of the 2.0 kg block. The lower block is pulled to the right with a tension force of 20 N. The coefficient of kinetic friction at both the lower and upper surfaces of the 2.0 kg block is = 0.47.
Q: 2. 57 OC: OD: A: Ts A solid core, pure copper wire of diameter D, resistivity p. and very long…
A:
Q: Two blocks are attached to opposite ends of a massless rope that goes over a massless, frictionless,…
A:
Q: A 155kg roller coaster starts at position A from rest. If the path has a constant friction force f =…
A:
Q: A 17.0-μF capacitor is charged by a 150.0-V power supply, then disconnected from the power and…
A: The objective of the question is to calculate the oscillation frequency of the circuit, the energy…
Q: A ball-launching machine launches a ball of 500 g toward the wall at 10.0 m/s at 30.0° above the…
A: a) 8.8m/sb)4.616 m/sc)3.96 mExplanation:Step 1: Step 2:Step 3:
Q: In the figure, a constant force of magnitude 85.0 N is applied to a 7.0 kg shoe box at angle =…
A:
Q: The diagram shows an ideal (zero internal resistance) DC source connected to three identical…
A:
Q: Q7. For the Biomechanics experiment, use the diagram shown below, if Weight= 1.96 N, rw= 49.5 cm,…
A:
Q: find the voltage and current drop across each resistor physics practice problem
A: The given question is solved in step by step process.Explanation: KIRCHHOFFS VOLTAGE LAW:It states…
Q: As a spaceship is moving toward Earth, Justin and Rich who are on earth measure its length to be…
A: (a) Velocity of spaceship relative to Earth is: 2.88 * 108 m/s.(b) (i) Fin and Lael measures:…
Q: An object has its center of mass 7.25 cm from the pivot point of a servo. Assuming that the servo…
A: The objective of the question is to find the maximum mass of an object that a servo can handle…
Q: Thomson scattering is a process of photon interaction with free electrons, resulting in the…
A:
Q: For an incompressible fluid flow, the flow rate increases in the narrow sections of the flow…
A: We need to select the correct property of flow rate of incompressible flow.
Q: A 113- resistor, a 0.208-uF capacitor, and a 5.79-mH inductor are connected in series to a generator…
A: Write the expression for the inductance.Write the expression for the capacitance.
Q: A projectile is fired horizontally from a gun that is 30.0 m above flat ground, emerging from the…
A:
Q: 2/44 The driver of a car, which is initially at rest at the top A of the grade, releases the brakes…
A:
Q: A slender rod is 90.0 cm long and has mass 0.120 kg. A small 0.0200 kg sphere is welded to one end…
A:
Q: I need help answering this physics question can you help expla
A: (See graph on the Explanation box)Explanation: If A = 4, y = 4/x if x = 1, y = 4/1y = 4 (1,4) if x =…
Q: A 35.0 V battery with negligible internal resistance, a 50.0 resistor, and a 1.25 mH inductor with…
A: Voltage is Resistance is Inductance is Note:Find:(a) Time in which the current through the inductor…
Q: A 72kg hockey player skating due east at 7.8m/s collides head-on with an 83kg player skating due…
A: The objective of this question is to find the velocity of two hockey players after they collide and…
Q: A
A: The speed of an ant as a function of time t isv=bωcos2(8πcos4ωt)+4π2sin24ωtThe path is a…
Q: How many electrons flow in 5 minutes? 9 amps and charge 2700c
A: The objective of the question is to find out the number of electrons that flow in 5 minutes given…
Q: Question 4: A speaker fixed to a moving platform moves toward a wall, emitting a steady sound with a…
A: Question (4):The frequency emitted by the speaker is Beat frequency is Speed of sound is Find:Speed…
Q: An electron is released from rest at the negative plate of a parallel plate capacitor and…
A:
Q: A hand-driven tire pump has a piston with a 2.8 cm diameter and a maximum stroke of 24 cm. Part (a)…
A:
Q: 25.0 gg of copper pellets are removed from a 300∘C∘C oven and immediately dropped into 80.0 mLmL of…
A: The objective of this question is to find the final temperature of the water and the copper pellets…
Q: The work function for a Palladium metal plate on a PCB board of a detector is 5.22 eV. A. Compute…
A:
Q: A toy spring-loaded gun is used to launch a 50 g ball vertically to a height of 3 m. If the spring…
A:
Q: A diver that weights 69 kg jumps off a springboard with a stiffness (k) equal to 8000 N/m. Standing…
A: The objective of this question is to find the maximum height that the diver's center of mass reaches…
