Why is the sky blue during fair day and why is it red during sunset?

Q: A string that is stretched between fixed supports separated by 61.1 cm has resonant frequencies of…

A:

Q: 15 in. The required tension in cable AB is 200 lb. (Note: Point C is a pin joint.) D Draw a free…

A:

Q: The figure shows a metallic block, with its faces parallel to coordinate axes. The block is in a…

A: given data magnetic field = 0.021 T one edge length of block = 25 cm  block moved at 2.5 m/s to the…

Q: s, m1 and m2, are attached to a 1.95-m-long steel wire which runs over a light, frictionless pulley…

A: GivenL=1.95 md=4 mm=0.004 mm1=3.3 kgm2=4.9 kg

Q: What is the difference between the Helmholtz coil and Solenoidal?

A: A solenoid is just one coil of wire, usually wound around an iron core , often used as an…

Q: An object sinks when it displaces a volume of liquid that has a weight ? A) equal to the objects…

A: (b) option is correct.

Q: You have a beaker with a layer of olive oil floating on top of water. A ray of light travels through…

A:

Q: A small spotlight mounted in the bottom of a swimming pool that is 4.1 m deep emits light in all…

A:

Q: Compute the normal acceleration when he reaches the bottom of the profile.(m/s^2)

A: Note that the equation of parabola does not match the sketch, because according to sketch, y=0 at x…

Q: 6. If the potential difference across a resistor is doubled, the resistance is also doubled. A.True…

A:

Q: A

A: Near point=13.5 cm=13.5/100=0.135 m Far point=117 cm=117/100=1.17 m

Q: The half-life of a radioactive isotope is the amount of time it takes for a quantity of radioactive…

A: The amount of radioactive material left after decay for some time is given by A = Aoe-λt, where A =…

Q: A dentist wants to purchase a small mirror that will produce an upright image of magnification +4.0…

A:

Q: Two forces are acting on an object at the same point. Determine the angle between the two forces.…

A:

Q: When the structure shown below is supported at point P, it is in equilibrium. Find the magnitude of…

A: a) For rotational equilibrium about the pivot point p ccw moment = cw moment (6900*2.0) =…

Q: You wake up in a strange room, and this time you drop a ball from a height of 1.74 m, and observe…

A:

Q: How much work is done (by a battery, generator, or some other source of potential difference) in…

A:

Q: 1. (30 pts) As shown in Figure 1, a block with mass m 3.5 kg is placed on a horizontal surface at…

A:

Q: Part A Two people are standing in front of a rectangular plane mirror. Each of them claims that she…

A: In this problem, it is asking that is it possible to see another person image if two people are…

Q: If The pot emtial aliff era ve nce bet wween the t of m electric motor Ls 245V is flowing.hrooth…

A: Given  Potential difference between the terminals of electric motor V = 245 V Electric current  I =…

Q: A 150 kg bucket is lowered vertically by a rope in which there is 166 N of tension at a given…

A: Given that              The mass of the bucket is (m) = 15Kg              Tension on the rope is (T)…

Q: A coil of radius 0.5 m consisting of 1000 loops is placed in a 500 T magnetic field such that the…

A:

Q: 1. A 0.5 kg ball is attached to a 0.75 m long string and is being rotated in a horizontal circle…

A: Write the given values with the suitable variables. m=0.5 kgr=0.75 mv=7 m/s Here, m is the mass, r…

Q: Two objects of masses m, - 0.42 kg and m, = 0.90 kg are placed on a horizontal frictionless surface…

A:

Q: A women puts on a pair of figure skates and then a pair of running shoes. Assuming that she is…

A: P= F/A Where:- F= force exerted by the women= women's weight= W A= Area of contact. As women's…

Q: Red Orange Yellow Green Blue Violet Medium (660 nm) (610 nm) (580 nm) (550 nm) (470 nm) (410 nm)…

A:

Q: A hunter can't clearly see anything that lies farther than 37.6 cm from her eye. Suppose that she…

A: Lets say the person wants to see objects that are placed at infinity, but the person only can see…

Q: A proton travels through a 0.75 T magnetic field in a circle with a radius of 0.30 m.  What is the…

A:

Q: 1 Which of the following are true regarding Earth’s magnetic field? Check all that apply.     the…

A:

Q: f 12V between the plates. The charging battery is disconnected and a porcelain slab (k = 5) is…

A: We know that the formula of the energy stored by the capacitance is given as  U = 12CV2 where C is…

Q: It takes 4 hours for a boater to travel 15 miles upstream and back. If the speed of the boat in…

A:

Q: Find the moment of inertia of a rod with a mass of 0.5 kg and a length of 0.75 m when rotated about…

A: Given data:  A rod Mass (m) = 0.5 kg Length (L) = 0.75 m Required: The moment of inertia about its…

Q: A stone weighs 450 N in air and 200 N in water. What is the volume of the stone? The density of the…

A: weight of stone in air = 450 N weight of stone in water = 200 N density of water = 1000 kgm3

Q: A particle is moving with speed y = bvx along positive x - axis. Calculate the speed of the particle…

A:

Q: A ball is thrown horizontally from a cliff at a speed of 10 m/s. You predict that its speed one…

A:

Q: In a particular diffraction pattern, the yellow component (λ = 585 nm) in the fourth-order spectrum…

A: Given: Wavelength of light λ=585 nm, Order of spectrum m=4, Deviation angle θ=40°. Required: Number…

Q: Topic: Magnetic Field along the Axis of Circular Coil Carrying Current Question: What is Tangent…

A:

Q: Determine the capacitance if the voltage of the battery is 12 V and the charge is 5.0x10^-5C A.…

A:

Q: Use ray diagrams and the mirror equation to locate the position, orientation, and type of image of…

A:

Q: A paramagnetic material has 1028 atoms/m3. Its magnetic susceptibility at temperature 350 K is 2.8 x…

A: The required susceptibility is 3.267 x 10-4. Please see the working below.

Q: Please select all that are correct Select one or more: a. Spiral motion happens when both tangential…

A: a Linear tangential speed depends on the distance from the center. So, spiral motion happens when…

Q: SITUATION O1. GIVEN: Welght of the man 67.50kg Velocity Equation V 20(6.33- y); where y is the…

A:

Q: apacitors in the circuit below are initially uncharged. you then apply a voltage, Vab = +100V, t the…

A: Given: Vab=100 vSwitch is never closed , means no current will pass through CD

Q: The half-life of a radioactive isotope is the amount of time it takes for a quantity of radioactive…

A: Ans (a) in this question half life of c-14 is given as 5230 years so    Thalf=5230y and we know the…

Q: A horizontal pipe has diameter of 3.01 cm in one portion in which  the pressure is 5,285 Pa and the…

A: A horizontal pipe has diameter of 3.01 cm  in one portion in which  the pressure is 5,285 Pa  and…

Q: A boat's velocity, measured in meters per second, is described by vector b = (-3, –4). In two or…

A: Boat's velocity vector=(-3,-4)

Q: What is the difference between interference and Diffraction? -Illustrate on how interference and…

A: What is the difference between interference and Diffraction?-Illustrate on how interference and…

Q: Use ray diagrams and the mirror equation to locate the position, orientation, and type of image of…

A:

Q: Part 5: Distance and Displacement Review 2 Chave covered this yeari ternet (make sure you Distance…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub parts for…

Q: How many calories are developed in 1.0 min in an electric heater which draws 5.0 A when connected to…

A: Given that, Time(t)= 1 m= 60 s Current (I)= 5 A Voltage (V)= 110 v From ohm's law V= IR Where R is…