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A box of mass m = 2.5 kg moves along a straight line through a vector displacement d = (7.0 i -3.8 j) m. One of the constant forces acting on the box has a value of F = (-2.1 i - 5.1 j) N.
What is the work done by this force as the box moves?
The current from an AC source is given by: I(t) = 6.50 sin(84.0 t + 1.090 ) mA, What would the phase shift be in degrees
An object of mass 2 kg and charge 40 microC is moving with initial speed of 5 m/s towards a fixed point charge of 30 microC which is fixed. Find the position of the object when it comes to rest
A solid homogeneous sphere of mass M = 3.20 kg is released from rest at the top of an incline of height H=1.57 m, Determine the rotational kinetic energy of the sphere at the bottom of the incline
From colonial times through the 1960s, the primary mode of mental illness treatment was institutional. What factors were responsible for this shift
If one arm of a Michelson interferometer contains a tube 2.5 cm long that is ?rst evacuated and then slowly FIlled with air (n=1.0003)
A small, 2.10 g plastic ball is suspended by a 20.0 cm long string in a uniform electric field E = 5.60×103 i N/C, If the ball is in equilibrium when the string makes a 15.0o angle with the vertical
Two children carry a lightweight 2.4m -long horizontal pole with a water bucket hanging from it. How far is the bucket from the older child
A mass m1 = 1 kg rests on top of a mass m2 = 5 kg which is attached to a spring (k = 50 N/m), Determine the maximum amplitude of the motion such that the top mass does not slip
A spherical weather balloon is filled with hydrogen until its radius is 3.40 m, Find the buoyant force acting on the balloon, assuming the density of air is 1.29 kg/m3.
In an experiment on the transport of nutrients in a plant's root structure, two radioactive nuclides X and Y are used. What is the half-life of isotope X
The center of mass of a proton with mass 1.673·10-27 kg and alpha particle with mass 6.645·10-27 kg is moving with a speed of 6.993×105 m/s
A 70.0 kg football player leaps straight up into the air (with no horizontal velocity) to catch a pass. how fast was the ball travelling
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