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A child in a boat throws a 5.45-kg package out horizontally with a speed of 10.0 m/s. The mass of the child is 26.8kg and the mass of the boat is 39.0kg. Calculate the velocity of the boat immediately after, assuming it was initially at rest.
A coffee filter of mass 1.2 grams dropped from a height of 3 m reaches the ground with a speed of 0.7 m/s. How much kinetic energy Kair did air molecules gain from the falling coffee filter.
Find the thermal efficiency and the specific work of a simple Rankine cycle if the maxium temperature and pressure are 1050oC and 5.0 MPa and the minimum pressure is 20 kPa.
Two resistors, of R1 = 2.93 ? and R2 = 6.69 ?, are connected in series to a battery with an EMF of 24.0 V, Find the current I1 through the first resistor
Two point charges of +1.0nC (located at x=1.0m), Calculate the magnitude of the net electric field at the apex of the triangle
Two blocks are connected by a string. The smooth inclined surface makes the angle of 35 degrees with the horizontal, and the block on the incline has a mass of 5.7 kg.
We have a container of compressed air. Assume that air is a diatomic ideal gas. The volume of the container is 1.35 liters. Find the final volume of the gas
You're designing a highway so that the maximum centripetal acceleration on a curve is no more than 1.0 m/s^2. What is the minimum curvature radius to accommodate a 100 km/h maximum speed? Please show the answer and how you got it!
A 8.6cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.64T pointing up. What is the average induced emf in the coil
A small coil has a cross section of 5.5 cm2 and consists of 8 turns of wire. If the loop carries a current of 180 mA, what is the torque required to hold the loop
Rivets can be cooled before they are put in place, thus when they reach equilibrium temperature they are more firmly fixed in place. If the volume expansion of iron is 35.0 X 10-6 K-1
Electrons are accelerated from rest through a potential difference of 350 V and then enter a uniform magnetic field that is perpendicular to the velocity of the electrons. Estimate the period of this circular path
What is the acceleration of a 1.00 gram drop of blood in the finger tips at the bottom of the swing? Find out force that the blood vessel must exert on the drop of blood in part (a)
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