The critical angle of diamond-air boundary is 24°. Which incident ray of light shown below will have an angle of refraction equal to 90°? F 240 Air 24 50° E D Diamond Select one: a. F and D b. E only c. D only

Q: 25.4 m 4 km hr hr

A: Given data: 25.4 mi/hr - 4 km/hr Here mi/hr - miles per hour km/hr - kilometer per hour

Q: 146.88 What is The answer in 2 significant figures?

A: The value 146.88 can be written as,

Q: A car starts from the origin and is driven 1.25 km south, then 8.75 km in a direction 57° north of…

A: Given value--- firstly driven 1.25 km south, then 8.75 km in a direction 57° north of east. We…

Q: That's not the correct answer! The answer is 45 m

A: P = 1.3 MW v = 9.5 m/sCp = 0.36rho = 1.225 kg/m^3

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A: Given Mass of man m = 176 lb To find  Weight of man in Newtons

Q: Convert 21 m/s to km/hr.

A: Given data:  21 m/s Required: The value of 21 m/s in km/hr

Q: If a vector has a x-component = - 53.7 m and a y- component = -12.3 m, what is the direction of the…

A: The vector diagram for the provided vector is:

Q: N vs. TIME graph below, click on the spot where the VELOCITY IS ZERO (the arrow will be placed where…

A: Introduction: When the body does not gets displaced with time, the velocity is said to be zero. So,…

Q: Vector A = 3+39+2 and B = -4£ – 2ŷ + 52. Find the dot product and the cross product of A and B.

A: Given: Vector A→=3x^+3y^+z^ and vector B→=-4x^-2y^+5z^

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: A vector has an x-component of 2.64 and a y-component of 4.58.  The magnitude of the vector is:

A: The objective of the question is to find the magnitude of a vector given its x and y components. The…

Q: 122 km/hr = mile/hr

A:

Q: Convert 41.4 m/s to units of km/hour.

A: Given data:  Speed (v) = 41.4 m/s Required: Speed in units of km/hr

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…

A:

Q: The uniform bar has a mass m (given below) and length L (given below). It is released from rest at…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

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…

A:

Q: 7. A space station, in the form of a wheel 120 m in diameter, rotates to provide an “artificial…

A:

Q: 23 m/s to km/hr?

A: Given 23 m/s we have to convert into km/hr as we know 1km=1000m so 1 m=11000km 1hr=60 min=3600 sec…

Q: A force 4 N making angle 45 with x axis. The y component is?

A: Answer Given  Force  F = 4 N Angle θ = 45º with x axis we have to find y component.

Q: A vector has an x component of -24.5 m and a y component of 31.9 m. Find the magnitude and direction…

A: 1st part solution:

Q: Vector A = 7.4 i + 3.2 j.  Vector B = 3.7 i - 7.1 j. Calculate the angle between the two vectors in…

A: Given data The vector A is given as A = 7.4 i + 3.2 j The vector B is given as B = 3.7 i – 7.1 j.…

Q: 3. A 5 kg block is initially at rest on a horizontal frictionless surface. Two forces, F = (4 – x²)î…

A: The total force on the block is the sum of two forces, i.e. F→=F→1+F→2F→=4-x2i + 4 j     (1)…

Q: Verify the following relations for cylindrical coordinates u = r, v = 0, w = z: a) the surfaces r=…

A: The relation between cylindrical and cartesian coordinates is,   r=x2+y2               z=z x=rcos(ϕ)…