Substance X has a half-life of 10 years, if you start with 1000 grams, how much will be left after 100 years? (Give your answer in units of grams)

Q: A satellite is held in orbit that is 310 km above the surface of the Earth by a gravitational force ...

A: Given: The height of the satellite from the earth's surface is 310 km. The gravitational force is 14...

Q: Five, 100 Ohm resistors are all in parallel to each other. What is the equivalent resistance of the ...

A: Given data:  Five resistors are connected in parallel R = 100 ohm Required: The equivalent resistanc...

Q: The moon has a mass of 7.34 x 1022 kg and a radius of 1.74x106 m. If you have a mass of 66 kg, how s...

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Q: A kicked football leaves the ground at an angle of 37° with the horizontal with a velocity of 20 m/s...

A: Given that : Initial velocity (u) = 20 m/sAngle (θ) = 37°Gravitationa acceleration (g) = 9.8 m/s2

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A: Given, initial speed of the projectile, vo = 196 ms angle above the horizontal, θ= 30° height of he ...

Q: A worker is required to identify and inspect an object 1 m away. It is illuminated by a 75-W light s...

A: Given:

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Q: Question 5 If the eletnent shown is equilibrium F- 573 N, F2 - 419 N, a 31°,B-54", a-0.15 m, b-0.34 ...

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Q: Find the current in a long straight wire that would produce a magnetic field twice the strength of t...

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Q: B. Write the balanced nuclear equation for the following reactions: 201 1. Alpha emission of Bi 83 2...

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Q: For the following circuit R1 = 55 2, R2 = 120 Q, R3 = 160 consumed by R1· [6] R2

A: GivenR1=55 ΩR2=120 ΩR3=160 ΩVsource =22 V

Q: What is the energy change in eV corresponding to the transition from n=3 to n=4 of the hydrogen atom...

A: The transition is happening from n1 = 3 to n2 = 4 We have to apply the formula of transition for hyd...

Q: 62.0 kg skier starts from rest at the top of a ski slope 55.0 m high. (a) If the frictional forces d...

A: mass of skier (m) = 62 kg height (h) = 55 m work done by frictional forces = -9800 J   

Q: A glass tube of radius 0.4 mm is dipped vertically in water. Find upto what height the water will ri...

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Q: A baseball is traveling with a velocity of 12 m/s at an angle of 50o above horizontal. What is the v...

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Q: a speed of 9.8 ms. Find the potential energy after half A stone of mass 0.4 kg is thrown vertically ...

A: The equation of motion we use to solve this is s = ut + 12at2, where u = the initial velocity t = ti...

Q: A microscope has focal length of 3 cm for both objective and eyepiece lens.  The standard microscope...

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Q: The muzzle velocity of a projectile is 1,200 ft/s and the distance of the target is ‘17 ’ miles. Wha...

A: Given data: The velocity of projectile is u=1200 ft/s. The distance of the target is s=17 miles.

Q: A sinusoidal voltage of frequency 60 Hz and peak value 150 V is applied to a series L-R circuit, whe...

A: A sinusoidal voltage source (dependent or independent) produces a voltage that varies as a sine wave...

Q: Two objects A and B flies towards each other. When the distance between them is and acceleration are...

A: GivenDistance between Object A and B=1.2 km=1200 mvA=40 m/svB=15 m/saA=-0.5 m/s2aB=1.36 m/s2

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Q: A 1,195-kg car traveling initially with a speed of 25.0 m/s in an easterly direction crashes into th...

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Q: When resistors 1 and 2 are connected in series, the equivalent resistance is 22.9 Q. When they are c...

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Q: (1a). Black body has emissivity value of 1, but in reality, the emissivity of real objects is less t...

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Q: A circular coil of radius 10 cm is placed in a uniform magnetic field of 3.0 x 10-$T with its plane ...

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Q: The vehicle is designed to combine the feel of a motorcycle with the comfort and safety of an automo...

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Q: A projectile is fired with an initial speed of 196 m/s at an angle of 30 degrees above the horizonta...

A: We have a projectile that is fired of a cliff of height y=96 m with an initial velocity u=196 m/s ma...

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Q: A negative particle of mass m =2.38×10-26 charge, is launched in a uniform electric field with initi...

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Q: the following temperatures, find the equivalent temperature on the indicated scale. (a)    −221°C o...

A: the equivalent temperature on the indicated scale.

Q: You are asked to consult for the city's research hospital, where a group of doctors is investigating...

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Q: 1- A 4.00-cm tall light bulb is placed a distance of 45.7 cm from a double convex lens having a foca...

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Q: An 80-kg block rests on a horizontal plane. Find the magnitude of the force P required to give the b...

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Q: In performing his favorite workout routine, Jason throws a ball with an initial velocity of 10.8 m/s...

A: The ball is thrown with an initial velocity u=10.8 m/s in the upward direction and the acceleration ...

Q: A sample of liquid acetone weighing 0.700 g was burned in a bomb calorimeter for which the heat capa...

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Q: An ideal spring of negligible mass with force constant of 400 N/m is placed on a frictionless horizo...

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Q: .) Given two capacitors 3.5F and 4.2F, and a total electric potential of 200v, find all the followin...

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Q: A force of 140N is applied to an object area 6 m? . Calculate the pressure ?

A: Given data :    Force  =  F   Area   =  A        To find :       Pressure 

Q: 13. A mass of 1 kg is acted upon by a single foree F = (4i + 4ĵ)N. Under this force it is displaced ...

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Q: 17. Two blocks A and B are stacked on top of the other and placed above a table. There is no frictio...

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Q: What is the correct Kirchhoff's Loop Equation for Loop #1? R1 IA Loop #1 R2 R3 IB Ic Loop #2 R4 R5 e...

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Q: Find the current in a long straight wire that would produce a magnetic field twice the strength of t...

A:

Q: The force required to compress a non-standard spring as a function of displacement is given by the e...

A:

Q: A particle moves along the x axis. It is initially at the position 0.290 m, moving with velocity 0.2...

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for yo...

Q: You get a wide-angle camera lens.  The lens will have a(n) _____ focal length. a)nfinite b)medium c...

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Q: In an interference experiment the ratio of a1 amplitudes of coherent waves is a2 3 The ratio of maxi...

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Q: Parts a and b of the drawing show the same uniform and constant (in time) magnetic field B directed ...

A: givenLW=5.87εa=0.169 V

Q: A particle moves along the x axis. It is initially at the position 0.290 m, moving with velocity 0.2...

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Q: How do common types of batteries generate electrical energy? Explain your answer.

A: Battery is a device which converts chemical energy to electrical energy. A chemical reaction takes p...

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A:

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.