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Q: Constants I Periodic Table A 900 kg car is at the top of a 32 m -long, 2.5 incline. Its parking brak...

A: a)According to law of conservation of momentum, total momentum before collision is equal to total mo...

Q: An object undergoes simple harmonic motion with a maximum velocity of vmax = 9.24 m/s. If it takes 0...

A: Let vmax be the maximum velocity of a simple harmonic motion, A be the amplitude of the motion, T be...

Q: When unpolarised light is passed through a polariser, and then through an analyser with its polarisi...

A:  The Malu’s law relates the incident intensity and the transmitted intensity. 

Q: A U-shaped tube is partially filled with equal volumes of water and mercury. If each liquid fills a ...

A: Mercury is denser than water. Hence, it will settle to the bottom of the tube. The height y up to wh...

Q: a block of mass m is initially traveling upward along a ramp at speed v. The coefficient of kinetic ...

A: a)The weight of block is acting vertically downwards. It is resolved into horizontal and vertical co...

Q: A loaded spring gun is compressed 5 cm, and fired vertically upward. The spring constant is 1200 N/m...

A: A spring constant of a spring,The spring gun compressed,The mass of the bullet,The acceleration due ...

Q: Which of the following was part of the criteria for a book being accepted in the New Testament canon...

A: The part of the criteria for a book accepted in the New Testament canon is ‘the book was in harmony ...

Q: Inelastic Collision Calculate the combined velocity of the two gliders after collision collision fro...

A: The final combined velocity of gliders after collision is,

Q: For the following situations, determine whether the energy of the given system is the same at the in...

A: (a)System : Wall - conserved. By third Newton’s third law. Action and reaction are equal.System ; Gi...

Q: A circuit in a TV has an overall resistance of 28 Ω. The current in the circuit is 0.1 A. Find the v...

A: Voltage is,

Q: Everyone's favorite flying sport disk can be approximated as the combination of a thin outer hoop an...

A:

Q: A 12.0-g bullet is fired horizontally into a 118-g wooden block that is initially at rest on a frict...

A: Since the collision is inelastic, only momentum of the system is conserved. Write the conservation e...

Q: A 12m long post is bolted to the wall on its left end. It's right end is held horizontal by a wire t...

A: GivenLength of post L = 12 mMass of post m = 13 kgAngle Ѳ =35

Q: A 1.80 kg toy race car is slowing down while travelling around a circular horizontal track. If the t...

A: Given values:Mass of the oy car, m = 1.80 kgRadius of the track, R = Diameter / 2 = 1.51/2 =0.755 mC...

Q: FULL SCREEN PRINTER VERSION BACK NEXT Chapter 28, Problem 042 The bent wire shown in the figure lies...

A:

Q: The inital angular velocity and the angular acceleration of four rotating objects at the same instan...

A: Given information:Initial angular velocity of object 1 (ωi-1) = +22 rad/sAngular acceleration of obj...

Q: A vehicle engine slows down from 3300 rpm to 1100rpm in 2.5s. What is the angular acceleration? a. ...

A: Given

Q: G. U Hn E. F) + A nail wapped W/wre and unnected to a batteny as below Iron nail + Bulley Whatis the...

A: Diagram,

Q: A large hollow sphere is composed of a uniformaly positive charge gel. The hollow cavity has a radiu...

A: The charge density on the sphere is:

Q: 11.1.2. A 0.400-A current is charging a capacitor that has circular plates 20.0 cm in radius. If the...

A: The electric flux is given by

Q: For the circuit shown in the figure (Figure 1), find the current through and the potential differenc...

A: Resistances, 4 ohms, 48 ohms and 16 ohms are connected in series, therefore equivalent resistance:

Q: One of my homework problems asks this:   A non-conducting sphere of radius R = 9.0 cm carries a char...

A: Given values:Radius of non - conducting sphere, R = 9 cm.Charge on sphere, Q = 5.0 m CHere we would ...

Q: During launches, rockets often discard unneeded parts. A certain rocket starts from rest on the laun...

A:

Q: A 54-kg ice skater pushes off the wall of the rink, giving herself an initial speed of 3.2m/s. She t...

A: Write the expression for horizontal force using Newton’s second law

Q: 2 Consider a particle of mass m moving in the region x > 0 under the influence of a potential U (x) ...

