A 4.3 x 1014 Bq source of 60Co is used for cancer treatment. Each disintegrating nucleus emits two gamma rays, one of energy 1.17 MeV and one of 1.33 MeV. What is the mass of 60Co present in the source? The half-life of 60Co is 5.3 years. Select one: a. 1.04 kg b. 0.010 kg c. 10 kg d. 0.060 kg

Q: A 500 g block w/ an a horizontal tabletop a. How far will it b. What is the c tabletop?

A: mass = m = 500 g = 0.5 kg initial speed = Vi= 90 cm/s = 0.9 m/s frictional force = f =0.8 N

Q: There are two forces on the 6.2 kg crate in the overhead view of the figure below, but only one is…

A: Given- Force (F1) = 11.7 N Acceleration (a) = 10.3 m/s2 θ = 39° Mass of crate (m) = 6.2 Kg

Q: In God of War, Kratos pushes a canoe with his son in it across the sand towards water.  Kratos…

A: Given:Force applied, F = 751 N ( in positive direction)frition force, f = 395 N ( in opposite…

Q: Q7. Inertia is O An example of Newton's 1st law of motion. O Defined as the tendency for an object…

A:

Q: A ship of mass 4.5 x 10° kg starts from rest under the force a constant propeller with a thrust of…

A: Express the condition for the ship attain terminal velocity. Fthrust=Fr Here, Fthrust is the thrust…

Q: What is the force by tension between the 3 kg bucket and the 7 kg bucket on the right? A 56.5 N

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: A 0.623 kg. basketball is dropped from the rooftop of a building. If it took the ball 3.5 seconds to…

A:

Q: The direction of the acceleration, when Fj and F2 are applied to a 5 kg crate; F¡ is 6N due north…

A:

Q: A 40.82kg hunter ropes a 186.05 kg sleeping polar bear and pulls the bear towards him until the…

A: Center of mass is a point where the whole mass of the body is assume to be concentrated. For…

Q: For this question, an 85,000kg missile on the moon fires its engines while tilted at 34 degrees from…

A: Given, an 85,000kg missile on the moon fires its engines while tilted at 34 degrees from the…

Q: A particle moves in a plane according to the following relationship: Find the force acting on the…

A:

Q: A 36 kg block is moving across a horizontal surtace at 9.5 ms What is the magnitude of the force…

A:

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

A:

Q: 6. Calculate the magnitude of the resultant of three concurrent forces: The first force is 200 N…

A:

Q: 42. John is moving a 14 kg box in a Phsyics lab on an approximately frictionless surface. If the box…

A:

Q: A horizontal carousel is rotating around its axis with constant angular velocity w. On the carousel…

A: Step 1: here we have solved for question a Step 2: here we have solved for question b  Step 3: nil…

Q: 1. Calculate the x-component of force 100 Ib. Assume positive to the right. O 40V5 Ib O 50 Ib None…

A:

Q: 7. Block Aslides to the left with an initial speed of 2 m/s with respect to the ground on a…

A: Given data: The initial speed of block is u=2 m/s. The speed of transmission belt is v=3 m/s. The…

Q: Determine the acceleration of the cable drawn into the motor to make the load B attain a speed of 8…

A: Given, Speed at load, vB=8m/s Time, t=3s Length of string 1, SB+2SB-SC=l13SB-2SC=l1 Time derivative…

Q: corre hacia acả v constante rueda hacia ac An acrobat who is on the lateral surface of a cylinder,…

A: Hey dear have a look

Q: 1. A child stands on a bathroom scale while riding in an elevator. The child's weight when the…

A: Note: As per the guidelines, we can only answer first question of multiple question. Sorry for the…

Q: 1. Find all the forces on Qs. Q2 0.7 m 0.7 m 2 m 0.3 m 1.1 m Qs Q1 = Q3 = Qs = 4 x 10-6 C Q2 = Q4 =…

A: This problem is from Electrostatics. Let's solve this problem by using Coulomb's law. Please have a…

Q: Luke and his friends will play pinata game. He attached the 5 kg pinata to a string, and he is…

A:

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 physics student with mass 51kg slides in the snow (see figure). Find the velocity for each points…

A: Given: ha=100mhb=60 mhc=30mhd=60mhe=0m

Q: At the instant shown the 100-lb block A is moving down the plane at 4 ft/s while being attached to…

A: Given:

Q: g. If your answer to f was yes, describe the equal and opposite force by answering these questions:…

A:

Q: 10. How much horizontal force is needed to produce an acceleration of 8 m/sec² on a 75 kg box? A.…

A:

Q: a particle undergoes the force F at t=0 in r0 and with the speed V0. find r and V as a function of…

A: From the force that the particle undergoes, we can find its acceleration. As we know acceleration is…

Q: 2. The only force acting on a 10-kg object has components Fx = 60 N and Fy = 80 N. Find the…

A:

Q: 3 ст 3 cm 91 q2 q: = Q= 4.5 nC, q, = -4.5 nc

A: Given:

Q: 1A Vab

A:

Q: Suppose a 4.25 slug gymnast is climbing a rope.  a. What is the tension, in the rope, in pounds if…

A: The objective of this question is to calculate the tension in the rope when a gymnast is climbing…

Q: The graph shows the motion of an RC helicopter. What will be the average speed from point ‘A’ to…

A: average speed = (distance) / (time) For distance see y - axis  for time see x- axis In  0 to 5…

Q: A micro-transporter moves from one side of an evacuated chamber to another. It is powered by…

A: Given: The small positive charge is 9x10-10 C. The friction force is 6x10-3 N. The acceleration of…

Q: frictionless pulley. The pulley is attached to a chain from the ceiling. 1. What is the tension in…

A:

Q: Luke and his friends will play pinata game. He attached the 5 kg pinata to a string, and he is…

A:

Q: A student gets on an elevator and stands on a scale. Before pressing a button, the scale reads 680.…

A: Given: Scale reads 680 N Elevator accelerates scale reads 800 N