The figure shows a container of mass m₁ = 4.0 kg connected to a block of mass m₂ by a cord looped around a frictionless pulley. The cord and pulley have negligible mass. When the container is released from rest, it accelerates at 2.2 m/s² across the horizontal frictionless surface. What are (a) the tension in the cord and (b) mass m₂? (a) Number (b) Number Units Units 77₁ M₂
Q: A long straight rod consists of a 25-cm piece of copper attached to a 30-cm piece of aluminum. If…
A: Write the given values with the suitable variables. lc=25 cmlal=30 cmT1=21 °CT2=90 °C Here, lc, lal,…
Q: How can we apply the principles of Galilei in our everyday life?
A: Galileo Galilei was a natural philosopher, astronomer, and mathematician. He made many contributions…
Q: Two forces are applied as shown to a hook. Determine the magnitude and direction of their resultant…
A: magnitude of first force (Q) = 900 N direction of first force (Q) = 30o north of east magnitude of…
Q: The kinetic energy K of an object of mass m moving with speed v is given by the formula K = mv2. The…
A: Given Mass of an object = m Speed of the object = v Kinetic energy of the object = (1/2)mv2 The SI…
Q: A football is kicked at 25.0 m/s at an angle of 29.0° above the horizontal. Assume it starts 1.00 m…
A:
Q: What change in entropy occurs when a 0.10 kg steam at 120 degC is transformed into ice at -28 deg C?…
A:
Q: 11. A ball is held 50 cm in front of a plane mirror. The distance between the ball and its image is:…
A: Given data: A ball is held 50 cm in front of a plane mirror. The distance of the ball d∘=50 cm The…
Q: Three point charges lie along a straight line as shown in the figure below, where q₁ = 5.46 μC, 92 =…
A:
Q: . Determine the velocity of the electron in a positronium atom which is shown in the figure (figure…
A: Given: The radius of the circular path is 2x5.3x10 cm.
Q: Losing Speed: On a bumper car ride, a rider is moving at 5.0 miles/hour. Her car collides with…
A: Given data: Initial velocity (u) = 5.0 miles/hour Final velocity (v) = 0 Distance traveled (d) =…
Q: When it is autumn in Asia, what season is it in Antarctica
A: Antarctica has mainly two seasons: 1) Summer ( October to Feburary) 2) winter ( March to Last…
Q: Water weighs roughly 9.85 N per liter. Calculate the kilos of its mass. Use 3 decimal places.
A: Given data- One liter water weight = 9.85N Mass in kilograms = ?
Q: An automobile traveling 67.0 km/h has tires of 71.0 cm diameter. (a) What is the angular speed of…
A:
Q: Study situation(s) result(s) in an acceleration? Explain. Situation A Situation B Ffrict 5 N = 3 N -…
A:
Q: What is the magnification of the images formed by plane mirrors and why?
A: Asked: The magnification of the images formed by the plane mirrors
Q: The loaded cab of an elevator has a mass of 2.20 × 103 kg and moves 247. m up the shaft in 16.0 s at…
A:
Q: A 200-volt electromotive force is applied to an RC-series circuit in which the resistance is 1000…
A:
Q: A 3 kg block sits on a level table and a string runs over the edge of the table on a pulley to a…
A: Free body diagram gives whole idea of the forces acting. Force brings about motion and changes in…
Q: A car travels 25 mi/hr for 15 minutes. It then goes 40 mi/hr for the next 10 minutes. Finally it…
A: Given data: Speed (v1) = 25 mi/hr for t1 = 15 min Speed (v2) = 40 mi/hr for t2 = 10 min Speed (v3 )…
Q: A car starts from rest with an acceleration of 5.4 m/s² which decreases linearly with time to zero…
A:
Q: The particle will cross the origin when t = i S.
