A certain radioactive isotope has a half-life of 55 days. About how long would you have to wait before 1/10001/1000 of an initial sample of this isotope remained? 20 days 40 days 50 days 100 days 1000 days

Q: 3. When the machine in the previous question is turned off, the motor provides some resistance which…

A: Solution:Given:1 min = 60 sω1 = initial rotational speed of grindstone = 90 rot/minω2 = final…

Q: A 25-cm-long massless spring is suspended from a pivot. A ball attached to the spring's lower end is…

A: L=25 cm=0.25 m

Q: in (Figure 1), A and B are long wires perpendicular to the figure. Wire A carries a 16 A current. A…

A:

Q: F 2. What can you say on the two forces acting on an object that is initially at rest for it to…

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Q: A small insect is embedded in a piece of amber (Index of refraction of 1.6) with a radius of…

A: Distance of insect from the surface, Index of refraction of amber, Index of refraction of air,…

Q: Please refer to part (c) of Figure 1 included with this quiz. Here, the triangle is isosceles, and…

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Q: Four resistors are connected to a battery as shown in the figure. The current through the battery is…

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Q: A gun fires a bullet with an initial velocity of 481.7 m/s at a small target 55.82 m away. a) At…

A: Solution:Given:v = initial velocity of bullet = 481.7 m/ss = distance between gun and target = 55.82…

Q: We wish to use the 15-cm-diameter objective from an amateur telescope to form an image on a CCD of a…

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Q: At a processing plant, olive oil of density 875 kg/m³ flows in a horizontal section of hose that…

A: Given Data:Density of olive oil is Diameter of the hose 1 is Diameter of the hose 2 is The area of…

Q: In a process of an ideal gas, the pressure is halved while the volume is kept constant. During this…

A: An ideal gas Pressure is halved, Volume is kept constant, Heat flow,

Q: Q-1 A point light source has an intensity of 2000 candela in all directions and is mounted 4 meters…

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Q: SOLVE THE FOLLOWING PROBLEM AND EXPLAIN YOUR ANSWER FOR BETTER UNDERSTANDING. 1. Which has the most…

A: 1) Mass is one of the fundamental quantities in physics and the most basic property of matter. We…

Q: The electric field strength between the plates of a simple air capacitor is equal to the voltage…

A: Voltage across capacitor is Electric field is Note:Find:Distance between the plates.

Q: A pure carbon archaeological artefact has an age of 20000 years and an activity of 6 counts/min.…

A: The objective of the question is to find the activity of a pure carbon archaeological artefact at…

Q: Consider an organ pipe 1.72 m long that has one open and closed end. What is the funda- mental pitch…

A: Length of organ pipe                               Speed of sound

Q: A copper bar of thermal conductivity 401 W/(m·K) has one end at 114°C and the other end at 24.0°C.…

A:

Q: A rectangular loop carrying current I is placed in the x-y Plane as shown. 9. Y 4 O S I Find Ĥ at…

A: Here question a and question b are completely independent. As per the QnA guideline, we will solve…

Q: A long, straight wire lios along the z-axis and carries current I=60.0 A in the+z-direction. A small…

A: Current, I = 60.0 AMass of small particle = Charge = Distance

Q: A light ray enters a rectangular block of plastic at an angle 0₁ = 47.2° and emerges at an angle 0₂…

A: Angle Angle

Q: the carrier distribution in the conduction band is:nc(E) = gc(E) . f(E)   a) For a non-degenerate…

A: The objective of the question is to demonstrate that the carrier distribution in the conduction band…

Q: . A ski jumper starts from rest 50.0 m above the ground on a frictionless track and flies off the…

A: Initial height, Initial velocity, Final height,

Q: Chekhov (mc = 60 kg), Scotty (ms = 75 kg), and Uhura (mu = 55 kg) are floating motionless in space…

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Q: Two muscles in the back of the leg pull upward on the Achilles tendon, as shown in the figure below.…

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Q: A coil of inductance 2.0 mH and resistance 4.0ohmsis connected in series with a 0.3µF capacitor.…

A: Resonance in LCR circuit is the condition when the inductive reactance XL is equal to the capacitive…

Q: In an interference experiment, red light with a wavelength of 6.0 x 10 –7 m passes through a double…

A: Given Data:Wavelength Distance between screens Wavelength of blue color  To Determine:(a). The…

Q: What do you mean by gauss law

A: Gauss's Law is a fundamental principle in physics, specifically in the field of electromagnetism,…

Q: A star of mass M = 1.82 x 100kg is the origin of a coordinate system. A comet of mass m = 6.95 x…

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Q: ana has set up a target for her toy spring gun. The gun requires 5.90 g pellets as ammunition that…

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Q: Consider medical x rays that are taken with electromagnetic waves having a wavelength around 0.19 nm…

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Q: A solid cylinder of radius 0.35 m is released from rest from a height of 1.8 m and rolls down the…

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Q: The total annual energy consumption i the United States is about 1 x 1020 J. ▼ Part A How much mass…

A: According to this mass energy equivalence, mass and energy are inter-convertible.. So whenever you…

Q: Let's say the Earth moves around the Sun in a circular orbit with a constant speed (neither is…

A: The correct answer is B. The work done on the Earth is zero, since the force of gravity is always…

Q: Sterling Archer, despite failing repeatedly at pole-vaulting, is determined to master the skill. He…

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Q: The model airplane in Figure 5.6 is flying at a speed of 14.0 m/s on a horizontal circle of radius…

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Q: Suppose we have a string 1.5m long that is fixed at both ends. We adjust the string's ten- sion so…

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Q: option c is not correct

A: The center of mass is the unique point at any given time where the weighted relative position of the…

Q: The free-fall acceleration on the moon is 1.62 m/s². What is the length of a pendulum whose period…

A: The time period of a pendulum is given by, whereL = the length of the pendulum andg = acceleration…

Q: Anna (mass ma = 65kg) is skating through the airport at a speed of V_A = 8 m/s. She sees an…

A: let's consider the forces involved and whether they do work on the system.Conservation of…

Q: Calculate the final temperature of 1 L (1000 g) of water, initially at 10°C, and mixed with 1000g of…

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Q: 9.2 cm   29.8 cm   13.7 cm   22.9 cm

A:

Q: 14. Find the impedance magnitude and phase angle: 226 юкл mu AS E ст 50lvo что ре f = 100Hz INI ег…

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Q: A horizontal plank 4.00 m long and having mass 20.0 kg rests on two supports, one at the left end…

A: Given the mass of the object = m = 20.0 kgthe length of the plank = L = 4.00m one support at the…

Q: ube is 39.0 on each edge. Four straight segments ab, bc, cd, In Figure magnetic field of magnitude B…

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Q: What is the binding energy per nucleon for the following isotopes?

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Q: A jet assisted projectile has a displacement, s, that is given by the following function.

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Q: Calculate the magnitude of the gravitational force between two 10-kg lead spheres separated by a…

A: Mass of objects are Distance between objects is Note:Find:The magnitude of gravitational force…

Q: Lucy is on a trampoline and completes one up-and-down movement in 1.5 x 10^-1 seconds. Can you…

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Q: A student walking to class on a cold day (To = -1 °C) find a silver ring with an inner diameter of D…

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Q: 12. A trail maintenance team is using explosives to remove a 895 kg boulder from a trail. When the…

A: We will use conservation of momentum to solve this problem.

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.