If the vector A = I – 2j and the vector B = 4i – 5j , what angle does A + B form with the x-axis?

Q: A vessel of volume 80 x 10m° contains an ideal gas ai 300 K and 200 kPa. The gas is allowed to leak ...

A: Givenvolume of vessel ,V=8.0×10-3 m3Temperature ,T=300 KPresure of gas before leakage  ,P1=200 kPa =...

Q: Three charged particles of q, = 30.0 nC, q, = -30.0 nc, and 93 = 15.0 nC are placed on the y-axis, a...

A:

Q: Helmholtz coils are frequently used in experiments because they create a uniform magnetic field abou...

A:

Q: A proton is released from rest in a uniform electric field. The proton is accelerated and directed e...

A: Acceleration of proton = 3.50×108 ms2, towards east let the electric field = E   

Q: A rectangular block is moving along a frictionless path when it encounters the circular loop, as sho...

A: A. Force on mass m due to which it moves in a circular motion is central force. That is the force wh...

Q: Using your basic understanding of magnetism and its laws, explain that, if a charged particle is not...

A: Let the magnetic field strength = B let the charge = q Let the velocity of charge = v   

Q: Two coplanar and concentric circular loops of wire carry currents of I, = 6.10 A and I, = 2.10 A in ...

A:

Q: A body moving with uniform acceleration has a velocity of 11.5 cm/s when its X coordinate is 5.0 cm....

A: u = 11.5 cm/s  Xi = 5 cm  Xf = - 5 cm  Time is t = 6 s .

Q: ma tug-or-war game on one campus, 15 students pull on a rope at both ends in an effort to displace t...

A:

Q: 1. Two large balls roll over a smooth surface and collide. They are made of a super hard material so...

A:

Q: The half life of an unknown substance is 1 week. How much of its nuclei were disintegrated after 10 ...

A:

Q: Problem 10:   Unpolarized light of intensity I0 = 850 W/m2 is incident upon two polarizers. The firs...

A:

Q: What is the minimum speed a 805 kg roller coaster needs to have at the top of a 6 m radius vertical ...

A:

Q: An AM radio station broadcasts isotropically (equally in all directions) with an average power of 3....

A:

Q: A 1682-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the o...

A:

Q: A person atop a 30 m cliff throws a ball at 4 m/s at an angle of 37 degrees above the horizontal. Ne...

A:

Q: 5. I| A 50 g horizontal metal bar, 12 cm long, is free to slide up and down between two tall, vertic...

A:

Q: Present the detailed derivation of the Snell's Law from the Fermat's Principle.

A:

Q: If a parallel-plate capacitor is inserted with a glycerine dielectric, what will be its capacitance ...

A:

Q: 5. Find the relative permittivity ɛr of the dielectric material present in a parallel-plate capacito...

A: Q.5GivenA = 0.12 m2d = 80μmV = 12 VU = 1μJ

Q: A bicycle with a mass of 14 kg traveling at a velocity of 3 m/s east has how much kinetic energy?

A: Given data:  Mass (m) = 14 kg Velocity (v) = 3 m/s Required: Kinetic energy (KE) 

Q: According to the nebular theory, which planet is most likely to be gaseous rather than rocky?

A: Rocky  planet are mercury Venus and earth and mars are wrong.   A gas giant is a large planet compos...

Q: Which of following statement is incorrect? A. Fresnel diffraction is observed in a near-distance fie...

A:

Q: The fastest slapshot recorded was by Al lafrate in 1993 at 169.3 km/h. Assume this is the average sp...

A:

Q: Is it possible to put a satellite in a “geostationary” orbit around Venus? You can assume that Venus...

A: Given that:Time period of venus, T=5832 hrMass of venus, M=4.867×1023 kg Radius of its Hill sphere, ...

Q: A Plane flies parallel to the ground at a height of 3 km at 340 m/s over a mysterious island when an...

A:

Q: Consider an electromagnetic wave where the electric field of an electromagnetic wave is oscillating ...

