Show that Ā. B = A,B¾ + A,By +A¿Bz

Q: I. Study the diagram below and answer the given questions. Fig 1 Fig. 2 3N 5N 8N 8N Fig. 3 4N 4N Que...

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Q: Object's mass is 15 kg is resting on a table. An external force ( 1O N) act with angle ( 30) on this...

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Q: 1. Oscar throws a ball toward a wall with a speed of 25 m/s at an angle of 40 degrees above ground. ...

A: Given, initial speed of the ball, u = 25 ms angle at which it projects, θ= 40° wall is at, R = 22 m ...

Q: A bicyclist is stopped at the entrance to a valley, as sketched below: Where would the bicyclist hav...

A: Given:

Q: :) A point charge Q = -30 nC is located at m. We want to find the electric field at location A m. ...

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Q: 12. A resistor has the following color code: red-red-orange-yellow-gold. What is its resistance? A. ...

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Q: A spool of iron wire 320 m long and with a diameter of 0.360 mm is at 20.0°C. For iron, the resistiv...

A: Given value--- length =320 m. diameter = 0.36 mm. resistivity = 10 × 10-8 ohm m. temperature coeffi...

Q: Calculate how much will it cost to light a 25 Watts light bulb for 110 minutes. The cost of electric...

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Q: A galvanometer has a coil resistance of Rgalv V = 275.0 V. If the galvanometer deflects full scale f...

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Q: A 1500-kg car drives around a flat 25-m-radius circular track at 10 m/s (approximately 22 mph). What...

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Q: What is the relationship between the power of a lens and its focal length? Group of answer choices P...

A: The relationship between the power (P) of a lens and its focal length (f) is  P = 1/f    

Q: When you are swimming at the bottom of a pool, the water above and around you exerts force on your e...

A: 1. we have to find out unbalance forces because of it pressure exerted on the eardrum. 2. two find o...

Q: 3. 4. How is lightning created? Which diagram best represents the charge distribution on a neutral e...

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Q: A bicyclist is stopped at the entrance to a valley, as sketched below: A. E D Where would the bicycl...

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Q: a. Compare the time it takes a feather and a bowling ball to fall to the ground if they are released...

A: 1.There is absence of gravity or gravitational acceleration inside the vacuum. 2. Newton's law of un...

Q: 10. Prove that the number of nodes for a vibrating string clamped at both ends is n – 1 for the nth ...

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Q: A spring with a spring constant of 30.0 N/m is attached to a rigid wall at one end and a 6.00 kg blo...

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Q: A bicyclist is stopped at the entrance to a valley, as sketched below: D Where would the bicyclist h...

A: We can answer only 3 subparts so we will answer only first 3. Please resubmit the question by specif...

Q: Describe the radial acceleration, tangential acceleration, and total acceleration vectors for a poin...

A: Let the radius of the point from the centre of the disk is r. The angular velocity is denoted by ω. ...

Q: A soccer ball is kicked from the ground with an initial speed of 19.9 m/s at an upward angle of 44.3...

A: Apply the second kinematic equation along the vertical direction and substitute the required values.

Q: The length and breadth of a rectangular sheet are 16.2 cm and 10.1 cm, respectively. The area of the...

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Q: A block with mass m1 hangs from a rope that is extended over an ideal pulley and attached to a secon...

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Q: When the dried-up seed pod of a scotch broom plant bursts open, it shoots out the seed with an initi...

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Q: Find the mass and center of mass of the lamina that occupies the region D and has the given density ...

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Q: One long wire lies along an x axis and carries a current of 54 A in the positivex direction. A secon...

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Q: A gracing car has ia uniforrm what distonce will it cover in 19 seconds oftrestthe t0gt2 accel/estat...

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Q: Problem 5: An electric current of I= 0.55 A flows through a long, straight wire. The wire lies in th...

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Q: Example - Tensile Force acting on a bone A force of 10 N is acting on a circular bone with diameter ...

A: Stress σ On an area A is given as σ= F/A ,where F is the force acting on that area .

Q: A container of mass 4 kg which holds water of mass 10 kg is full and is lifted vertically starting f...

A: Given container mass = 4 kg  water  mass mw =10  kg  Container is  lifted vertically starting from t...

Q: Solve the following problems. 1. A train moves from rest to a speed of 25 m/s in 30.0 seconds. What ...

A: Q.1  Initial speed of the train is Ui = 0 m/s  Final speed of the train is Vf = 25 m/s  time is t = ...

Q: What is the acceleration produced by a force of 18 N exerted on an object of mass 3 kg ?

A: Given data :                        Force  =  F                         Mass  = m                   ...

Q: Calculate the heat required to increase the temperature of 630 grams of ice from -2°C to 23°C and tu...

A: Mass of ice m=630 g, initial temperature of ice T1=-2oC=271 K, final temperature of steam T2=124oC=3...

Q: 1. A gas with a volume of 3.58×〖10〗^(-3)  m^3 was placed inside a container with constant pressure o...

A: Gas is in the influence of constant pressure and volume is expanding therefore work done can be writ...

Q: Three point charges are located as shown in the figure. 41-5 x 10-12 IC and d 6lcm) =-4 x 10-12 (C)a...

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Q: A sracimg car haea uniforrm what distonce will if cover in cað has acce/estation of dom)s? 4.

A: Given data :                      Initial velocity  =  u                            Time      =   t ...

Q: An object moves from position (3,4) to (6,5) in the xy plane. Find the magnitude and direction of di...

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Q: The uniform solid block in the figure has mass 35.8 kg and edge lengths a = 0.938 m, b = 1.44 m, and...

A: The length of the body diagonal of this object is, l = √(1.442 + 0.9382) l = 1.718 m The location of...

Q: Read and analyze the given situation. Show your solution and box your final answer. The metal plate...

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Q: Bone is a living tissue and has a blood supply as well as nerves. true false

A: Bone is a living tissue and has blood supply , true or false.

Q: A 200g bullet which has velocity 200 m/s sticks to the stationary block of 5 kg mass. They move toge...

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Q: A 45-caliber bullet shot straight up from the surface of the earth would reach a height of s(t) = 83...

A: According to guidelines we need to solve only first three sub-part kindly repost other parts in the ...

Q: Problem 3. Acceleration due to gravity. The distance covered by a body dropped from a height d with ...

A: Dependency of acceleration 'g' with time 't' and height 'h' is : d=12gt2 Distance covered d=1.00±0.0...

Q: Data and Result Part I. Keeping the total mass constant Experimental Value of g Trial M1 M2 Time A_e...

A: Given: a_exp F 0.71 196 1.37 392 1.98 588 2.76 784 3.43 980

Q: When the dried-up seed pod of a scotch broom plant bursts open, it shoots out the seed with an initi...

A: A) Apply the second kinematic equation along the vertical direction and substitute the required valu...

Q: 13. If a rocket is given enough speed to escape from Earth, could it also escape from the Sun, and h...

A: To answer this question first we need to understand the meaning of escape velocity. Escape velocity ...

Q: Situation 2. Balls A, B, and C are hanging in the ceiling as shown in the figure below 1. If Ball B ...

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Q: Q: Calculate the value of the debit current in the Shah circuit? ww R1 R4 ww V=25V R7 +100KOhm Rte R...

A: Lets find Rab= Resistance across a(initial junction point of R1 and R2) and b(junction point between...

Q: The resistance of a coil of copper wire is 3.35 S at 0°C. What is its resistance at 50°C. For copper...

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Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 4.10 g coins stack...

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Q: Calculate the mass of a car that drives at 21m/s and has 20000 J of energy ?

A: Given data :                  Kinetic energy  =  K•E                       Velocity  =  V           ...

Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.