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500 J of energy are transferred to a system in the form of heat while the thermal energy increases by 100 J . How much work is done by the system?
question1a sealed well-insulated 2000ml thermos bottle with negligible heat capability is completely empties - a
At a distance r away from a point charge q the electric potential V = 500.0 V and the electric field has a magnitude of 220.0 N/C
An unstrained horizontal spring has a length of 0.25 m and a spring constant of 180 N/m. Two small charged objects are attached to this spring, one at each end.
A man drags a 75.0-kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. Find the magnitude of the tension in the strap
A faulty model rocket moves in the xy-plane (the positive y-direction is vertically upward), Calculate the velocity vector as a function of time
A fish is 2 m below the surface of a smooth lake. What is the diameter of circle on the surface through which the fish can see the world outside the water
The construction of a flat rectangular roof (5.15 m × 7.44 m) allows it to withstand a maximum net outward force of of 2.33 × 104 N. At what wind speed will this roof blow outward
Two narrow slits are illuminated by a laser with a wavelength of 549nm. The interference pattern on a screen located x = 4.50m away , Calculate the distance between the two slits
Find the distance point P on the tip of the blade has traveled in 3 sec. Also, find the magnitude of the acceleration of point P when t = 3 sec.
Object O1 is 14.5 cm to the left of a converging lens with a 12.0-cm focal length. What is the focal length of the second lens
A dinoflagellate takes 5.2 s to travel 0.6 mm. Approximate a dinoflagellate as a sphere of radius 35.0 µm (ignoring the flagellum). What is the drag force on the dinoflagellate in seawater of viscosity 0.0009 Pa · s?
q1. to stretch a relaxed biceps muscle 2.8 cm requires a force of 25 n. find out the youngs modulus for the muscle
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