A car, initially traveling at 8 miles per hour, comes to rest in 7.5 s. What was its acceleration in this time?

Q: 12. Calculate the center of mass of a 4 m long aluminum bar with cross-sectional area of 4 cm x 4 cm…

A: Given Data:  It is given that the length of the uniform bar is, L=4 m.  Axis of rotation is located…

Q: In the figure below, the switches S, and S, are closed simultaneously at t = 0 and a current starts…

A:

Q: 2. A playground is on the flat roof of a city school, 6.00 m above the street below. The vertical…

A:

Q: B A coin sits on a rotating turntable as shown in the figure. At the time shown in the figure, which…

A: We need to say what the direction of friction will be on the coin on turntable.

Q: The ear canal resonates like a tube closed at one end. (See the figure.) If ear canals range in…

A:

Q: A student examining a flashlight observes that it uses a traditional incandescent light bulb. The…

A: We know, P=VII=PV

Q: 8-7 and 8-8 11. If the bowling ball from problem 7 rolls without slipping down a ramp from an…

A: “Since you have posted multiple questions, we will provide the solution only to the specified sub…

Q: 3. If V = 12 V in the circuit below R = 100 N R2= 200 N %3| R3 = 100 N R5= 300 N R4 = 150 N R, = 100…

A: Solution: Given that V = 12 V and the values of other resistors

Q: A conducting bar of length 0.25 m and mass of 0.34 kg is pulled to the right with a Force of 3.0 N.…

A: Write a given values of this question. L=0.25mm=0.34kgF=3.0NB=0.750TR=50Ω

Q: Consider a sound wave moving through the air modeled with the equation s(x, t) = 3.00 nm cos(55.00…

A: Given:      Sx,t=3nmcos55m-1x-14×103s-1tHere wave number k=55 m-1       And…

Q: 5) Let's use this expression to solve a problem. Star X and Star Y are intrinsically identical…

A: Given, star X is located 20 light-years from earth star Y is located 40 light-years  from earth…

Q: I need help with 14.

A: The mean density of moon is,

Q: 7. "The wider the road, the more cars can pass through". Which of the following factors affecting…

A: We need to tell which factor affecting the resistance fits the given analogy.

Q: The magnitude of the magnetic field 47 cm from a long, thin, straight wire is 6.8 µT. What is the…

A:

Q: 17-102. The 25-lb slender rod has a length of 6 ft. Using a collar of negligible mass, its end A is…

A: An object's angular velocity changes per unit of time as a result of rotational acceleration, also…

Q: 7,8,9

A:

Q: 17. An FM radio station broadcasts at 96.7 x 10° Hz. What is the wavelength of the radio wave used…

A: Given data : Frequency, f=96.7×106 Hz Standard data: c=3×108 ms-1

Q: What is the height of mercury level in a barometer which is set up in a sealed cabin on the moon…

A:

Q: 4 6. 7 8. You are on the right side of a sled, pulling it to the right with 150 N of force. A friend…

A: Since there are three forces acting in horizontal direction namely 150N towards right , 200N towards…

Q: A piano tuner hears a beat every 1.90 s when listening to a 260.0 Hz tuning fork and a single piano…

A: Solution: Given: T = time period of beats = 1.90 s f = frequency of tuning fork = 260.0 Hz f1 =…