A:

Q: A 0.85 kg ball experiences a centripetal acceleration of 6.5 m/s2 as it goes around a 1.2 m radius c...

A: Given data:  Mass (m) = 0.85 kg Centripetal acceleration (ac) = 6.5 m/s2 Radius (r) = 1.2 m Required...

Q: 4 THE RINGS Op SATURN ARE ABOUT 7300ko FROM THE CENTER Of Tb PLANET, CALCOLOTE PERIOO OF ORBIT,

A:

Q: A particle moves in the horizontal xy plane. A variable force acts on the particle with expression (...

A:

Q: Vector A has a magnitude of 4.0 at 530 counterclockwise from + x-axis and Vector B has a magnitude o...

A: Given value--- A = 4 unit  , 53 degree . B = 5 unit , 130 degree. We have to find--- A ● B

Q: When a figure skater goes into a spin, she will begin with her arms extended, and then draws her arm...

A:

Q: A force of 500N is used to stretch a spring with a 0.5kg mass attached to it by 0.35m. a) What is th...

A: According to hooks law restoring force F=  -kx Where k is spring constant  X is change in distance f...

Q: The lower surface of a slab of stone of face-area 3600 cm and thickness 10 cm is exposed to steam at...

A:

Q: cargo is being pulled by two sailboats, both having equal magnitude of forces. The first sailboat is...

A: Resultant of two forces can be determined by parallelogram law of vector.

Q: Use the relationship between distance (d), time (t) and speed (v), d=vt to find the calculation us...

A: Given value--- Distance = 22236 miles. speed = 1.86 × 105 mi/s. We have to find--- time ?  

Q: (a) In electron-volts, how much work does an ideal battery with a 28.0 V emf do on an electron that ...

A: Given emf of battery = 28.0 V battery is ideal battery I.e internal resistance is zero We have to ca...

Q: What is the force (magnitude and direction) on the wire in the figure below if it carries a current ...

A:

Q: t one location on the Earth, the rms value of the magnetic field caused by solar radiation is 1.85 µ...

A: According to question we need to compare average magnitude of pointing vector. 

Q: Solve the horizontal velocity of the tennis ball at point A so that it just clears the net at B; and...

A:

Q: During a slap shot, a hockey player accelerates the puck from a velocity of 7 m/s to 40 m/s in the s...

A: Given: Initial velocity, u=7 m/s Final velocity, v=40 m/s  Time interval, t=3.33×10-2 s   To determi...

Q: n= (360/ϴ) - 1 if 360/ϴ is even n= 360/ϴ if it comes odd and when the object is placed asymmetricall...

A:

Q: a) Calculate the work done in lifting a 500 N barbell 2.2 m above the floor. b). What is the potenti...

A:

Q: pounces straight up from a diving board, avoiding the diving board on the way down, and falls Teet f...

A:

Q: Suppose a student is looking closely at an object inside a container containing a liquid of refracti...

A:

Q: A man 6 ft tall tossed a ball from the elevator that is traveling 6 ft/s upward. The ball strikes th...

A:

Q: 7.3-magnitude earthquake hit eastern Japan late Wednesday night,killing at least four people and inj...

A: Given Magnitude of Richter scale = 7.3  

Q: How fast should a 100 kg football player run to have the same kinetic energy as a 156 kg player goin...

A: Given data:  Mass of first player (m1) = 100 kg Mass of second player (m2) = 156 kg Speed of second ...

Q: The boy at point A tries to toss a ball (initial velocity = 20m/s) over the top of a house. Calculat...

A:

Q: The lower surface of a slab of stone of face-area 3600 cm and thickness 10 cm is exposed to steam at...

A: Given  Area, A = 3600 cm2 = 0.36 m2  Thickness, d = 10 cm  Temperature, T1 = 100° C   Ice at T2= 0° ...

Scalars and Vectors

Scalars and Vectors are the classification of physical quantities that are used to denote various terms in physics.