Q: The bed of the truck has a static coefficient of friction of 0.5. How quickly can the truck speed up…
A: Given that the truck bed is tilted at a 5-degree angle, the force exerted by the truck bed on the…
Q: What electric field strength will allow the proton in (Figure 1) to pass through this region of…
A:
Q: An iceboat is at rest on a frictionless frozen lake when a sudden wind exerts a constant force of…
A: Given: Force acting on the boat, F = 200 N towards east distance , d = 9.3 m at an angle 26 degree…
Q: Critically ill patients in a cardiovascular intensive care unit must be intensely monitored for any…
A: (a) To determine the stroke volume for the control patient, we need to find the difference in volume…
Q: A worker pushes a wheelbarrow with a horizontal force of 50 N on level ground over a distance of 5.0…
A: Correct option-C The work done on the wheelbarrow by the worker is 35 joules.Explanation:Solution-
Q: Suppose mass 1 is initially at rest and mass 2 moves initially with speed v₁,2. In a totally…
A:
Q: A child is pushing a merry-go-round. The angle through which the merry-go-round has turned varies…
A:
Q: Suppose we have 8.1 moles of an He gas. Its initial temperature is 27 C and pressure is 2*10 N/m².…
A:
Q: A single coil metal detector works by moving a coil over the sand at a beach. Suppose a penny (which…
A: Metal detector works on principal of eletromagnetic field. They work by transmitting electromagnetic…
Q: Three ice skaters meet at the center of a rink and each stands at rest facing thecenter, within…
A: Vx=3.33m/sVy= 3.11 m/s Also please find the detailed solution of the problem attached…
Q: An airplane moving 26 kph westward dropped a missile at an altitude of 11.0 km ASL. What was the…
A:
Q: The figure below shows the path of a light beam through several slabs with different indices of…
A:
Q: Use the following scenario for the next two questions. A U tube is initially filled with mercury (p…
A:
Q: An electron travels with speed of 1.0x107 m/s between the two parallel charged plates shown in the…
A: Speed, v = 1×107 m/sSeparation, d = 1 cm Potential, V = 200 V
Q: In a 220-turn automobile alternator, the magnetic flux in each turn is B = 2.50 × 10-4 cos wt, where…
A:
Q: Solve correctly
A: The objective of the question is to determine the conditions under which the loss of kinetic energy…
Q: A block of mass m = 2.00 kg is attached to a spring of force constant k = 550 N/m as shown in the…
A:
Q: Gayle runs at a speed of 3.65 m/s and dives on a sled, initially at rest on the top of a…
A:
Q: Calculate the electrostatic potential energy of the system of charges. Part b All three charges have…
A: Given: Charges Mass of each particle Separation between any two charges Required: (a) Electrostatic…
Q: ∆E ∆t ≥ ħTime is a parameter, not an observable. ∆t is some timescale over which the expectation…
A: The objective of the question is to predict the width of the energy resonance of a ∆ particle using…
Q: Find the velocity x and the position x as functions of the time t for a particle of mass m, which…
A: The objective of the question is to find the velocity and position of a particle as functions of…
Rotational Equilibrium And Rotational Dynamics
In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics.
Equilibrium of Forces
The tension created on one body during push or pull is known as force.
Step by step
Solved in 3 steps with 3 images
- I need help with this practice problem. The answer key doesn't provide the free body diagram but it says b.) 0.9m from the other end, but I don't understand how to solve it. Two people (a child and parent) are sitting on a teeter-totter of length L = 3 m andmass m = 10 kg. There is a single support in the middle. The adult weighs m1 = 75 kg and thechild weighs m2 = 30 kg. (a) Draw a free body diagram. (b) If the child sits on the end of the teeter-totter, where must the adult sit to balance it?A box of mass M = 50 kg rests on a rough (ji) horizontal surface. When a force F = 300 N is acted on the box as %3D %3D shown in the figure below, the box becomes on the verge of slipping (Y alig de j gainall ). The coefficient of static friction of the rough surface is: F A. 0.92 B. 0.75 40° C. 0.14 D. 0.57 E. 0.34I have a shelf full of textbookd.Each book has a mass of 1.0 kg and mus=0.3. a. How hard do I need to push horizontally to unstick the top book from the rest of the pile? b. How many books can I unstick from the top of the pile if I push with a force of 16N?
