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A mobile at the art museum has a 2.0 kg steel cat and a 4.0 kg steel dog suspended from a lightweight cable, as shown in the figure (Figure 1) . It is found that? 1 = 27? When the center rope is adjusted to be perfectly horizontal
What is the angle of rope 3?
What is the tension in the rope 3?
a 68.0 kg person throws a 0.0490-kg snowball forward with a ground of 29.0 m/s. What are the velocities of the two people after the snowball is exchanged
Dave needs to get groceries from the store, which is a distance D = 1.1km east of his house. How long in seconds does it take dave to reach the store
Platinum has a work function of 6.4 eV. Radiation with wavelength 150 nm and intensity 1.3 W/m2 is directed at a platinum surface. (a) Discover the maximum kinetic energy of the ejected electrons. (b) If 1.0% of the photons striking a1.0 cm2 area of ..
To initiate a nuclear reaction, an experimental nuclear physicist wants to shoot a proton into a ^12 C nucleus. With what speed must the proton be fired toward the target
Two light sources are used in a photoelectric experiment to determine the work function for a particular metal surface. what is the work function for this metal
What is new angular speed of the merry-go-round
The springs of a 1300kg car compress 5.6mm when its 70kg driver gets into the driver's seat. what will be the frequency of vibrations
A 2.7 kg mass acceleration speed at 10 m/s2 in a direction 38? north of east. One of the two forces acting on the mass has a magnitude of 10.6 N and is directed north. Determine the magnitude of the second force.
The electric field in a velocity selector is generated by two parallel plates separated by 5.00 cm with a potential difference of 90.0 V. at what speed will particles pass through undeflected
two metal balls m11kg and m22kg are traveling toward each other with corresponding speeds v11ms v22ms. if the collision
A rock is thrown vertically upward from ground level at time t = 0. At t = 2.30 second it passes the top of at all tower, and 1.10 second later it reaches its maximum height. Find what is the height of the tower
If a material increases its length from 130 m to 132.60 m when its temperature is rasied 155 degrees C, what is its coefficient of linear expansion
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