A: Given,

Q: **8. A molecule of mass 3 x 10-26 kg is moving toward a wall at a speed of 3 x 105 m/s. It bounces b...

A: The mass of molecule,The initial velocity,The final velocity,

Q: A horizontal spring-mass system has low friction, spring stiffness 220 N/m, and mass 0.4 kg. The sys...

A:

Q: how could i calculate a change in temprature of a rain drop only given the velocity at which it drop...

A: This problem is basically based on the conservation of energy.Given the velocity, v at which it drop...

Q: A 0.590 kg wooden block is spun around on a wooden table. The wooden block is being spun around on a...

A: Given information:

Q: Physics Question

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

Q: Calculate the centripetal acceleration of the Earth in its orbit around the Sun. Assume that the Ear...

A: Given that radius of the Earth orbit aR=1.50×1011m

Q: 3. Smartphone chargers are usually labeled with their current output in A (amps). Suppose your charg...

A: Let us take a standard Q as battery capacity in mAh, I1 be the current rating of charger, and V be t...

Q: A 0.250 kg0.250 kg toy car moving with a speed of 0.860 m/s0.860 m/s collides with a wall. The figur...

A: The force versus time graph is shown below.

Q: Some bacteria are propelled by motors that spin hair-like flagella. A typical bacterial motor turnin...

A: Consider the angular speed of the bacterial motor be ω0, the angular speed of the rim of the bacteri...

Q: A cart with mass 390 g moving on a frictionless linear air track at an initial speed of 1.2 m/s unde...

A: Given,

Q: A large hollow sphere is composed of a uniformaly positive charge gel. The hollow cavity has a radiu...

A: The electric field inside a hollow sphere is zero. Since the electric field intensity is zero inside...

Q: Which of the following about a wave pulse traveling down a long spring is true? i.  The size of the ...

A: The size of wave pulse decreases means that the amplitude of wave gets decreasing. It is called the ...

Q: sSWB-Rocket-jetison 4 of 13 Review | Constants During launches, rockets often discard unneeded parts...

A: Given:Acceleration of the rocket = 3.15 m/s2initial speed of the rocket = 0

Q: (Figure 2)The drawbridge then starts to rise. The dancer continues to stand on one leg. The drawbrid...

A: Drawing the free body diagram:

Q: In the figure provided, a 142 g ball on a 73.1 cm rope is swung in a vertical circle about a point 2...

A: The expression for the required distance is,

Q: See attached picture for diagram    You and your roommate need to move a refrigerator to a new locat...

A:

Q: You push a 33-kg table across a 6.2-m-wide room. In the process, 1.5 kJ of mechanical energy gets co...

A: the expression for mechanical energy is 

Q: A 1,200-kg car travels at a constant speed of 35.0 m/s on a flat surface around a circular path with...

A: For a car travelling in a circular path, the centripetal force is balanced by the frictional force.

Q: A 250-kg flatcar 23 m long is moving with a speed of 7.0 m/s along horizontal frictionless rails. A ...

A: Given information:Mass of the flat car, M = 250 kg Mass of the worker, m = 95 kgThe velocity of the ...

Q: A flashlight bulb is rated 2.6 V and 0.30 A.  What is the bulb's resistance?  Round your answer to t...

A: Resistance is,

Q: A simple harmonic oscillator has k = 12.0 N/m and m = 0.14.  To calculate the period, can the subjec...

A: Given:Spring constant, k = 12 N/mMass of the object, m = 0.14 kg

Q: A rocket is launched straight up with constant acceleration. Four seconds after liftoff, a bolt fall...

A: Use the kinematic equation to solve for the velocity of the rocket four seconds after the lift off,

Q: Given that the two displacements are: X=(8i+3j-2k)m, Y=(4i-4j+8k)m. I. Find the magnitude 2X-4Y II. ...

A: I. The magnitude 2X-4Y is 42.19 m.

Q: A pogo stick has a spring with a force constant of 2.50 × 104 N/m , which can be compressed 11.2 cm....

A: Initially, the energy stored in the compressed spring is:

Q: (a) Find the equivalent capacitance between points a and b for the group of capacitors connected as ...

A:

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.