  What are the speeds of the masses after the torque is applied?

A mass of 2.00 kg connected to a spring of spring constant 500.0 N/m undergoes simple harmonic motion with an amplitude of 30.0 cm.  What is the total energy stored in the system when the mass is at a position x = -20.0 cm from its equilibrium position?

p1..pngFig. 15-2 shows the displacement of a wave at a given position as a function of time and the displacement of the same wave at a given time as a function of position. Determine the frequency of the wave.

A mass of 2.00 kg connected to a spring of spring constant 500.0 N/m undergoes simple harmonic motion with an amplitude of 30.0 cm. What is the period of oscillation?

p1.(1).pngFig. 15-2 shows the displacement of a wave at a given position as a function of time and the displacement of the same wave at a given time as a function of position. Determine the wavelength of the wave.  

Describing national stereotypes. Describe one stereotype associated with 5 (five) of the following countries using SE for impersonal/passive constructions.  (20 points. 4 points each answer): NOTE: You should only describe 5, not all 7.   Ejemplo: Italia – En Italia se escucha ópera frecuentemente. España Estados Unidos Francia México India Cuba Alemania   En caso de que los necesiten (copiar y pegar): á  é  í  ó  ú  Á É Í Ó Ú   ñ  ¿ ?  ¡  !

How much heat does it take to melt 50.0 g of ice? (LF)water = 79.8 cal/g

A wave has a period 2.00 s, an amplitude 20.0 cm, and a wavelength 3.00 m. What is the speed of the wave?

The deepest point of the Pacific Ocean is 11,033 m, in the Mariana Trench. What is the water pressure at that point? The density of seawater is 1025 kg/m 3.

A 12.0 m long copper wire expands by 1.53 cm when heated from 25.0 0C to 100.0 0C.  What is the coefficient of linear expansion for the copper wire?