A:
Q: A copper wire carries a current of 135 A to an electroplating tank. Find the magnetic field caused…
A: 1) current (I) = 135 A length (dl) = 1.3 cm = 0.013 m distance of point (d) = 1.5 mθ = 40o
Q: A 25-kg object is being lifted by two people puting on the ends of a 1:31-mm diameter nylon cord…
A:
Q: A solid cylindrical Aluminum rod has a diameter of 0.5 inch and weighs 23 lbs. The density of…
A: Given : solid cylindrical Aluminum rod has a diameter of 0.5 inch d= 0.5 inch weight = 23 lbs The…
Q: energy is moving along the string? Draw your observations of this pulse as it travels to the fixed…
A: Ans-1 The energy transported by a wave is directly proportional to the square of the amplitude. So…
Q: A 663 kg hammer of a pile driver is lifted 3.3 meters above a piling head. If the hammer is…
A:
Q: Which characteristic is a disadvantage of hydroelectric plants? O Low net energy O Large land…
A: hydroelectric power plant are located on large dams made on rivers. they make the use of water by…
Q: 1. The fastest measured pitched baseballleft the pitcher’s hand at a speed of 45.0 m/s. If the…
A:
Q: One gallon of water, which is in a bottle at room temperature of 25 °C, is poured over 1.7 kilograms…
A:
Q: A brown box slides horizontally at a constant velocity on a frictionless surface. Which free body…
A: Given Brown box slide horizontally with constant velocity. We have to choose which figure show…
Q: Introduction 1.5 - 0 0-15 Dielectric Multiple Capacitors Capacitance 1.00x1013 F 10-13. """ Stored…
A: The problem is based on series and parallel combination of capacitance. To solve the given problem…
Q: A log is floating on swiftly moving water. A stone is dropped from rest from a 64.6-m-high bridge…
A: Given Data Height of the bridge h = 64.6 m speed of log v = 3.12 m/s Let t be the time taken by the…
Q: J.R.R. Tolkien wrote in his epic novel The Lord of the Rings that the One Ring “...did not seem…
A:
Q: A 50,000 kg locomotive is traveling at 40.0 m/s (on a horizontal track) when its engine and brakes…
A:
Q: A small aircraft is headed due south with a speed of 59.0 m/s with re that it moves in a direction…
A: GivenSpeed of aircraft headed due south with respect to wind, vaw=59 m/sPlane moves in direction, θ=…
Q: What does a physicist mean by "external" force? O An external force is one that can affect the…
A: External Force The first option is wrong, when an external force acts on the body then its…
Q: 2. A mass of 2 kg is suspended from a spring with a known spring constant of 10 N/m and allowed to…
A:
Q: Four forces are exerted on the object shown in the figure. (Forces are measured in newtons,…
A:
Q: 5. Why is energy required to move a positively charged particle away from a strong electric field? A…
A:
Q: 100 lb A 80 lb 80 lb Figure 1 100 lb 100 lb 200 lb
A: Given,
Q: Weight is mass times the acceleration of gravity. If an individual weighs 134 pounds on Earth, how…
A: Given: The weight of the object on the Earth is 134 pounds. The acceleration due to gravity on…
Q: A girl is standing at the edge of a cliff 100. m above the ground. She reaches out over the edge of…
A:
Q: A car slows down with an acceleration that has a magnitude of 3.3 m/s². While doing so, it travels…
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…
Q: A proton is placed in a uniform electric field and then released. Then an electron is placed at…
A: charge on proton = 1.6×10-19 C charge on electron = -1.6×10-19 C mass of proton = 1.67×10-27 kg mass…
Q: The current supplied by a battery in a portable device is typically about 0.158 A. Find the number…
A: Current (I) = 0.158 A time (t) = 2 hours
Q: A 35.1-m length of copper wire at 20.0°C has a radius of 0.23 mm. If a potential difference of 7.0 V…
A:
Q: 2. A hand is pushing a 16N "PHYSICS" book against a wall; the coefficient of static friction between…
A:
Q: An archer aims an arrow exactly horizontal over a flat field and shoots it. At the same instant, the…
A: Given that archer aims an arrow exactly horizontal over a flat field and shoots it. This produces…
Q: A 1 B ● 2 3 D E The figure above shows four very thin parallel planes of charge with equal…
A:
Q: The instantaneous speed of a particle moving along one straight line isv(t) = ate−5t, where the…
A: Given Instantaneous speed along a straight line v(t) = ate−5t we have to calculate What is its…
Step by step
Solved in 2 steps with 2 images
- You are pushing a metal crate against a metal floor. The two surfaces have a static coefficient of friction of 0.62 and a kinetic coefficient of friction of 0.50. The floor is horizontal, and the crate has a mass of 25.0 kg. What is the minimum force you need to apply to get the crate moving from rest? Give your answer in units of N, to three significant figures.The figure shows a container of mass m₁ = 4.8 kg connected to a block of mass m₂ by a cord looped around a frictionless pulley. The cord and pulley have negligible mass. When the container is released from rest, it accelerates at 2.5 m/s² across the horizontal frictionless surface. What are (a) the tension in the cord and (b) mass m₂? m₁ mąA 28.0-kg block is connected to an empty 3.00-kg bucket by a cord running over a frictionless pulley. The coefficient of static friction between the table and the block is 0.41 and the coefficient of kinetic friction between the table and the block is 0.30. Sand is gradually added to the bucket until the system just begins to move. Ignore mass of cord. Calculate the acceleration of the system. Express your answer to two significant figures and include the appropriate units.
