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Q: Ch. 28

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Q: Taking the density of air to be 1.29 kg/m3, what is the magnitude of the linear momentum of a cubic ...

A: Mass of 1 m3 of air =1.29kg  a) linear momentum =mv=1.29×57×5/18 m/s =20.42kgm/s

Q: A full-term fetus typically has a mass of 3.50 kg. (a) What pressure does the weight of such a fetus...

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Q: Two cars collide at an intersection and stick together. Car A, with a mass of 1200 kg, was going eas...

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Q: A uniform solid disk with a mass of 40.0 kg and a radius of 0.287 m is free to rotate about a fricti...

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Q: Calculate the centripetal force on the end of a 100 m (radius) wind turbine blade that is rotating a...

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Q: The figure shows the direction of motion of a negative charge moving in a magnetic field.

A: Negetive x direction

Q: In a typical bike, how is the angular velocity of the front sprocket in respect to the rear sprocket...

A: Front sprocket has less radius than rear sprocket

Q: 1. A ball is projected with an initial upward velocity component of 80 ft/s and a horizontal velocit...

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Q: A 77-kg person is standing on a scale in an elevator. What is the reading of the scale in newtons if...

A: reading of a scale depends upon the force exerted by person on the scale (usually its normal force) ...

Q: The period of oscillation of a spring-and-mass system is 0.75 s and the amplitude is 0.09 m. What is...

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Q: The mass of a subway car with all of its passengers is 33,000 kg. It leaves the station with an acce...

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Q: 3. An amusement park ride consists of a large vertical cylinder thatspins about its axis fast enough...

A: (a) The number of minimum revolutions per minute is, n=gμR=9.8 m/s20.257 m=2.4 rev/s Solve the relat...

Q: The equation to find the total resistance [Rt=R1 + R2 + R3...] is used for circuits. O double O sing...

A: Required :: Type of circuit.  

Q: Vork out Problems: Write the relationship between the currents. Loop 3

A: 1(a)The relationship between the currents is given below:- I3=I1+I2 -----(1) 1(b)The Kirchoff's loop...

Q: Match the definition to its term. Write the letter of the term on the line provided next to the defi...

A: 1) Induction- It is defined as the  production of an emf in a conductor as a result of a changing ma...

Q: What is the nuclear equation for Kr (beta decay) 36 www a. Kr Br + je 85 85 1) 85 b. Kr → Rb + -je 3...

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Q: what is the nuclear equation for 146 C( beta decay)

A: When the Carbon-14 atom goes beta minus decay then in that case it produces a nitrogen atom and a be...

Q: DETAILS OBINPHYS8 6.P.021. ASK YOUR TEACH A person stands at a point 292 m in front of the face of a...

A: v=2dtt=2dv

Q: 2.Projectile Motion

A: Given data: The initial speed of stone, vi=18.0 m/s. The height of the cliff, h=50.0 m.  

Q: Consider a transformer, used to recharge rechargeable flashlight batteries, that has 500 turns in it...

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Q: The magnetic field in the figure is changing in strength. As a result, on the shown loop of area 5x1...

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Q: Show all working explaining detailly each step

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Q: In a ballistic pendulum demonstration gone bad, a 0.55 g pellet, fired horizontally with kinetic ene...

A: Mass of the pellet  (m) =0.55gm =0.00055 kgKinetic energy of the pellet = 12mu2=3.35JThe velocity of...

Q: 3. In nuclear fission, a nucleus splits roughly in half.A. What is the potential 4.00 x 10-14 m from...

A: Given values:- Radial distance,(r)=4 x 10-14 m ----(1) Number of proton,(n)=50 protons -----(2) p=1....

Q: Soft magnets are materials, in which the process of ___________________ a. magnetization and demagn...

A: Soft magnetic materials are mainly used in magnetic cores of transformers ,motors ,inductors and gen...

Q: 1 A. This figure shows a body on 20° inclined plane. The weight of the body 80 N. Resolve this force...

