A pendulum of length L with a bob of mass m swings back and forth. At the low point of its motion (point Q), the tension in the string is (3/2)mg. What is the speed of the bob at this point? A. 2gL B. 2gL C. Vgl P R gL VD. 2 VgL Е. 2

Q: 2. A block of mass 0.25 kg is pushed against a spring of spring constant 80 N/m. It can slide…

A: mass of block m = 0.25 kgspring constant k = 80 N/mthe angle of inclination is 30oinitial…

Q: P R2 VE R32 Figure 3. A resistor network with three resistors, R1, R2, and R3. If V = 20.0V, what…

A: R2 and R3  are connected in parallel and R1 is connected in series.  V= 20 V

Q: A tennis ball is struck at the base line of the court, 11.9 in from the net. The ball is given an…

A: To calculate the vertical component of the vertical velocity and range of the ball. Given:Distance…

Q: A playground is on the flat roof of a city school, 5.5 m above the street below (see figure). The…

A: Height of roof (H) = 5.5 m height of vertical wall (h) = 6.8 m Angle of launch (θ) = 53 degree…

Q: Hello can you help me summarize it? thank youu

A: SUMMARY From Newton's 2nd law motion, we find that the acceleration of an object decreases when…

Q: Ans):-> The space environment has a eamplex ynamila smuetie. It ndudes neuhal species pasheles ,…

A: The space environment has a complex dynamic structure. It includes neutral species charged…

Q: (3) A silver dollar is dropped from the top of a cliff that is 1362 feet tall. The height of the…

A:

Q: Consider a parallel plate capacitor which has been charged, and then disconnected from all charge…

A: We are authorized to answer only one question at a time, since you have not mentioned which one you…

Q: 5) A roller coaster at the top of the first hill has 1000J of potential energy and 50J of kinetic…

A: To solve the roller coaster problem one needs to apply the law of conservation of energy, here…

Q: Physics 211 - Module 1 Hands On Activities Packet 2 Activity 1.10- Introduction to Vectors Part 1 1.…

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

Q: A mass spectrometer is being used to separate common oxygen-16 from the much rarer oxygen-18, taken…

A: In this question we are given that a mass spectrometer is being used to separate common oxygen-16…

Q: The position of a particle moving in a straight line is given by the following equation: æ = 2.0 –…

A: Given value---  position x = 2 - 3.6 t + 1.1 t2 . We have to find--- instantaneous velocity at t…

Q: Three resistors are connected as shown below. R =R2= R3 6.0Q. The voltage across the battery is 44…

A: Given data:  R1 = R2 = R3 = 6.0 Ω Battery voltage (V) = 44 V

Q: Problem 4: In a pulley system̟ two blocks are connected by a rope as shown below. The coefficient of…

A:

Q: This is a drawbridge, held in place by a cable. The hinge is frictionless. This problem and the next…

A: Given The drawbridge's weight = W = Mg = 6000 lb length of drawbridge's = l = 52 ft the height of…

Q: What would be the speed of light (in m/s) in a material with a refractive index of 2.26, if the…

A: Given data:  Refractive index of the material (n) = 2.26 Speed of light in vacuum (c) = 3.00×108 m/s…

Q: b) What is the tension in the rod when the ball passes through B? Tension = 5g m %3D

A: this question about find the tension in rod due to centripetal force. atthe point A initial speed is…

Q: loop. The polid black line i the roller coter ack different positions on the track. The roller…

A: Potential energy of an object is by virtue of its height, while kinetic energy of an object is by…

Q: Problem 1: A disk at rest experiences a constant angular acceleration for t = 85 s, at the end of…

A:

Q: 5. A rectangular loop of area A = 0.160 m² is placed in a region where the magnetic field is…

A:

Q: What is the total surface charge density on the interface of the two materials? A B

A: Given data, Voltage=V Two capacitors connected in series.

