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A 12 kg block is moving horizontally across a frictionless surface with a constant velocity of 25 m/s. It then hits a rough surface with a coefficient of friction of 0.3.
a. What is the acceleration of the block?
b. How far does the block move before it comes to a stop?
A block of weight 3.9N is launched up a 30%u2218inclined plane 2.35m long by a spring with k = 2.35 N/m and maximum compression 0.10m. How much kinetic energy does it have there
For a research project, a student needs a solenoid that produces an interior magnetic field of 0.0500 T. Determine the number of layers of wire needed
Omega resistor using a voltmeter having an internal resistance of 10.0 Omega. Elucidate what is the potential difference does the voltmeter measure across the 5.00 Omega resistor?
A ray of light strikes a thick sheet of glass (n= 1.5) At an angle of 25 degrees with the normal. Find the angle of the refracted ray within the glass
A vessel at rest at the origin of an xy coordinate system explodes into three pieces. Just after the explosion, one piece, of mass m, What is the direction of the third piece just after the explosion
A 150 ohm resistor is connected in series with a 0.250 H inductor. The voltage across the resistor is VR = 3.80 cos (720t) Volts. Derive an expression for the voltage VL across the inductor
two paths lead to the top of a big hill. one is steep and direct while the other is twice as long but less steep. how
A small mailbag is released from a helicopter that is descending steadily at 2.12 m/s. How far is it below the helicopter
An asteroid is discovered heading straight toward Earth at 13 km/s. An international team manages to attach a giant rocket engine to the asteroid. The rocket fires for 10 min, after which the asteroid is moving at 26 degree to its original path at..
Three charged particles are fixed to an x axis: Particle 1 of charge q1 = 2.1e-8 C is at position x=20 cm and particle 2 of charge q2 = 2.00q1 is at position x = 30 cm, particle 3 of charge q3 = -4.00q1 is at position x = 70 cm.
determine the properties required. show all work.a. substance ammonia given t 0.00degc and x 0.200 find v ?b.
The upward normal force exerted by the floor is 610 N on an elevator passenger who weighs 660 N. What is the reaction force to weight of the passenger
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