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As shown in the figure, a pond has the shape of an inverted conewith the tip sliced off and has a depth of 5.0 m. The atmosphericpressure above the pond is 1.01 × 105 Pa. The circular topsurface (radius = R2) and circular bottom surface(radius = R1) of the pond are both parallel toground. The magnitude of the force acting on the top surface is the same as the magnitude of the force acting on the bottom surface.Find (a) R2 and (b) R1.
A rocket of mass 4.5 x 105 kg is in flight.Its thrust is directed at an angle of 54.0° above the horizontal and has a magnitude of8.90 x 106 N. Find the magnitude and direction of the rockets acceleration. Give the direction as an angle above the hor..
A block with mass m = 4.6 kg is attached to two springs with spring constants kleft = 37 N/m and kright = 51 N/m. What is the effective spring constant of the two springs
After performing an experiment concerning charging a capacitor Sally noticed that the potential difference across the capacitor reached 2/3 of its final value after 18 seconds. find the time constant for the resistor-capacitor combination
Consider two antennas separated by 14.0 m that radiate in phase at 85 MHz. Areceiver placed 150 m from both antennas measures an intensity/0. The receiver is moved so that it is2.2 m closer to one antenna than the other.
When a 32.0-V emf device is placed across two resistors in series, a current of 11.0 A is flowing in each of the resistors. When the same emf device is placed across the same two resistors in parallel, the current through the emf device is 56.0 A. Wh..
Assume the distance between the protons in the H2 molecule is 7.50 multiply.gif 10-11 m. Find the energy of the second rotational state, with J = 2
A 4.0 uF capacitor is connected in series with a 2.0 kilaOhm resistor across a 20-V DC source and an open switch. If the switch is closed at t=0 s, what is the charge on the capacitor at t= 9 ms
A ray of light travels through 3 materials whose surfaces are parallel to each other. The refracted rays (but not the reflected rays) are shown as the light passes through each material. Find the indices of refraction in these two media
What are the velocities of the two people after the snowball is exchanged? Disregard friction between skate and the ice.
Calculate the verage speed and time lead by the runner using the definition of average speed.
Rutherford's scattering experiments gave the first indications that an atom consists of a small, dense, positively charged nucleus surrounded by negatively charged electrons. What is the uncertainty of its momentum
a ray of sunlight is passing from diamond into crown glass the angle of incidence is 29.00deg. the indices of
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