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Q: what must be the charge of an isolated spherical conductor 30.0 cm in diameter to produce and electr...

A: Given The diameter of the spherical conductor is d=30 cm=30×10-2 m. The electric field produced in ...

Q: A vibrating object goes through six complete vibrations in 15.0 s. Find the frequency and angular fr...

A: Given data: Number of cycle (n) = 6 Time taken to complete 6 cycle (T) = 15 s Need to determine the ...

Q: What is the force of gravity between two 1420 kg cars separated by a distance of 21 m on an intersta...

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Q: True or false

A: Compressive strain = -∆Lo/L Here,  -∆Lo denotes decrease in length and L is the original length. The...

Q: How much heat must be supplied to a 550.0 g iron pan to raise the temperature of the pan from 18.5 d...

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Q: A two-legged robot is programmed so that upon switching it on, it will do a repetitive pair of steps...

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Q: the half life of Unobtanium-118 is 3 days. how many days pass for 800 grams of this element to be re...

A: Half-life is used to measure the decay rate of the radioactive isotope. One half-life is said to hav...

Q: Determine the percentage by mass of each element in the following compounds. (Round your answers to ...

A: Na2CO3 atomic mass of Na=23 gm atomic mass of carbon C=12 gm  atomic mass of Oxygen O=16 gm total mo...

Q: Find the stop and location of the entrance and exit pupils as well as their respective sizesfor the ...

A: By using lens formula, 1f=1v+1u150=1v+-1601v=50+6050×60v=27.27 mminfront of lens 1 Now, u'=100-27.27...

Q: What is the standard SI unit for electric potential difference? A. Ampere B. Coulomb C. Joules D. Vo...

A: SI is the system of international units. These units are accepted worldwide due to convention. Elect...

Q: Ch. 34

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Q: A kettle operates from a 120V outlet. It has a hating element with a resistance of 8 ohms. Calculate...

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Q: Consider a conducting rod of length 28 cm moving along a path of rails, and a magnetic field pointin...

A: Given- Length of rod d=28 cm=0.28 m  EMF V= 1.25V Magnetic field B=1.3 T

Q: Topic: Doppler Effect Q. How does the hydrogen create gaps in the spectrum?

A: Hydrogen create gaps in the spectrum cause of the reason:

Q: Using law of conservation of energy a) Determine the velocity of the 3 kg mass hits ground b) Find t...

A: a) The 5 kg (say m1) mass’s speed when it hits the ground can be determined by the conservation law ...

Q: A 18 kg canoe moving to the left at 12 m/s makes an elastic head-on collision with a 15 kg raft movi...

A: a) Using conservation of momentum, m1u1+m2u2=m1v1+m2v2v1=u1+m2m1u2-v2=-12 m/s+15 kg18 kg14 m/s--13.2...

Q: IP Consider the four masses shown in the figure(Figure 1). Find the total gravitational potential en...

A: The gravitational potential energy U between two masses m1 and m2r distance apart is:U=-Gm1m2rwhere ...

Q: (Also, draw appropriate vector diagram and label all vectors)

A: Given: Charge, q1 = 20 nC Charge , q2 = -25 nC Charge , q3 = -30 nC Side of square = 20 cm = 0.2 m

Q: Page 3 of 8 4. Lin went ice-skating and tracked his distance using a motion detector. Calculate the ...

A:          Hey there, since you have asked multiple questions we have solved the first one for you. Pl...

Q: 80 volts is applied to a resistor and the current passing through is found to be 200 A. Calculate th...

A: Required :: Resistance.    

Q: Ch. 33

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Q: Capacitance question.

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Q: A slice of copper is 1.0mm thick and carries a current of 10A. A magnetic field of flux density 1.0T...

A: thickness (t) = 1 mm = 0.001 m Current (i) = 10 A Magnetic flux density (B) = 1 Tesla Maximum hall v...

Nature of light

Light is transverse and electromagnetic radiation that exhibits the properties of a wave as well as a particle. For this reason, light is said to have a “dual nature.”