write whether attract or repel for every number

Q: Q1) The efficiency of a Carnot engine is 25%. If the temperature of the hot source is 127 °C, what i...

A: Given-:efficiency of carnot engine η=25%                                                     =0.25te...

Q: A projectile is launched with Vo 8.3 m/s and initial angle 1.01 radians above the horizontal. What i...

A: Velocity is a vector quantity that refers to the rate at which an object changes its position. Here,...

Q: The figure shows a lower leg being exercised. It has a 49-N weight attached to the foot and is exten...

A:

Q: A particle leaves the origin with a speed of 3.5 106 m/s at 28 degrees to the positive x axis. It mo...

A: Given, Speed of the particle, v = 3.5×106 ms Electric field is along the positive y-direction, when ...

Q: An 9.13-kg stone at the end of a steel (Young's modulus 2.0 x 1011 N/m2) wire is being whirled in a ...

A: Given that:- Mass of stone=9.13kg

Q: 7. Two objects are connected M by a light string passing over a light, frictionless pulley as shown ...

A: m1 = 5 kg m2 = 3 kg h = 4 m   

Q: A dielectric-filld po allel-plate copacitor Las plate A=10.0cm², plate separation d= 3.00mm and diel...

A: Given, plate area A = 10.0 cm2, plate separation d = 8.00mm dielectric constant k = 4.00 voltage V =...

Q: A 1 m wire carries a current of 20 A. The wire experiences a force of 6.0 N in the presence of a mag...

A:

Q: 63. A 10.0-kg block is released from rest at point in Fig- Mure P8.63. The track is frictionless exc...

A:

Q: QUESTION 5 OK, one more time. This time the magnet has mass 3.85 kg and the force pulling it to the ...

A: Given: The mass of the magnetic is 3.85 kg. The magnetic force on the object is 136.8 N. The coeffic...

Q: A discus thrower starts from rest and begins to rotate with a constant angular acceleration of 2.4 r...

A: Given data:  Initial angular velocity (ωi) = 0 rad/s Angular acceleration (α) = 2.4 rad/s2 Final ang...

Q: Consider the same situation as in the previous problem. This time the magnet has mass 4.48 kg and th...

A:

Q: An astronaut on Mars kicks a soccer ball at an angle 45 ̊of with an initial velocity of 15 m/s. If t...

A:

Q: What type of image is formed by a Convex mirror? A. Virtual and smaller in size than the object. B. ...

A: In convex mirror the image is always created Behind the mirror so the image is virtual. And the imag...

Q: A car travels due east at 25 m/s. It makes a turn due south and continues to travels at 20 m/s. What...

A:

Q: Direction: Use any of these formulas that applied, and draw the diagram if needed. Free Fall Projec...

A:

Q: A temperature-stable resistor is made by connecting a resistor made of silicon in series with one ma...

A:

Q: 30. The electric motor of a model train accelerates the train from rest to 0.620 m/s in 21.0 ms. The...

A:

Q: An office window has dimensions 3.2 m by 2.4 m. As a result of the passage of a storm, the outside a...

A:

Q: A 45 kg boy whose leg bones are 5 cm² in area and 50 cm long falls through a height of 2 m without b...

A:

Q: The figure below shows a cross section of a long thin ribbon of width w = 2.98 cm that is carrying a...

A:

Q: If the semi-major axis, a, is measured in AU and the orbital period, p, is measured in years, then K...

A: Mass of jupiter = 4.5e7 MSun  

Q: Same situation as in the previous two problems this time the magnet s mass is 3.71 kg and the magnet...

A:

Q: The lens-to-retina distance of a woman is 1.94 cm, and the relaxed power of her eye is 54.0 D. (a) W...

A:

Q: This graph shows the potential energy U of a particle moving along the x-axis. Rank the points A, B,...

A:

Q: 61. A child's pogo stick (Fig. P8.61) stores energy in a spring with a force constant of 2.50 X B) 1...

