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Two massless bumper boats float with negligible friction in a pool, and carry three children, 1 in boat 1 and two in boat 2. Each child has mass, M.
The boats are initially moving towards each other but Boat #1 has a speed of V and Boat #2 has a speed of 1.5V.
The boats collide head-on and afterwards Boat #2 is stopped.
A resistor (R = 780 ohm), a capacitor (C =0.16 µF), and an inductor (L= 3.50 H) are connected in a series across a 60 Hz AC source for which ΔVmax = 150V. Determine the average power delivered to the circuit
A sinusoidal wave travels along a stretched string. A particle on the string has a maximum velocity of 0.900m/s, What is the frequency and amplitude of the wave
Cylinder 2 is attached to the ceiling and rotates without friction, and cylinder 1 hangs vertically. If M1 = M2, when the cylinders are released from rest and the tape unwinds off both cylinders, what is the acceleration of the center-of-mass of c..
Assume the magnitude of the magnetic field outside a sphere of radius R is B = B0(R/r)^2, where B0 is a constant. (a) Determine the total energy stored in the magnetic field outside the sphere. (b) Evaluate your result from part (a) for B0 = 5e-5 T a..
you are the navigator of a ship at sea. you receive radio signals from two transmitters a and b which are 94.0 km apart
A 15 kg flywheel has all its mass around its outer rim. A string is wrapped around it and a m = 3.7 kg weight is hanging on the string. The flywheel has radius R = 0.25 m. What is the angular acceleration at this point?
A planet of mass 6 × 1024 kg is at location ‹ -3 × 1011, 8 × 1011, 0 › m. A star of mass 9 × 1030 kg is at location ‹ 7 × 1011, -5 × 1011, 0 › m. What is the force exerted on the planet by the star? (It will probably be helpful to draw a diagr..
the electric potential at a position located a distance of 18.9 mm from a positive point charge of 8.70times10-9c and
A partcile is moving along the x-axis has a position given by x=(24t-2.0t^3)m, where t is measured in seconds. What is the magnitude of the acceleration of the particle at the instant when its velocity is zero?
A) If a fiber has a linear density of 4 Decitex, what is its linear density in both Denier and Tex? B) Calculate the density of a cylindrical fibers with 1.34g, a length of 150 cm, and a diameter of 0.20 cm.
The leg and cast weigh 290 -N, with the center of mass as indicated by the blue arrow in the diagram. The counterbalance w2 weighs 120 N. Determine the weight w1 and angle α needed in order that there is no force exerted on the hip joint by the le..
A parallel-plate capacitor with only air between the plates is charged by connecting it to a battery, A voltmeter reads 46.0V when placed across the capacitor, What is the dielectric constant of this material
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