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Problem: A point charge q = -8.0 nC is located at the origin.
Part A: Find the electric-field vector at the field point r = (1.2, -1.6) m.
I need expert help to solve the above problem.
A person of mass 75 kg stands at the center of a rotatingmerry-go-round platform of radius 2.6 m and moment of inertia 1500 kg·m2. The platformrotates without friction with angular velocity 2.0 rad/s. The person walks radially to the edge of the p..
At 20°C, a brass cube has an edge length of 35 cm. What is the increase in the cube's surface area when it is heated from 20°C to 81°C
A linear object that is h = 2.16 m tall is placed a distance a = 0.610 m from a small light source. A shadow is produced on a screen that is a distance b = 1.23 m behind the object. Compute the height of the shadow.
Aluminum rivets used in airplane construction are made slightly larger than the rivet holes and cooled by liquid nitrogen before being driven, find what should be the diameter of a rivet at 20°C
In a purely inductive AC circuit, L=25.0 mH and the rms voltage is 150 V. Calculate the inductive reactance and the rms current in the circuit
Jack was exposed to fast neutrons; he received a radiation dose of 300rem on part of his hand, affecting 28.0grams of tissue. How much radiation did Jack receive
A 62.00kg student is standing atop a spring in an elevator that is accelerating upward at 3.8 m/s2. The spring constant is 2600-N/m. By how much is the spring compressed.
A company is developing a new hard plastic material to replace glass in home windows. Find what conductivity should the plastic material have
A toy car of mass 4 kilogram is sitting stationary when a child rolls a toy truck of mass 6.5 kilogram straight towards it in the negative x-direction with a speed of 5 m/s. Find the velocity of the center of mass of the system consisting of the t..
In the Bohr model of the hydrogen atom, an electron (mass m=9.1×10^?31kg) orbits a proton at a distance of 5.3×10^?11m. How many revolutions per second does the electron make
The blade of a windshield wiper moves through an angle of 90.0° in 0.432 s. What is the magnitude of the centripetal acceleration of the tip of the blade
Assume that the sun runs out of nuclear fuel & suddently collapses to form a white dwarf star, with a diameter equal to that of the Earth. Estimate the new rotation period of the Sun.
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