The center of mass of a system of particles has a constant velocity if: the velocity of the center of mass is initially zero the external forces acting on particles of the system sum to zero the force acts at the center of mass the velocity of the center of mass is initially zero

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: The above figure shows a conducting loop of radius 12 cm in a 0.15 T magnetic field. The coil is…

A:

Q: A +12 nC charge is located at the origin. Part A What is the electric field at the position (x1, Yı)…

A:

Q: 2. One kilogram of water at temperature 20°C is mixed with 0.500 kg of water at 80°C in a…

A: GIVEN:  1 kg (m1 ) of water at temperature T1 = 20oC is mixed with (m2) 0.5 kg of water, at T2=80oC…

Q: Two horses are pulling a barge with a mass 4000 kg along a canal, as shown in Figure 4.8 in the…

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: If a 1.06 kg mass on a spring has a period of oscillation of 4.0 seconds, find the spring constant.…

A: Write the given values with the suitable variables. m=1.06 kgT=4 s Here, m and T are the mass and…

Q: The concepts in this problem are similar to those in Multiple-Concept Example 4, except that the…

A:

Q: Two straight long wires carry currents I and 31 in the same direction. Where is the position where…

A: Magnetic field is a vector quantity.if two equal and opposite magnetic field act at a point net…

Q: Two objects having different masses are subjected to Identical forces act for the same length of…

A: It is given that two objects having same masses are subjected to identical forces for same length of…

Q: A long straight wire carrying a current of 0.450 A has a loop with a radius of 5 cm. The current is…

A:

Q: 9&10 please! Thank you!

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 01a. A 72 N force is applied to a 11 kg box on rough level ground. The coefficient of friction…

A: A free-body diagram for a body under the influence of external forces is the situation where this…

Q: Three charged particles are located at the corners of an equilateral triangle as shown in the figure…

A: let q1 = 2.8 x 10-6 Cq2 = 7 x 10-6 Cq3 = 4 x 10-6  C

Q: In the following diagram, the current passing through 20 Ohm is 1.5 A. 19. What is the current…

A:

Q: Mickey, a daredevil mouse of mass 0.0189 kg, is attempting to become the world's first "mouse…

A: Given: In this question, the given details are, Mickey, a daredevil mouse of mass 0.0189 kg, is…

Q: 1. Can objects in a system have momentum while the momentum of the system is zero? Explain.

A: Given :- can objects in a system have momentum while the momentum of the system is zero .

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: The total time a projectile spends in the air along its trajectory A. air resistance В. trajectory…

A: Answer is D

Q: A solenoid with radius a produces a magnetic field with strength B pointing into the page. A square…

A:

Q: A 6230-kg satellite is in a circular earth orbit that has a radius of 3.81 x 107 m. A net external…

A:

Q: The block in the drawing has dimensions LO×2L0×3L0.where Lo =0.3 m. The block has a thermal…

A: Give Thermal conductivity = 100j/s-mC  Delta T = 21- 12 ° C = 9 ° c

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: = 201². The fan blade in a jet engine rotates from rest with the angular acceleration a = 1 9. find…

A: GIVEN         Angular acceleration = α = 20t2

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: Light bulb 1 operates with a filament temperature of 2500 K, whereas light bulb 2 has a filament…

A: T1=2500k. T2=1900k.

Q: When two parallel plates connected to a 40-V battery, the electric field between the plates is 2200…

A: Given: In this question, the given values are, Voltage is, V=40Volt, And the electric field is,…

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: According to Dynamical Systems Theory, the preferred, comfortable behavioral state of movement is…

A: This theory is applicable to the study of human movements. The strength of the theory is in the…

Q: I need help with 14.

A: The mean density of moon is,

Q: 1. A capacitor is connected to a 120-V, 60-Hz supply parallel with a coil with L = 6.63 mH and R =…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: (COLLAB) A new design of Saturn 11 rocket with mass 1.24 x10° kg has a propulsion engine that can…

A: Mass of rocket = 1.24×106kg Fuel Mass carry by rocket = 41.36×106kg burning of fuel = 3.95×105 kg/s

Q: 7. Solve for unknown parameters 30

A: solution is given as

Q: Consider the 68.0 kg mountain climber in the figure. 31 Fup 15 (a) Find the tension in the rope (in…

A:

Q: A hollow sphere is taken as bob of a simple pendulum. This hollow sphere is filled with fine sand.…

A: The expression for the time period of a simple pendulum is written as, Here, l and g represent the…

Q: wave paths to a distant screen are shown, leaving the slits at angle ₁. (The screen is so far away…

A: The wavelength of light is 624 nm.  (1) Every semi circle wavelet represents a wave front. Wave 1…

Q: A flux of 25 X10^5 Maxwell links with a 1500 turn coil when a current of 3 A passes through the…

A: Given,ϕ=25×105 WbN= 1500I= 3AA) Inductance, L=NϕlL= 1500×25×1053= 1250×106 HL= 1250×106H

Q: in an experiment on rotation. If the rod is nailed at a distance of (1/3)L from one of its ends and…

A: moment of inertia I = mr2

Q: In a video clip, a man is bound by chains and is hanging from the top and rotating on the chain. In…

A: Scenario: A man is hanging from the top and bounded by a chain such that man is rotating on the…

Q: The period of oscillation of a block of unknown mass hung from a spring is 1.8 s. A. What would be…

A: Given data: Here are the given data, Time Period of oscillation of a block=1.8s Mass=4 times of the…

Q: A convex lens has a focal length of 17 cm. A candle with a height of 4 cm is 10 cm

A: Focal length of convex lens is f=17 cm Height of object is ho=4 cm Object distance is u=10 cm…

Q: At what speed, as a fraction of c, does

A:

Q: A coaxial cable filled with teflon carries a current of 0.75 Amps out of the page along the central…

A: The integral form of the original circuital law is a line integral of the magnetic field around some…

Q: The length of the column of mercury in a thermometer is 3.3 cm when the thermometer is immersed in…

A: The given length of the mercury for ice water is L0 = 3.3 cm and the temperature of the ice water is…