Estimate the fraction of electrons excite above the Fermi level at room temperature (T=300K) for Sodium and copper? Given the Fermi energy (EF) for sodium and copper is 3.1eV and 7eV respectively.

Q: Convert 155 km/hr to m/s Answer: 43 I.

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Q: Compute distance covered Speed=76 km/hr Time=5.5 hr

A: Given data : Time=t Speed=S   Required : Distance

Q: A heart beats 264 beats in 3 minutes. What is the unit rate?

A: Unit rate = Total number of heartbeatTotal time

Q: 987 m/s = = km/hr 4392 km/h = m/s

A:

Q: A car is moving at 35.0 mi/h. Express its speed in (a) m/s .

A: The distance an item travels in a unit of time is the definition of speed in physics. In other…

Q: The price of tomatoes at the grocery store is $3.14/lb.  What is the equivalent price per kilogram?…

A: SOLUTION AS

Q: A) answers for distance are not correct when I enter them

A:

Q: The speed of light is about 3.00 × 108 m/s. Convert this figure to miles per hour. (No Response)…

A: Given data:  Speed of light (c) = 3.00×108 m/s Required: Speed of light in miles per hour

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

Q: $800.45 equivalent in pennies. How do I solve this

A: V=800.45 $

Q: What does ratio (sin ∠i ) ÷ (sin ∠R), indicates

A: When a light ray travels from one medium to another medium then due to change in refractive indices…

Q: how did you get a to be 1/5g

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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: Rei Res=h

A: According to the question we have to find the value of Req.

Q: 3. Do the following values evaluate true or false? a. 0 b. 1 С. -1 d. X = 0 e. X == 0 // assume that…

A: Given: Values, as a) 0b) 1c) -1d) 0e) 0 To find: Which values can evaluate true or false.

Q: Convert 300m to km

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Q: A football field is 100. yd long. Convert this distance to Sl units.

A: The objective of the question is to convert the length of a football field from yards to meters,…

Q: Q.1. For the force system shown in Fig. 1, replace the two forces acting on the rectangular solid by…

A:

Q: If slug = 14.59 kg m = 3.28 ft, the pound (slug)(foot/s²) will be: %3D

A: Given-slug=14.59 kgm=3.28 ftSo,foot=13.28m

Q: Auniform rod 1 m long with weight 6 N can be supported in a hortzontal its ends. What is the…

A: Draw the free-body diagram of the system. Here, x denotes the position of the balance.

Q: Compute the route of a snail taking 1.9 m displacement at 18 degrees south east

A: The vector diagram of the snail's route is shown below. Here, d is the displacement vector.

Q: 122 km/hr = mile/hr

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Q: The mass of an ear ring is 950 mg. Express this mass in Sl unit. (a) 9.50 x 10-6 kg (b) 9.50 x 104…

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Q: Wh at if the height of an object is negative? -0.07 m?

A: Given data: The height of an object is hi=0.07 m.

Q: 987 m/s = km/hr 4392 km/h = = m/s

A: Given: Convert the following velocities  v1 = 987 m/s to km/hr v2 = 4392 km/hr to m/s

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

A:

Q: Is the answer 161.91W?

A: From the solution of previous problem, R1 = 23.314 Ω Using, R2=R1[1+α(Tf−Ti)]…

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: 42. Two vectors have a maximum resultant vector when they are O Parallel

A: Let us consider two vectors (A) & (B) and their resultant vector as (R) which is given by:-…

Q: (b) The magnitude of the resultant force acting on the bracket as shown in Figure Q1(b) is to be Fr…

A: We have three forces F1, F2 and F3 where F2=200 N, F3=260 N and resultant Fr=500 N making an angle…

Q: A component of a force is 238.16 N to the east. The force must be

A: Let,  the force F makes an angle Φ with East.  So, the component of force along East is      F. CosΦ

Q: A, = -4.00 km, A, = -8.00 km. Express your answer in kilometers. Vo AEO ? |A| JÄ = km

A: In component form, a vector A→ can be written as A→=Axi^+Ayj^ Where, the magnitude of the vector,…

Q: Evaluate (2+2i)8.

A: Introduction: DeMoivre's Theorem allows us to compute the powers and roots of complex trigonometric…

Q: 4 m2 = ? ft2 4 ft2 = ? m2

A: 1 m2 = 10.763 ft2. and 1ft2 = 0.0929 m2.

Q: Says 1.62 is wrong

A:

Q: A yacht is 57 m long. Express this length in feet. ft

A: Required : Length of 57 m long yacht in feet.

Q: A. Convert the following using table for prefixes. 1. 200 kg = 2. 6um = 3. 4 Tbytes = 4. 5 Mm = 5. 4…

A: We will convert the given units into the desired one by step wise approach.