Q: Two vertical walls are separated by a distance of x. The wall on the left is perfectly smooth, while…

A: Solution: Let l be the length of the board. The left side wall experience no frictional force,…

Q: 15. A Si sample is doped with an unknown acceptor impurity at Na= 10° cm. At a temperature T= 50 K,…

A: Given, Na=1016cm-3 Hole concentration, po=5×1013cm-3 Temperature, T=50 K. The density of electron…

Q: Why does the answer stop

A:

Q: A ski starts from rest and slides down a 28° incline 55 m long. • Part A If the coefficient of…

A: Given data: Angle of inclination, θ=280 Distance covered, d=55 m Coefficient of friction, μ=0.090

Q: Can you please answer this question

A: Given: speed of car (u)= 72 km/h timeto stop the car = 2.0 s.

Q: the answer its wrong can someone else help

A:

Q: #6- A loop of wire with radiusr is suspended in a uniform magnetic field B. If the radius of the…

A: Magnetic field = B Initial radius ri = r Final radius rf = r/2 time taken = t Induced Emf = V

Q: Thor is battling the Frost Giants and he uses his hammer, Mjolnir, to zap them with lightning. Thor…

A: From the first glance we see that for substitution of velocity in the formula the units mentioned is…

Q: You are hiking to the top of a small canyon. When you stop for a rest you decide to shout "hello"…

A: Given Data: Speed of sound in air (v) = 340 m/s.Time for echo (t) = 1.10 s. To Determine: The width…

Q: hello what number is this i dont understand if what number is that so if its number 1 only can you…

A: 2) When the container is dropped, the initial velocity of the container at the top of the building…

Q: Determine the moment about point O. (ANS: 14.5 kN-m, CW) 75° 30° 3 m 45° F = 5 KN

A:

Q: A 22-g bullet traveling 275 m/s penetrates a 1.5 kg block of wood and emerges going 140 m/s. Part A…

A:

Q: 2. A 900-loop circular loop of wire with 0.1 sq. m area is in uniform magnetic field that makes and…

A:

Q: (a) Find structure factor SG(hkI) of the CsCl structure, shown in the figure, and (b) find SG(hkl)…

A: The most important thing when we are calculating the Structure factor is that the knowledge of…

Q: In the circuit shown, R1=R2=R, and ɛ2 =. The rate of 2 heat dissipated by the whole circuit is 110…

A: R1 = R2 = R  E2 = E1/2  Energy dissipation in the circuit is given by  P = 110 J/s

Q: Let r(t) = (3t, 4 cos t, 4 sin t). Compute the curvature K(t), the unit normal N(t), and the…

A:

Q: this is incorrect can u pls do it again in the answer format given

A:

Q: Help Liam Liam drew this graph on the previous screen. T What do you think happened to the green…

A: In the given graph there are two  values of height corresponding to one value of time. So when he…

Q: 1. Determine the level of V, & Ip for the following network. Ans: +8V 1.2 ΚΩ V₂ 4.7 ΚΩ Si L-ov

A:

Q: Three charged, concentric, partial-circle thin rings are placed with the origin of the coordinate…

A: Dear student The potential due to a segment of a ring is given by: V=KQ/R It is irrespective of the…

Q: A 1 B ● 2 3 D E The figure above shows four very thin parallel planes of charge with equal…

A:

Q: Mk=0.7. 10 kg TIR A 10-kg box is at sliding to the right on the floor. A rope is attached to the box…

A: mass of box = m = 10 kg co efficient of friction = 0.7 acceleration = a = 6 m/s2

Q: An electron in a piece of aluminum requires at least 6.73e-19 J of energy to be ejected from the…

A: step-1*Electron in an aluminium requires E=6.73×10-19 J tp eject the electron*If EM radiation of…

Q: If the distance between holes is 50 mm, the distance between the third spot light and the central…

A: Condition for n-thSpot light that means bright fringeYn=nDλdwhere yn=Distance of fringe from the…

Q: A 1 B 3. 2 C 3 D 4 E The figure above shows four very thin parallel planes of charge with equal…

A:

Q: 1. What answer choice shows (4.8 × 10²)÷(1.5 × 10-5) written in scientific notation? A. 3.2 × 107 C.…

A: