Why is science constantly changing?
Q: O. 8: A van is moving with a speed of 108 km/hr on level road where coefficient of friction between ...
A: To find-Radius (r)=?Given-Speed of car (V)=108 km/hrV=108×10003600m/sV=30 m/sCoefficient of friction...
Q: Q. 56 : If the density of the earth is doubled by kipping its radius constant, then the new accelera...
A: Given: Density of the Earth get doubled, Radius of Earth is constant To find: New acceleration due t...
Q: Let a = x/A, where A is a constant with units of length. Find a definition of A that simplifies our ...
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Q: Seven identical charges q = 4.5 µC are connected with identical rigid strings as shown below. The di...
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Q: If the free end of the pulley rope is pulled down with an acceleration of 4 ft/s2, what will the acc...
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Q: Which heat engine has the larger efficiency? Engine 1 Engine 2 P- P2 Can't tell without knowing the ...
A: Given data, Given two heat engines with their PV curves.
Q: When equal masses of two substances are mixed, the resultant density is 2.5 g/cm3. When equal volume...
A: Let the densities of the two substances be ρ1 and ρ2 and the density of the mixture is ρSame Volumes...
Q: Calculabe the percentage monochromatic intensity la when the light passes through the lager adecreas...
A: When light passes through some material, it interacts with the atoms present inside the material. So...
Q: Q16 A car is moving around a horizontal circular track which is banked as shown. Its speed is consta...
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Q: If a baseball player throws a ball a horizontal distance of 100 m in 4 seconds at 45° latitude, by h...
A: This is a question of body moving in a non inertial frame especially in a rotation frame. To solve t...
Q: *2-8. Resolve the force F, into components acting along the u and v axes and determine the magnitude...
A: Vectors are quantities that have a magnitude and a direction. Thus, vectors can be broken down into ...
Q: Ex11 : The equation of a simple harmonic progressive wave is Y = 4 sin 2n %3D 0.002 35 where x and y...
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Q: A model rocket is launched straight up from level ground. The engine of the rocket burns for about 3...
A: To find the time after which it hits the ground, we need to find the height to which the rocket rise...
Q: Ex 45: A simple harmonic progressive wave of amplitude 10 cm and frequency 1000 Hz is travelling wit...
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Q: 3 - Given a scalar field T = (x +3)y² sin(2z) and a vector field Ä = ryi + y²(z+5)k, calculate (3) t...
A: The gradient function is given by: ∇⇀=i^∂∂x+j^∂∂y+k^∂∂z Thus, we will use this expression to solve t...
Q: 1. A luggage belt at the Calgary International Airport begins at ground level on the tarmac and must...
A: NB: More than one unrelated question has been asked, so the 1st one is answered. Please resubmit the...
Q: 0405 What is to the proper number of significant figures? 0.76
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Q: 16. The superposition of two waves, y, =(2x 10 *m) sin 2m and 170 Y2 = (2x10 ,results in a standing ...
A: Given, y1=2×10-8sinπx2-170y2=2×10-8sinπx2+170 Resultant of two waves, y=y1+y2y=2×10-8sinπx2-170+2×10...
Q: 7. Two boathouses are located on a river, 1.0 km apart on the same shore. Two men make round trips f...
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Q: What is the angle (in degrees) between the bonds based on this new data?
A: Given that the new adjacent bond vectors are A= 0.8i+0.85j+1.05k B= 1.05i+(-0.87)j+(-0.96)k...
Q: QUESTION 1 Since the "Deflategate Controversy" in 2015, the official ballgame testing rules for the ...
A: Solution: The air pressure of the football ballgame is now checked three times to ensure that the or...
Q: Learning Goal: To understand the meaning of capacitance and ways of calculating capacitance Part E W...
A: Solution: PART E Considering a parallel plate capacitor, the distance between the plates is d, and t...
Q: Determine the possible wavelengths of hydrogen atom spectral lines emitted when an energy 14.45 eV a...
A: The following data are given: Energy of the spectral lines, ∆E=14.45eV Rydberg constant, R∞=1.097×10...
Q: 1- calculate the matrix (mlp2|n > and (m|x²|n > then find the matrix of kinetic and potential energy...
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Q: Check My Wc Number 14 copper wire has a resistance of o.ooo2525 2/ft. If the total resistance of the...
A: Given, The resistance per feet of copper wire is R1 = 0.0002525 ohm/ft Let R denote total resistanc...
Q: Light of varying wavelength hits the surface of a metal. Match each wavelength of light with the obs...
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Q: Water flows steadily from an open tank as shown in the figure 12. The olevation of point 1 is 13 met...
A: Concept: The Question will be solved using Bernoulli Equation For Point 1 and Point 3. The Equation ...
Q: For the capacitor network shown in (Figure 1), the potential difference across ab is 63 V. Part E Fi...
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Q: Two oppositely charged but otherwise identical conducting plates of area 2.50 square centimeters are...
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Q: 1.1 What is implied when the current direction is based on the electron theory? When it is based on ...
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Q: Ex. 125 A body cools from 75°C to 55°C in 10 min when the temperature of the surrounding is 31 °C, a...
A: This problem is based on Newton's law of cooling Initial temperature, T0=75°CFinal temperature, T=55...
Q: Which one of the following expressions may be used to correctly find the angle 0 in the drawing? 6.0...
A: Using the trigonometry ratio rule, sinθ=phcosθ=bh and from Pythagoras theorem b=h2-p2 Now from the ...
Q: Biomedical Application. The parts of the body that are most sensitive to electric currents are the b...
A: Electrical Insulator is a material which doesn't readily carry electric current, it offers high resi...
Q: : The equation of a simple harmonic progressive wave is Y 4 sin 2n 0.002 35 where x and y are in cm ...
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Q: In order to prevent muscle contraction from misaligning bones during healing (which can cause a perm...
A: Given: W=47 N
Q: 2. Determine the latent heat of 1 English ton of ice. 3. Determine the required heat in BTU, for the...
A: As directed only number 3 has been done. mass of water, m=1 English ton=1016.05 kg specific heat cap...
Q: Q5. Applying Newton's second law of motion, F=ma, to the falling mass Mi GM1ME F gravity = M19- (1) ...
A: Given,Fgravity=GM1MER2=M1gR=6.378×106mG=6.67×10-11Nm2/kg2
Q: 10. For ceramic MgO, the ionic radius for Mg? and O are 0.072 nm and 0.14 nm, respectively. Given e-...
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Q: Ex. 74: Calculate weight of body of mass 20 kg at as depth half way to centre of earth. (g = 9.8 m/s...
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Q: Purpose: To analyze results of different methods of vector addition. Resultant R (magnitude and dire...
A: The various force vectors and corresponding angles are given as, SET-1: F1=0.2 gN and θ1=30o, F2=0.2...
Q: A satellite circles the earth in an orbit whose radius is 4.25 times the earth's radius. The earth's...
A: Given, Mass of the Earth ME = 5.98 × 1024 kg Radius of the Earth RE = 6.38 × 106 m ...
Q: Vba VhVha Va 4 5 6 + 1 b- b- b- 29 + -3q + 3. +
A: The potential difference between the two plates=VBA With reference to the figure in the left hand si...
Q: (b) The values of t at which the instantaneous velocity is zero. Enter your answers in increasing or...
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Q: An aluminum-alloy rod has a length of 6.4562 cm at 12.00°C and a length of 6.4774 cm at the boiling ...
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Q: In the methane molecule, CH4, each hydrogen atom is at the corner of a regular tetrahedron with the ...
A: This problem can be solved using the formula for dot product of two vectors.
Q: A football player has an initial speed of 8 m/s and is stopped by a defensive lineman in a time inte...
A: Given that,The initial speed : u = 8 (m/sec)The final speed : v = 0 (m/sec)Time : 0.2 (sec)Here we n...
Q: Ex 39 : A capillary tube of uniform bore is dipped vertically in water which rises by 7 cm in the tu...
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Q: 1.5. If a baseball player throws a ball a horizontal distance of 100 m in 4s at 30° latitude, by how...
A: When an object rotates than Coriolis force act on the object. Coriolis force is depends upon the rat...
Q: Replace the force system acting on the post by a resulta force and couple moment at point O. Take F ...
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