The dose rate at 2 feet from a 137Cs source is 10 mrem/hour. What is the dose rate in mrem/hr at this point if a 2 inch (5 cm) lead shield is erected between the source and detector? The HVL of lead is 0.56cm for 137Cs.

Q: A 75.0 Kg person stands on a scale that reads 500. Newtons. The person is pulling on a rope that is…

A: The tension in the rope T=mg-N  =75.0 kg×9.81 ms2-500 N  =236 N

Q: a. Robin Hood (mass = 96.25 kg) is escaping by cutting the rope and flying upward as the chandelier…

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Q: The 500-kg crate is supported by the three cables. Find the tension in cable AD.

A: The weight of the load will be supported by the three ropes which will have tension in them pointing…

Q: F e. A block with a mass of 25.5 kg is moving at constant velocity because a force of 138 N is…

A:

Q: The force F= 600 lb is shown in the figure. What is the X-component of F in Newton? b. 1. a. What is…

A: Given, F = 600 lb. F is making an angle of 30 degrees with X axis F is making an angle of 30 degrees…

Q: The cable supporting a 30 kg box has a maximum strength of 294 N. What maximum downward acceleration…

A: Given: mass of box, m=30 kg Maximum strength, F=294 N

Q: The figure below shows a bird feeder that weighs 152.3 N. The feeder is supported by a vertical…

A: This is clear from the given conditions that the bird feeder is static so let us assume T1   Bottom…

Q: 1) Two athletes pull on a rope in a tug-of-war. Each pulls with a 430 N force. What is the resultant…

A: Given When to athletes pull a rope in tug of war with a force of 450 N and what is the resultant…

Q: 6. Consider the system shown in the figure. Block A weighs 45.0 N and block B weighs 25.ON. Once…

A: Given data: Weight of block A ( WA )= 45 N Weight of block B ( WB )  = 25 N Weight of cat Wcat = 45…

Q: M 30° M

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Q: We rest our calculator on a physics book; the surfaces have coefficients ?s = 0.45 and ?k = 0.25.…

A:

Q: mil n m2

A: m1 = 5 kg m2 = 7 kg

Q: Q4: Calculate the magnitudes of unknown forces for particle equilibrium. F2 4 kN 10 kN 25 24 30° 30°…

A:

Q: 1. Three blocks (m;=1.0 kg, m2=2.0 kg, m3=3.0 kg) are on a surface with a friction coefficient of…

A: Given quantities: masses of three blocks : m1 = 1.0 kg , m2 = 2.0 kg , m3 = 3.0 kg  coefficient of…

Q: A person of weight 490 N stands on a scale in an elevator. What will the scale be reading? when the…

A:

Q: A driver tells passengers to buckle their seatbelts, invoking the law of inertia. In a few…

A: Newtons first law of motion. A body will   not change its motion unless any unbalanced force act on…

Q: wo blocks joined by a string have masses of 6 and 9 kg. They rest on a frictionless horizontal…

A: Step 1:Given the mass of the two blocks are m1=6 kg and m2=9 kg.A force of F=30 N is applied on a 9…

Q: A 0.15 kg marble is on a track. It is being held at the top of a hill that is 10 m high. If it is…

A: According to the conservation of energy, energy of an isolated system is conserved. i.e. energy can…

Q: A 1.9-kg block slides down a frictionless ramp. The top of the ramp is h1= 1.9 m above the ground;…

A:

Q: In the diagram below, the mass of the object is 50.0 kg. What is the weight value of the object?

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Q: A soccer ball (mass = 0.40 kg) is kicked from the ground and given an initial velocity of 21 m/s at…

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Q: You are standing in a moving bus, facing forward, and you suddenly fall forward. This happens…

A: Inertia is defined as a property of matter by which it remains at the state of rest or in uniform…

Q: An elevator cab is moving downward by a cable. The total mass of the cab is 1950 kg. Find the…

A: Since the cab move with constant speed so the tension in the string is  T=mg  m=1950kg g=9.8 m/s2

Q: 5- If F = 40 N and M 15 kg, what is the tension in the string connecting M and 2M? Assume that all…

A: For mass 2M, From Newton's second law, we have          -F + T = 2Ma Where T is tension and a is…

Q: 13. 54-kg box is sitting on the floor of a level railroad car which is moving forward with a speed…

A: mass of box = 54 kg speed = 25 m/sa = 5.6 m/s2

Q: A boy has a weight of 80 N on the moon, where g = 1.6 m/s2. The mass of the boy is O a. 50 kg O b.…

A: Given : W = 80 N g = 1.6 m/s2

Q: A cart ( m=2012 g) is moving horizontally due to a horizontal tension force applied by a string. If…

A: Given data: Mass of cart, m=2012 g=2.012 kg Acceleration, a=2.4 m/s2

Q: M2 FIGURE 6 Two masses mi = 3 kg and m2 = 10 kg are connected by a light string which passes over a…

A: Given Data Two masses are given as m1=3 kg and m2=10 kg Let T is the tension in the string and a is…

Q: A child of mass 43 kg stands on a scale inside an elevator. Select one or more: A. The scale…

A: Consider the acceleration of the elevator be a, and the speed of the elevator be v. Apply Newton’s…

Q: What is the net force of a cart in a tiled floor if its kinetic friction is 20 N and the frictional…

A: Net force is equal to the difference between applid force minus force due to friction.

Q: M2 = 4 kg a m2 u = 0.1 %3D 20° 0 M1 = 10 kg What is the acceleration? What is the tension on the…

A:

Q: 15. A skier is at the top of a frictionless hill. The hill makes an angle of 30.0° relative to the…

A:

Q: man of weight 80 kg is standing in an elevator which is moving with a constant velocity of 6 m/s in…

A: Mass of the man   m = 80 kg Acceleration due to gravity    g = 10 m/s2 Velocity of the lift  v =…

Q: Consider the pulley below where m2> mı. Show that the acceleration and tension in the string are m2…

A:

Q: 20 m An incline of height 20 m and 0 = 12° has an object of mass m=1.5 kg sliding down on it. The…

A: Solution: B. The equation of motion can be written as the following.  Using Newton's second law of…

Q: (a) Replace the force system shown by an equivalent force-couple system with the force acting at…

A:

Q: The figure below shows a loop of wire of mass m = 0.0289 kg, width L = 0.0514 m, and resistance R =…

A: Given, Mass, m=0.0289kg Width, L=0.0514m Resistance, R=0.315Ω Magnetic field, B=1.89T Given long as…

Q: Starting from a standstill, Abi (mass = 55.00 kg) performs a vertical jump. a.) How much does Abi…

A: Mass of Abi is m = 55.00 kg

Q: A friction experiment is performed on a planet that has the same mass as Earth but half the radius.…

A: Write the given values with the suitable variables. Mp=MrP=r2F=15 Nm=1 kgμ=0.3 Here, Mp, M, rP, r,…

Q: n empty elevator car of a building has a mass of 1 metric ton. It has a counterweight with a mass of…

A: