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If 45 g is suspended at 25 degree, 105 g is suspended at 85 degree, and 65 g is suspended at 330 degree, what mass must be suspended at what angle to balance these three forces?
A coil with resistance 0.05( and self-inductance 0.01H is connected across a 12-volt battery of negligible internal resistance. a) How long after the switch is closed will the current reach 95% of its final value.
the coefficient of static friction is 0.26. If you apply the minimum force needed to get the refrigerator to move, illustrate what will the acceleration then be?
An iron tower in is 399 meters tall on a cold day (T = -6.7 degrees Celsius). What is its height of the tower on a hot day while the temperature is 31.5 degrees Celsius.
If electrons are accelerated from rest in an electron gun by sending them through a potential difference of 11.0 kV, what is the resulting kinetic energy of each electron?
The acceleration as a function of time of a mass-spring system is given by a=(0.70m/s^2)sin[(3rad/s)t]. a)If the spring constant is 20N/m, what is the amplitude? b)What is the initial velocity? c)what is the mass of object?
How much heat energy can created throughout motion
Suppose a ping-pong ball and a bowling ball are rolling toward you with the same momentum, and you exert the same average force in stopping each of them.
A small, 300 g cart is moving at 1.60 m/s on an air track when it collides with a larger, 1.00 kg cart at rest. After the collision, the small cart recoils at 0.890 m/s.
You are lowering two boxes, one on the top of the other, down the ramp by pulling on a rope parallel to the surface of the ramp.
The process is claimed to produce 2000 J/min of work and to require an undisclosed amount of heat transfer with a heat reservoir at 300 K. Should inventor be issued a patent of this device.
What is the largest wavelength that will give constructive interference at an observation point 171 from one source and 295 from the other source.
During the current year it reported net income of $875,000. It had cash provided by operating activities of $734,000, paid cash dividends of $70,000, and had capital expenditures of $280,000. Calculate the company's free cash flow.
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