A force of 7 pounds is required to hold a spring stretched 0.4 feet beyond its natural length. How much work (in foot-pounds) is done in stretching the spring from its natural length to 1.1 feet beyond its natural length?

Q: In the figure below, a small block is sent through point A with a speed of 9.5 m/s. Its path is…

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Q: A 2.0-cm-tall object is 20 cm to the left of a lens with a focal length of 10 cm. second lens with a…

A: Height of the object, Object distance,  to the left of the first lens.The focal length of the first…

Q: Nitrogen-12 decays through positron emission into this element: A N 13

A: Nitrogen-12 decays through positron emission. Find: After emission which element created.

Q: Unit vector is equal to:  a.   Vector divided by its magnitude.  b.   Magnitude divided by its…

A: The quantity which comprises of magnitude as well as direction, is referred to as vector quantity. A…

Q: 8. An object is placed 10.0 cm in front of a thin converging lens with a focal length of 8.0 cm.…

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Q: Question(s): The physics of a bike generator. A generator is mounted on a bicycle to power a…

A: Given Data:Radius of tire Area Magnetic field EMF To Determine:The linear speed of the bike.

Q: Light (A = 410 nm) passes through a slit of 5.0 x10-6 m and shine on a flat screen that is located…

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Q: The force of friction experienced by a 89.2 kg cross-country skier sliding on unwaxed skis along dry…

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Q: Assume that the universe consists of only two stars. At some time t2, the stars are separated by a…

A: The formula for gravitational potential energy is  U=-Gm1m2r where U is the potential energy, G is…

Q: Q) Consider a fiber optic in air with no = 1, n2 = 1.5. The acceptance angle of the fiber is 23.6°.…

A: The optical fibers are used for the purpose of transporting signals to large distances without much…

Q: The center of mass of a system is at x = 2 m. There are three point masses in the system. The first…

A: Given data:  Center of mass xcm = 2 m m1 = 0.002 kg at x1 = 0.5 m m2 = 0.006 kg at x2 = 1.2 m m3 =…

Q: In the figure, two 6.40 kg blocks are connected by a massless string over a pulley of radius 1.50 cm…

A: We are authorized to answer one Question at a time, since you have not mentioned which question you…

Q: There is an electric dipole in the presence of non-uniform electric field produced by a point…

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Q: One leg of a right triangle measures 11 cm. The hypotenuse is 1 cm longer than the other leg. Find…

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Q: add the vector

A: Let the three vectors be denoted as A, B and C.Resolve the three vectors along the coordinate axes…

Q: Ariel Time, s Byron

A: d) If the given graph represents the position and time graph then its slope at any moment will…

Q: Consider the semiare of charge shown in the figure, that has an opening angle of 0o = 47° and a…

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Q: 3. A rod of mass M and length L can slide without friction on two parallel rails as shown in the…

A: Required : The current in the system.

Q: Suppose we have a tunnel of 800 feet long in its rest with doors on each end which can be used to…

A: Length of train = 1000 ft Speed of train = 0.8 c Tunnel width = 800 ft

Q: onconservative pushing force does 58.0 J of work. How much work is done by the pushing force when…

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Q: In some rural towns a loud whistle will announce noon. If you set your watch by this noon whistle…

A: Distance, d = 5.6 km = 5.6×1000 m = 5600 m Speed of sound, v = 330 m/s

Q: Draw the vector

A: vectors(2d) can be represented in sheets or plane by drawing with proper magnitude and direction.

Q: An object is moving in a perfect circle at a constant rate so that it sweeps out 90⁰ in 0.3 seconds.…

A: Given:- An object moves in a perfect circle at a constant rate so that it sweeps out 90° in 0.3…

Q: 1. Heat flows from one body to other when they have A. different heat contents B. differ

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: 3. Which object has less rotational inertia? A solid metal ball whose mass is 0.17 kg and radius is…

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Q: Q2. a) The second Maxwell equation (M2) states that the divergence of a magnetic field is always…

A: a Divergence is a vector operator. The divergence of a vector field simply measures how much the…