A student walks 2 km in 30 minutes. What is the student's average speed in km/hr?

Q: Two cars A and B are heading east from the same starting point. Car A moves at 80 km/h at constant s...

A: Speed of car A is VA = 80 km/h  Speed of car B is VB = 110 km/h   

Q: A motorboat is racing towards north at 25km/h and the water current in that region is 10km/h in the ...

A:

Q: A stone is dropped from the top. It is seen to hit the ground below after 3.55 s. How high is the cl...

A:

Q: Write your complete solution on the solution box and encircle or box the final answer. Don’t forget ...

A:

Q: A dive-bomber has a velocity or 280 m/s at ail angle θ below the horizontal. When the altitude of th...

A: Given, speed of the dive-bomber, u = 280 ms the altitude of the aircraft, x = 2.15 km displacement o...

Q: Question #2: A Tesla Model 3 is driving down Bank Street in Ottawa, Ontario. It is driving along wit...

A:

Q: A uniform beam of length 20 m and mass 100 kg is supported by pylons on either end. A 200-kg box is ...

A:

Q: The board rests on the surface of two drums. At the instant shown, it has an acceleration of 0.48 m/...

A:

Q: Find the speed at which the mass of an electron is double of its rest mass.

A:

Q: A transverse wave in a string has the form y= 5.5 cos pi (0.08 x +9.0t), where x is in centimeters a...

A:

Q: A small particle of mass m moves in such a way that 1 -m "o°r° where w is a constant 2 2 2 the poten...

A:

Q: Where t = 2 sec 1.) X=5t^4 Find the displacement, velocity and acceleration. Please answer all and s...

A:

Q: A rectangular surface of length 3.25 cm and width 5.25 cm lies on the X-y plane at z = 0. What is th...

A:

Q: wo students went to the pool to relax on a summer day. Both students have inflatable floats, and are...

A: In all collision momentum remains conserved  Momentum before collision = momentum after collision 

Q: A horizontal platform in the shape of a circular disk rotates on a frictionless bearing about a vert...

A: GivenInitial radius ,ri=1.43 mI=263 kg*m2m=61.6 kginitial angular speed ,ωi=2.02  rad/sFinal radius ...

Q: The figure shows three 0.0163 kg particles that have been glued to a rod of length L=5.62 cm and neg...

A:

Q: Which of the following statements is true? O The magnitude of the electrostatic force exerted by one...

A:

Q: The uniform solid block in the figure has mass 39.0 kg and edge lengths a = 0.763 m, b = 1.58 m, and...

A:

Q: boy on top of a hill thrown a stone with an initial velocity of 100ft/sec at an inclination of 60° w...

A: Motion of projectile can be divided into x component and y component.  

Q: Find the speed at which the mass of an electron is double of its rest mass.

A: Given information :- mass of electron m = 2.m0 where m is moving mass of the electron and m0 is the ...

Q: Find the value of the line integral of the magnetic field around a closed curve in the presence of s...

A: Given Six electric currents are given as I1=4.17 A, I2=6.21 A, I3=1.67 A, I4=3.73 A, I5=4.51 A and I...

Q: A beam of 450 nm light is incident on a metal having work function 2:0 eV and placed in a magnetic f...

A: Given Data, Wavelength of incident light(λ)=450 nm Work function of the metal(ϕ)=2.0 eV Radius of ci...

Q: The mass of planet Jupiter is 1.9 x 10 kg and that of sun 1.99 × 103° kg. The mean distance of the s...

A:

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

A:

Q: 1. A magnetic field of 3.2 T is perpendicular to a square coil of 12 turns. The length of each side ...

A:

Q: Point charges qı and q2 of +6nC located at the origin and -8nC located at (30 cm, 0) Calculate the e...

A:

Q: In the figure, block 1 has mass m, = 440 g, block 2 has mass m2 = 590 g, and the pulley is on a fric...

A: Given: Mass of block 1, m1=440 g Mass of block 2, m2=590 g  Radius of pulley, R=5.4 cm Distance cove...

Q: 1. Point charges q1 and q2 of +6nC located at the origin and -8nC located at (30 cm, 0) Calculate th...

A: Electric field due to a point charge is given by E = kq/r2

Q: At a top of a building, a projectile is launched with an initial velocity of 25.0m/s at an angle of ...

A: Given Initial velocity of the projectile is v0=25.0 m/s Angle of projection with the horizontal is θ...

Q: 47. A dropped rubber ball hits the floor with a speed of 8.0 m/s and rebounds to a height of 0.25 m....

A: 47) Initial velocity (u) = 8 msLet the mass = m final height after rebound (h) = 0.25 m   

Q: 3. The motion of a particle is governed by the relation a = 8t2, where a is in ft/s2 and t is in sec...

A: Given: The acceleration of the object is a=8t2                                                      ...

Q: Johnson drove east for 3 seconds with a rate of 5 meters per second. He then took a quick turn to 50...

A: Draw the motion diagram of the Johnson.

Q: A 18Kg box is pulled to the right by a 300N force that is 30 degrees above the horizontal. A constan...

A: F = 300 N  M = 18 kg  Φ = 30 o  Frictional force is f = 175 N  Distance is S = 200 m .  

Q: |An atom that carries acherge equal to the Charge of an electron- the Velocity of the atom is (2oo K...

A:

Q: 1. The electron with a charge of 1.60x10-19 C and proton with 1.60x10-19 C of a hydrogen atom are se...

A:

Q: 2. Calculate the electric flux in each surface: -10.0 uC +3.0 µC +1.0 µC +7.0 uC -8.0 µC

A: Electric flux through a closed surface is given by charge enclosed by the surface divided by the per...

Q: The wavelength of light emitted by a krypton laser is i = 568.2 nm. What is the frequency of these l...

A:

Q: How will you describe the particles in solid? The particles in solid are A Figure 1. Particles of So...

A:

Q: A heavy sled is being pulled by two people, as shown in the figure. The coefficient of static fricti...

A: Given,Coefficient of kinetic friction, μk = 0.403Coefficient of static friction μs =0.643mass of the...

Q: 1. Light travels from air into an optical fiber with an index of refraction of 1.44. If the angle of...

A: According to question we need to find angle of reflection?

Q: At a top of a building, a projectile is launched with an initial velocity of 25.0m/s at an angle of ...

A:

Q: a) Calculate the change in Potential Energy of 8 million kg of water dropping 150 m down the intake ...

A: Given, Mass=8millon Height=150m Acceleration due to gravity=9.8m/s²  

Q: The general solution of the Schrodinger equation for a particle confined in an infinite square-well ...

A:

Q: In the figure, one end of a uniform beam of weight 270 N is hinged to a wall; the other end is suppo...

A:

Q: Consider a charged sphere whose charge is concentrated at the center, If the sphere of radius 10 cm ...

A: In this case consider a solid sphere of radius R,  if q is the amount of charge is given to the sphe...

Q: The electric field intensity at a spot P is 2 N/C due to a point charge Q. Compare the force experie...

A:

Q: A long jumper leaves the ground at an angle of 20.0° to the horizontal and at a speed of 11.0 m/s. a...

A:

Q: are hung on a spring scale to determine their mass (a) What is the force constant (in N/m) of the sp...

A: Given, spring is stretches by, x = 7.60 cm load, m = 10.5 kg

Q: The intensity on the screen at a certain point in a double-slit interference pattern is 65 % of the ...

A: Given The intensity at a certain point is 65% of the maximum value. If the maximum intensity is I0 a...

Q: Based on the charge arrangement shown below, what would baraj say is the direction of force on the +...

A: