The activity of a newly discovered radioactive isotope reduces to 96% of its original value in an interval of 2 hours. What is its half-life? a) 10.2 h b) 34.0 h c) 44.0 h d) 68.6 h

Q: 401 75 1 R m Ru w Hon {R 2 if R=300, find Req between 1 and 2

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Q: Find a unit vector that is perpendicular to both a -i+jand b-i- 2j + k.

A: A unit vector has a magnitude of one. There are no units or dimensions in a unit vector. We have the…

Q: How do I convert

A: 5.1 kg = 5.1 * 1000 g             = 5100 g  [(5100 g + 730 g ) *180 m^2 ] / 12 m  = 5830 g * 15 m  =…

Q: Arhinoceros is at the origin of coordinates at time t;=0. For the time interval from ty to ty=14.0…

A:

Q: Problem 1.56Compute the line integral of v=6+yz²ŷ+ (3y+z) 2 along the triangular path shown in Fig.…

A: Solution: Let us calculate the curl of the given vector v. v=6x^+yz2…

Q: ¿Be + H > + He

A:

Q: 5. Find the elevation and distance from the centerline for the point P (drawing not to scale). 1 q 1…

A: Elevation at point Q,   ElQ=478-0.114+14+5ElQ=474.7ft Let the distance between points Q and P be d.…

Q: V OT OP S

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Q: if A=9,8 â+7,3 ây+2 âz and B=9 â +7,9 ây +7,2 â . if A x B=K â+Lây + Mây, then L=? Yanıt:

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Q: I put sin15 in my calculator and I got .2588?

A: Given that, 0.500=T1Sin(15°)

Q: A proton (q = 1.60 x 10-1º C, m= 1.67 x 10-2" kg) move in a uniform magnetic field B = 0.500 Tî . At…

A: Given information: The magnetic field (B) = 0.500 T i The electric field (E) = -3.00 ×104 i V/m The…

Q: You are given the equation(s) used to solve a problem. Write a realistic problem for which this is…

A: We have to set up a problem that will provide a solution given in the question. By identifying the…

Q: 16. How many significant figures are there in 60.5? Express your answer in numbers (1,2,3,4,5, etc.)…

A: (16) The quantity is given as x=60.5

Q: 4 Пу. i = 1´ i b. 4 II y. · * i = 1´ i d.

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Q: Determine the number of significant figures in the following numbers. a. 6.12 b. 4.009

A: Given data:  Two numbers 6.12 and 4.009 Required: The number of significant figures

Q: 8. An object is dropped and hits the ground 6.00 seconds later. From what height was it dropped?…

A: Time taken by an object to hit the ground=6 s Required height of object from which it was dropped.

Q: Fill in the missing number. 123 1 2 ?

A: We have to find the missing number in the following series.  1 2 3  1 2 ?

Q: The collisional stopping power of an electron with kinetic energy T = 1.489 MeV in Mercury (Z=80) is…

A: Given, The kinetic energy of electrons is T=1.489MeV=1.489×106eV The atomic number of mercury is…

Q: Which of the following has the most significant figures? A: 124.12 B: 124.10 C: 3.05 x 105 D: 1205…

A: The objective of the question is to identify which of the given numbers has the most significant…

Q: 1. Find the angle between each of the following pairs of vectors: A = -21 + 6) and B = 21-3ĵ A = B =…

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Q: 17. 1.2 x103÷ 2.5 x 109 = ? A. 4.8 x10-13 B. 4.8 x105 C. 3.0 x 10-13 D. 3.0 x105

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Q: The result of dot product of two vectors is: O a. a vector quantity Ob.a scalar quantity O c. dot…

A: The dot product of 2 vectors is the component of one vector along the other vector.

Q: 5. If a marathon runner averages 6.5 mi/h, how long does it take him or her to run a 26.22 mi…

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Q: eif A-2itj-k B=i+2j+ 5k calculate A.B

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Q: 17. How many significant digits in 1.1372 x 101° m³ ? *

A: The all non zero digits in a numbers are significant.

Q: Two vectors have the following magnitude, A = 6.4 m and B = 9.0 m. Their vector product is: What is…

A:

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: Find angle between two unit vectors A and B. A = 10i-3j-15k; B = 13i-5j+3k

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Q: What mass in kg of rain falls on the lawn in 6 h and 2 min, if each raindrop weighed 13.0 ng and on…

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Q: Compute the combined moment of the two 85-lb forces about (a) point O and (b) point A. The moment is…

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Q: 5.00 m 3.20 m 2.00 m Figure P8.3 3. A block of mass m = 5.00 kg is released from point @ and V…

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Q: What is eqavilent to 8.0(1m=100)

A: We have, 1 m = 100 cm

Q: Part C Enter the expression -20 + 6D in the answer box using the notation just described. Express…

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Q: 3 300M 300N 50 50° Find: B+ C F=?,

A: Please see the answer in next step

Q: f. Convert 3.056 yd² into m². N

A: The objective of the question is to convert an area measured in square yards into square meters.

Q: If the vector = 5 N and the angle with x-axis is ?= 36.80, then the rectangular form of the vector…

A: Given,Magnitude of the vector, R = 5 NAngle with the horizontal or with x - axis, θ = 36.80°

Q: Incorrect Question 8 0/ 1 pts Side A=43 and Side B=12, Calculate side H. Give your answer to 1…

A: Given: Side 1 (A) = 43 Side 2 (B) = 12

Q: b. Convert the following. Show complete solution. 1.44.5 cm to mm 2. 65kg to mg 3. 14 mg to g 4.…

A: 1. Converting 44.5 cm to mm as, ∴1 cm = 10 mm⇒44.5 cm10 mm1 cm⇒445 mm Thus, 44.5 cm is equal to 445…

Q: 7. What are (a) the x component and (b) the y component of a vector in the xy plane if its direction…

A: Given: magnitude of vector: 7.3 m direction: 250o CCW from +ve x-axis

Q: 7. Solve for unknown parameters 30

A: solution is given as

Q: (a) A certain microstrip line has fused quartz as a substrate. If the operating frequency is 10 GHz…

A: The operating frequency=10 GHz=10×109 Hz Phase constant=676.15 rad/m Phase velocity: it is the ratio…

Q: If B is added to A, the result is 8.81 +3.0ĵ. If B is subtracted from A, the result is -4.61 +5.6).…

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Q: Find the speed of a car that is moving with a speed 115 km/h in the units of mile/h. use 1mile= 1609…

A: 1 Km = 1000 m Speed(v)= 115 Km/hr              V = 115 ×1000 meter/hr Now, 1609 meter = 1 mile So,…

Q: Find the angle between A = 10a + 2a_and B = – y 4a + 0.5a¸ , using dot product. y

A: we have following data as given in question A→ = 10ay→ + 2az→ B→= -4ay→ + 0.5az→ Dot Product - Dot…

Q: d = vt

A: given equations = d = v t here d = distance           v = velocity          t = time