Q1: choose the best answer: 1- The most relevant force in solid state physics is: a- Gravitational force b- Column force c- Strong force 2- Which one of the following a- The honey comb lattice c- The simple cubic lattice 3- Thermal electron conductivity can be seen in: a- Semiconductors only c- Conductors only d- Choice b and c lattices is not a Bravias lattice? b- The face centered cubic lattice d- None of the above b- Insulators only d- choice a and c.

Q: Convert the following numbers to scientific notation. (a)    568,157 --- ✕ 10 --- (b)    0.000301…

A: (a) The scientific notation of the given number is,

Q: A flower pot is thrown down at a 4.00m/s and hits the ground in 8.00s. From what height was it…

A: initial speed (u)=4 m/s  time to reach ground(t)=8 sec  acceleration due to gravity (g) =9.8m/s2 let…

Q: Can you show me the conversions for this question, of how you got 33.56 hours?

A: 31479714.567feets divided by , 1,088 feets per second is ,  31479714.567feets1,088 feets per second…

Q: You are driving a car away from home. Your velocity (miles per hour) t hours after noon is given by…

A: Velocity as a function of time  is given by, Initially, at time , the distance traveled by the car…

Q: A ball is dropped off the top of a building and hits the ground 3.41 seconds later.  How far did it…

A: Known data: The time taken by the ball to hit the ground is t= 3.41 s The acceleration due to the…

Q: A car travels at a speed of 60 miles per hour in a northward direction for 5 minutes. It then…

A:

Q: Vesna Vulovic survived the longest fall on record without a parachute when her plane exploded and…

A: Total distance is 6 miles and 270 yards

Q: The correct conversion of speed limit of 65 mi/h in terms of SI unit is 1.609 km) (Given 1 mile= Oa…

A: Given, Speed, v=65 mi/h

Q: A van moves with an average speed of sav = 35 mi/hr. a) Express this speed in km/hr.  b)…

A: Average speed of a van = 35 mihr

Q: How many significant figures are in each of the following? a) 2.401 b) 0.0005337 c) 6.00 d) 5.1…

A: a) 2.401 Significant figures = 4 b) 0.0005337 Significant figures = 7

Q: A vector is added to The resultant vector is in the negative (-y) direction and has a B = 5î – 103.…

A: Let A→ = Axi^ + Ayj^B→ = 5i^ - 10j^Let resultant (R→) = -Ry j^

Q: 30 m/s Express your answer in miles per hour. ? mph Submit Previous Answers Request Answer

A: →speed given is V=30m/sec→we need to convert it into miles per hour

Q: If a marathon runner averages 7.2 mi/h, how long does it take him or her to run a 26.22-mi marathor

A: This is a simple problem of uniform velocity motion, the time taken by the runner can be easily…

Q: Convert 3.7 from g/m³ to SI units. Answer units

A: Given To convert 3.7 g/m3 to SI unit.

Q: A commuter plane starts frem in the figure . A, located 175 Km awan airport & takes the route shown…

A: The given commuter plane starts from the airport, located at the origin of the co-ordinate system.…

Q: &= 25 V & = 36V R-140 R-40 R-70 R-40 I=7A &= 20V F A)" T

A: