A skier is pulled by a tow rope increase a frictionless ski steep that makes an edge of 17° with the horizontal. The rope move paral

You are watching: Which of the following are not vector directions?


(a) 950J

(b) 216 W

(c) 316.67 W


(a) If the skier is moving at a continuous speed, then his kinetic energy is unchanged. The work-related done by the rope is the very same for speed at 2.2m/s as it is for 1.5m/s. That is 950J

(b) once the rate is 1.5m/s then the moment it would take to move up a street of 6.6 m is 6.6 / 1.5 = 4.4 s

If the work is 950J end 4.4s climate the rate of occupational is 950 / 4.4 = 216 W

(c) once the rate is 2.2 m/s then the moment it would certainly take to move up a street of 6.6 m is 6.6 / 2.2 = 3 s. If the work-related is 950J over 3s then the rate of work is 950 / 3 = 316.67 W

7 0
8 months ago
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When a charged bit moves in ~ an edge of 26.1 with respect come a magnetic field, it experiences a magnetic force of magnitude
IRINA_888 <86>


The edge is 153.9 degree.


Let the magnetic field is B and also the charge is q. Angle = 26.1 degree

The pressure is F.

Let the angle is A".

Now equate the magnetic pressures


8 0
11 months ago

Red light from three different sources passes with a diffraction grating with 6.60×105 slits/m. The wavelengths of the 3 l
riadik2000 <5.3K>

rememberingsomer.com:· Visible light passes v a diffraction lattice that has actually 900 slits per centimeter, and the interference sample is observed on a display that is 2.74 m indigenous the grating. In the first-order spectrum, maxima for two different wavelengths are separated ~ above the display by 3.16 m. What is the difference between these wavelengths? . I understand to apply the equation din(theta) = m*wavelength yet I"m no sure just how to discover all the absent variables or to acquire the difference in wavelength

3 0
7 months ago
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