- The figure shows a container of mass m1 = 2.3 kg connected toa block of mass m2 by a cord looped around a frictionless pulley. The cord and pulley have negligible mass. When the container is released from rest, it accelerates at 0.64 m/s? across the horizontal frictionless surface. What are (a) the tension in the cord and (b) mass m2? (a) Number Units (b) Number i UnitsA box is given a push so that it slides across the floor. How far will it go, given that the coefficient of kinetic friction is 0.18 and the push imparts an initial speed of 3.9 m/sm/s ? Express your answer to two significant figures and include the appropriate units.A 28.0-kg block is connected to an empty 2.26-kg bucket by a cord running over a frictionless pulley. The coefficient of static friction between the table and the block is 0.48 and the coefficient of kinetic friction between the table and the block is 0.25. Sand is gradually added to the bucket until the system just begins to move. Ignore the mass of the cord. Calculate the mass of sand added to the bucket. Express your answer to two significant figures and include the appropriate units. m= _______ units Calculate the acceleration of the system. Express your answer to two significant figures and include the appropriate units. a= _________ units
- A cord passing over a pulley connects two masses, as shown, where m, 3.60 kg and m,6.40 kg. The system accelerates with a magnitude of 1.10 m/s. The coefficient of kinetic friction between the masses and the incline is the same for both masses. Assume the pulley is frictionless, and the cord is massless. (Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) 35.0 35.0 (a) what is the coefficient of kinetic friction? (No Response (b) what is the tension (in N) in the cord? (No Response NThe figure shows a container of mass m, = 3.2 kg connected to a block of mass m, by a cord looped around a frictionless pulley. The cord and pulley have negligible mass. When the container is released from rest, it accelerates at 2.2 m/s? across the horizontal frictionless surface. What are (a) the tension in the cord and (b) mass m2? (a) Number i Units (b) Number i UnitsThe figure shows a container of mass m1 = 4.9 kg connected to a block of mass m2 by a cord looped around a frictionless pulley. The cord and pulley have negligible mass. When the container is released from rest, it accelerates at 2.2 m/s? across the horizontal frictionless surface. What are (a) the tension in the cord and (b) mass m2? (al Number Units The absolute tolerance is ± 0.1. (b) Number Units This answer has no units * (degrees) Save for Later Attempts: 0 of 3 used Submit Answer m kg m/s m/s^2 N/m kg-m/s or N-s N/m^2 or Pa kg/m^3 m/s^3 times
- A chandelier hangs h = 0.62 m down from two chains of equal length. The chains are separated from one another by a length L = 0.45 m at the ceiling. The chandelier has a mass of m = 21 kg.Randomized Variablesh = 0.62 mL = 0.45 mm = 21 kgWhat is the angle, θ in degrees, between one of the chains and the vertical where it contacts the chandelier? Write an expression for FT,y, the magnitude of the y-component of the tension in one chain, in terms of the given information and variables available in the palette. FT,y = Using your previous results, find the tension, FT in Newtons, in one chain. FT =A 5.00 kg box sits at rest at the bottom of a ramp that is 8.00 m long and is inclined at 30 degrees above the horizontal. The coefficent of kinetic friction between the box and the surface is 0.40, and coefficent of static friction is 0.43. What constant force F, applied parallel to the surface of the ramp, is required to push the box to the top of the ramp in a time of 6.00 seconds?A 28.0-kg block is connected to an empty 2.60-kg bucket by a cord running over a frictionless pulley. The coefficient of static friction between the table and the block is 0.47 and the coefficient of kinetic friction between the table and the block is 0.26. Sand is gradually added to the bucket until the system just begins to move. Ignore mass of cord. Calculate the mass of sand added to the bucket and acceleration of the system.