Suppose a small box with a mass of 4.00kg is moving at 10.0m/s along a flat horizontal surface immediately before it begins travelling down a slope. The slope is at an angle of 20.0∘, has a length of 8.00m, and the coefficent of kinetic friction between the slope and the box is 0.750. What is the velocity of the box when it reaches the bottom of the slope?

One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a small patch of light on the far wall. you see that the patch of light seems to be a circular diffraction pattern. it appears that the central maximum is about 1 cm across and you estimate that the distance from the window shade to the wall is about 3 m. what is (a) the average wavelength of sunlight? (b) the diameter of the pinhole?

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd question 6 options: 3000 joules 30 joules 320 joules 3200 joules

Which terms describe the purpose of antennas on devices that use radio waves? transmit and receivemodify and amplifyamplify and receivemodify and transmit