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An iron anchor of density 7870 kg / m^3 appears 200 N lighterin water than in air.
(a) What is the volume of the anchor?
(b) How much does it weigh in air?
A gasoline engine absorbs 4190 J of heat and performs 3170 J of mechanical work for each turn of the engine shaft
A particle with charge q is at rest when a magnetic field is suddenly turned on. The field points in the z-direction. What is the direction of the net force acting on the charged particle?
You are visiting a friend in the hospital and realize someone is following you. If you hare 2.50 m from the mirror and the focal length of the mirror is 75.0 cm, how far is the stalker really from you
a man drives a gar at a speed of 125.5 kmh. the man applies the breaks upon reaching this speed. if the combined mass
What is the horizontal distance x to the base of the wall supporting the mirror of the near point on the floor that can be seen reflected in the mirror . What is the speed of the third fragment? Overlook effects due to gravity.
a charge of 21 nc is uniformly distributed along a straight rod of length 4.3 m that is bent into a circular arc with a
A car is driven 125.0 km west and then 65.0 km southwest. What is the displacement of the car from the point of origin (magnitude and direction).
A piece of ice with a mass of 30 grams at 0° C is added to 100 ml of water at 20° C. Assuming no loss of heat to the surroundings, what is the situation when equilibrium is reached?
A 15.0 kg stone slides down a snow-covered hill (the figure ), leaving point A with a speed of 12.0 m/s. There is no friction on the hill between points A and B, How far will the stone compress the spring
A copper cylinder with a temperature of 277 K is found to emit 179 J of energy each second. what is its surface area
A small block of mass m1 = 0.5kg slides to the left, with a velocity of v1 = -8.40 m/s, towards a curved wedge of mass m2 = 3 kg which sits on an icy, frictionless lake surface.
The angular momentum of a flywheel having arotational inertia of 0.240 kg m2 aboutits axis decreases from 3.70 to 1.30 kg m2/s in2.10 s. What is the average power of the flywheel
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