(1.10) What is the angle between the two vectors A 2i2j+ k, B = 4i + 4j + 2k

Q: Two linebackers Lawrence Taylor (A) (110 kg) and Ray Lewis (B) (115 kg) are facing each other as…

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Q: Problem 1. A 1.5-kg grinding wheel 25.0 cm in diameter is spinning counterclockwise at a rate of…

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Q: 3. Consider the system shown in figure. Block A weighs 45.0 N and block B weighs 25.0 N. Once block…

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Q: A vector A has magnitude 5.4 meters and is directed 22 South of West. A vector B has magnitude 3.6…

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Q: The maximum wavelength of the energy emitted by the sun if the luminosity of the sun decreases by…

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Q: Compare between hydrothermal and solvothermal by using the properties ??

A: in this question  we compare  hydrothermal and solvothermal properties.

Q: 1. The image of a distant object is focused by a concave mirror 25.0 cm from it. (a) What is the…

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Q: What are the primary forces that act upon a baseball and a bat during their collision with each…

A: Option d is correct i.e force of ball on bat and force of bat on ball.

Q: A 4.80-kg bucket of water is accelerated upward by a cord of negligible mass whose breaking strength…

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Q: Part A: A chunk of metal with a mass of 260.5 g at 76.8°C is placed in 0.122 kg of water initially…

A: Given, mass of the metal, m = 260.5 gtemperature of the metal, T =76.8 °Cmass of the water, mw =…

Q: 10. Which diagram shows the path of a light ray in diamond (n = 2.42) when the light ray encounters…

A: When the light ray enters from a low refractive index of the material to a high refractive index of…

Q: A ball is thrown horizontally from the top of a building 0.10 km high. The ball strikes the ground…

A: Given: The ball throw horizontally. The height of the cliff is 0.1 km. The horizontal range is 65 m.

Q: 15. How many photons are emitted by a 5.00 mW laser in 10.0 s if the photons have a wavelength of…

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Q: 5. (I) What is the magnitude of the force a +25 µC charge exerts on a +3.0 mC charge 35 cm away?

A: Given Data ; The magnitude of the first charge is given as Q1=+25 μC The magnitude of the second…

Q: When figthing fires, a firefighter must use great caution to hold a hose that emits large amounts of…

A: The force causes a change in momentum and this rate of change of momentum equals the applied force.…

Q: Atwood's Machine. A 15.0-kg load of bricks hangs from one end of a rope that passes over a small,…

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Q: bottom! 1. A ball is dropped from a height of 1 m and loses 10 percent of its kinetic energy when it…

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Q: A large crate is being pulled up by a rope. If the velocity of the create is constant, the sum of…

A: Given Information The crate is being pulled up by a rope with constant velocity,

Q: Two objects with a mass of 1 x 10^-3 kg and 4 x 10^-3 kg have equal momentum. What is the ratio of…

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Q: The SI unit for force does not contain which of the following physical quantitates? (a)Quantity…

A: The SI unit of force is Newton which is equal to kgm/s2.

Q: 7. The 20-kg crate is subjected to a force having a constant direction and a magnitude F = 100 N.…

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Q: A ball is projected upward with an initial speed of approximately 40 m/s.  The diagram at the right…

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Q: 23.5 A small metal sphere, carrying a net charge 91 = -2.60μC, is held in a stationary by insulating…

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Q: a 100N block lies on a frictionless surface. A force of 50N was applied horizontally on the block…

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Q: An electron in the n=2 level of an hydrogen atom absorbs a photon of wavelength 410. nm. To which…

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Q: A 10 ft chain weighs 75 lb and hangs from a ceiling. Find the work done (in ft-lb) in lifting the…

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Q: 24. Carrier mobility is the ratio of the .......and

A: Required : Correct option.

Q: A circular flower bed has a radius of 5.45m. Compute its (a) circumference in feet and (b) area in…

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Q: Consider a beam of length L = 11 feet with a fulcrum x feet from one end as shown in the figure. Two…

A: Consider the clockwise direction of the moment as negative and the counterclockwise direction of the…

Q: In a photocell with a work function of 3.76 eV, the fastest emitted electrons have a speed of 1.35 x…

A: GivenWork function is W=3.76(eV)Maximum speed of electron is Vmax=1.35×106(m/s)

Q: 1kg mass attached to a spring is dropped from a height of 1m. The spring constant is 1700 N/m.…

A: Given: The mass of the object is 1 kg. The spring constant is 1700 N/m. The height of the object is…

Q: A 3-meter-long bar has an axis of rotation located at the center of its length. A force of 4.0…

A: Rotation is when body revolves around a fixed axis. All the particles of body go circular motion. A…

Q: The cable is subjected to a uniform loading of Determine the maximum and minimum tension in the…

A: in this question  we use equation  and put value them in.

Q: 45. In FET, .......supplies the carriers to the drain. O a. Channel. O b. Gate. O c. Source. O d.…

A: FET : The field-effect transistor (FET) is a type of transistor that regulates the flow of current…

Q: 3. A 4.80-kg bucket of water is accelerated upward by a cord of negligible mass whose breaking…

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Q: 44. In FET, .......control the resistance of the channel. O a. Base. O b. Gate. O c. Source. d.…

A: FET is a device in which the output current is controlled by the applied electric field. It has high…

Q: 15. How many photons are emitted by a 5.00 mW laser in 10.0 s if the photons have a wavelength of…

A: Given:-  16)  The object distance u = -35 cm  The focal length of the diverging lens f = -20 cm…

Q: 1. In the given triangle, charges Q1 = 50x10^-9 C and Q2= -40 X10^-9 were placed as shown. Find the…

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Q: can you go over part b again?

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Q: TO 4. The kinetic energy of an object varies jointly with the mass of the object and the square of…

A: Given, The kinetic energy of an object varies jointly with mass of the object and square of…

Q: A uniform horizontal beam with a length of 8.00 m and a weight of 200 N is attached to a wall by a…

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Q: A printing press has a roller 17 inches in diameter. A point on the roller's surface moves at a…

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Q: The maximum wavelength of the energy emitted by the sun if the luminosity of the sun decreases by…

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Q: If the power generated by a wind system at a height of 50 m is equal to 30 kw at a wind speed of 4…

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Q: 16. Given the following circuit, what is the voltage drop across the inductor? Hint: this is a…

A: 16) Determine the impedance of the circuit.

Q: 5. Atwood's Machine. A 15.0-kg load of bricks hangs from one end of a rope that passes over a small,…

A: Given: The mass of the load is 28 kg on the right side. The mass of the bricks is 15 kg.

Q: Under what situation is an object considered to be "accelerating"?

A: Acceleration of an object is defined as rate of change of its velocity.  When an object experiences…

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.