A: The child is moving upward from here is moving in X direction and its position in the child is momen...

Q: Capacitors with capacitances of 14.5 nF, 10.8 nF and 79.7 nF are connected in a circuit as shown bel...

A: The equivalent capacitance of capacitors connected in series is given by 1Ceq = 1C1+1C2+1C3+...., wh...

Q: A projectile is launched with Vg 8.3 m/s and initial angle = 1.01 radians above the horizontal. w is...

A:

Q: An object is submerged in water, the top level is 1.5 m and bottom is 6 m. What is the center level?

A:

Q: Interference bands are produced when monochromatic light is incident on two slits which are 0.10 mm ...

A:

Q: The color of the flames changes when the air hole is opened or closed. What are the colors in the co...

A: The flame color depends on the gases present in that chamber. The flame is blue, luminous and clean ...

Q: Please help me solve the following.  A 5.6 uc particle with a mass of .00092 kg is going 775 m/s whe...

A:

Q: An electron in a vacuum is first accelerated by a voltage of 11000 V and then enters a region in whi...

A: force on a charge in a magnetic field is  F = q(V→×B→)  

Q: A magnet of mass 5.01 kg is suspended from the ceiling by a cord as shown. A large magnet is somewhe...

A: Given: The mass of the magnet is 5.01 kg. The magnetic force is 187.4 N.

Q: A uniform 3.9T magnetic field points north. If an electron moves vertically downward (to- ward the g...

A: Given : Magnetic field , B= 3.9 T  Speed, v= 2.8 × 107 m/s  Charge on proton, q = 1.6 × 10-19 

Q: A magnetic field is generated by a current-carrying wire. Which one of the following statements conc...

A:

Q: A particle of mass 4.00 kg, moving on a horizontal table top, has an acceleration vector (in m/s2) g...

A:

Q: Show that, for the closest packing of atoms, the densities of the FCC, BCC, SC and diamond monatonie...

A:

Q: Three electrolytic capacitors are in a series connection. 4µF + + C2 3µF C3 6µF Solve for: Cт, Qт, U...

A:

Q: Given data : Pressure=30 N/mm2 Force%3D20 N Find area

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

Q: A crate with a mass of 15kg is being dragged across the groud at a constant velocity of 2.0 m/s by a...

A:

Q: A fixed 11.1-cm-diameter wire coil is perpendicular to a magnetic field 0.73 T pointing up. In 0.14 ...

A:

Q: A glass sheet 1.10 μm thick is suspended in air. In reflected light, there are gaps in the visible s...

A:

Q: 2. A 10 kW drilling machine is used to drill a bore in a small aluininium block of mass 8-0 kg. How ...

A:

Q: (a) How much gravitational potential energy (relative to the ground on which it is built) is stored ...

A:

Q: Problem 1: A centrifuge has a diameter of 18cm. It is able to spin at 10,000 rpm. A What is the cent...

A: magnitude of centripetal force = mv2r=mω2r centripetal acceleration = ω2r   

Q: A box of mass m1=5.60 kg rests on a second box of mass m2=13.0 kg. Both are on the floor of an eleva...

A:

Q: A simple AC generator consists of 20 coils of wire with an area of 1000 cm² and placed in a region w...

A:

Q: A 3.0-cm-tall object is placed 12 cm in front of a mirror. A 9.0-cm-tall upright image is formed. Wh...

A:

Q: Suppose a car travels 108 km at a speed of 20.0 m/s, and uses 1.80 gallons of gasoline. Only 30% of ...

A: The work done by a force on moving a body by a distance is given by W = F.s, where F = the force act...

Relativistic Energy and Momentum

According to classical physics, time flow is the same for every observer. But according to einstein's theory, time flow is different for different observers. The idea that time flow is not the same for all may sound strange because we may not experience this effect in everyday life. This effect is only observed when an object moves with some velocity comparable to the velocity of light. This velocity is termed relativistic velocity.