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Q1. Tony (of mass 55 kg) coasts on his bicycle (of mass 20 kg) at a constant speed of 4 m/s, carrying a 12 kg pack. Tony throws his pack forward, in the way of his motion, at 3 m/s relative to the speed of bicycle just before the throw.
What is momentum of the system immediately after the pack is thrown?
reply in units of kg • m/s
Q2. A 18.0cm x 18.0cm square loop of wire lies in the xy-plane with its bottom edge on the x-axis. The resistance of the loop is 0.470. A magnetic field B parallel to the z-axis is given by 0.810*t*y^2, where B is in tesla, y in meters, and t in seconds. What is the size of an induced current in the loop at = 0.540?
The magnetic field component of the electromagnetic wave is 15.0 uT. What is the magnetic energy density of the wave
A 310 kg weather rocket is loaded with 100 kg of fuel and fired straight up. It accelerates upward at 28.0 m/s2 for 32.0 s, and then runs out of fuel. Overlook any air resistance effects.
Considering just the Sun and Jupiter, determine the radius of the circular orbit the Sun makes about the Sun-Jupiter center of mass
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compute approx the rate of heat transfer on to the window surface if the inside surface is maintained at 5 Deg C?
An empty capacitor is capable of storing 1.0 × 10-4 J of energy when connected to a certain battery. If the distance between the plates is halved and then filled with a dielectric, how much energy could this modified capacitor store when connected..
A fire in an enclosure has reached flashover, & the gas temperature is assumed to be uniform at 1000oC. The enclosure has an opening 3 m wide & 2 m high. Find the position of the neutral layer, measured from the bottom of the opening.
A geologist searching for oil finds that the gravity at a certain location is 8 parts in 107 smaller than average. Estimate the size of the deposit
A standard 100 W (120 V) lightbulb contains a 9.90cm -long tungsten filament. The high-temperature resistivity of tungsten, What is the diameter of the filament
The coefficient of kinetic friction between the lighter block and the plane is 0.10 the lighter block leads, find the tension in the taut string
A point P is on a rim of a wheel of radius 2.0m. At time t=0 wheel is at rest and P is on the x-axis. The wheel undergoes a uniform angular acceleration of 0.01 rad/s2 about the center O. Find out the time t, when P returns to an original position on..
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