- Diagram on right for Problems 12-15: Assume a frictionless pulley. T 125a N FN 351 kg 125 kg 351 kg H= 0.200 351a 45° 351(9.8) 125(9.8) 12. Calculate the force of the friction (FN) on the 351 kg m ass. EFy: N -351 (9.8)cos(45°) = 0 %3D cos(45) = sin(45°) = 0.707 FN = µN 13. Calculate the acceleration a of the 125 kg mass. EFx: 351a = 351(9.8)sin(45) - T -FN 125a = -125(9.8) + T 14. Calculate the tension (T) in the cable. (Hint: substitute a one of the above equations and solve for T) (round answer to three significant digits) a. 171 N b. 980 N c. 1255 N d. 1414 N 15. If the 351 kg mass moves for 3 seconds, what distance will it travel? (Use formula sat) S a. 4.86 m b. 6.82 m c. 9.72 m d. 14.1 mFor Exercises 89–94, the given forces (in units of pounds) act on an object. a. Find the resultant force, R. b. What additional force F is needed for the object to be in static equilibrium? (See Example 11) 89. F, = (3, 11) and F2 = (-8, 6) 90. F, = (-5, 2) and F, = (-7, –3) 91. F, = 5i – j, F, = 4i – 3j, F, = -9i + 2j 92. F, = -12i + 8j, F2 = -9i – 15j, F3 = 1li + 7j 93. F = 13 lb 94. F|= 40 lb F = 8 1b |F,|- 22 Ib 40° 11 lb 35° 47° 68° 1 12° 54° F= 45 lbA spool of mass m = 2 kg rests on an incline as shown in the figure. The inner radius of the spool is r = 200 mm and the outer radius is R = 500 mm. The coefficient of friction between the spool and the incline is u = 0.4, and the angle of incline 0 = 1. Which way does the force of friction act, up or down the incline? 60°. R 2. What is the required horizontal pull T to balance the spool on the incline? T 3. Is the spool about to slip?
- A gymnast rises onto her toes, as shown in the picture on the right. The floor pushes up on the ball of her foot with a force of N=313 N. If 0=56.0°, what are FH the forces in her heel (TH) and ankle joint (T), and what is the angle o? Answers: TH=481 N; T,=761 N; b=20.7° N, 0. 4.25 cm 9.66 cm 5.A ladder of negligible mass composed of two ?-long rails that are hinged at the top, is placed on top of a frictionless floor. A metal bar, connecting both rails halfway up the ladder is placed so that the two rails make an angle of ?= 44.0◦ at the apex. Lastly, a ? = 4.40[kg] block is placed 2/3 of the way up the ladder, as shown.A. What's the magnitude of the tension in the metal bar?B. What's the magnitude of the normal force exerted on the bottom right side of the ladder?C. What's the magnitude of the normal force exerted on the bottom left side of the ladder?D. What's the magnitude of the force the right side of the ladder exerts on its left side?Figure P8.27. Find the tension in each rope when a 700.-N worker stands 1.00 m from one end? e2cm lon ropes, as indicated by the blue vectors in 27. VA uniform plank of length 2.00 m and mass 30.0 ke by three ropes, as indicated by the blue vectors in supported Figure P8.27. Find the tension in each rope when a 700 N person is d = 0.500 m from the left end. er of gravig fo 12, modeling rethooran 8 B of model 10.26 T, T2 0.250 Theatthe le 40.0° lid or boln vibbud ns bano sdi svode m81 o + d » 3. 2.00 m di In bas rirob be ss gairda Figure P8.27 goil sdrto idgiod oh bail rel 2 00 bou d 28. A hungry bear weighing 700. N walks out on a heam in
- The m = 420 gg mass in (Figure) is pushed across the 2.0-m-long cart by a 3.0 N force, starting at the left side. The coefficient of kinetic friction between the mass and the cart is 0.40. The cart's coefficient of rolling friction is 0.020. How far has the cart rolled when the mass falls off the right side? Express your answer with the appropriate units.A uniform plank of length 2.00 m and mass 29.0 kg is supported by three ropes, as indicated by the blue vectors in the figure below. Find the tension in each rope when a 705-N person is d = 0.500 m from the left end. magnitude of T, 493.56 378 Your response differs from the correct answer by more than 10%, Double check your calculations. N 671.95 Your response differs from the correct answer by more than 10%, Double check your calculations. N magnitude of T. magnitude of T, 40.0° -2.00 mDetermine the magnitude of the components of the force and the lever arm d that would put the structure below in equilibrium. F1 = 20 N, F2 = 10 N F3 = 5 N, a = 2.0 m, b = 3.0 m, c = 1.0 m.