Does the speedometer of a car measure speed or velocity? Explain.
Q: A hydrogen atom in an excited state emits a photon of wavelength 95 nm. What are the initial and fi n...
A: Given A hydrogen atom in an excited state emits a photon of wavelength 95 nm. What are the initial a...
Q: 36. (a) What is the average useful power output of a person who does 6.00x10^6 J of useful work in 8...
A: Power is defined as rate of doing work. P= W/t work done is stored as energy in the body therefor...
Q: What is the kinetic energy of (a) an electron having a momentum of 40 GeV/c? (b) a proton having a m...
A: Given, Momentum of electron is 40 GeV/c Momentum of proton is 40 Gev/c
Q: Capacitor
A:
Q: Two people are pushing horizontally on a crate of mass 50 kg. One person is pushing from the right w...
A: The kinetic friction force on the object is given by Where = Coefficient of kinetic friction, FN =...
Q: Situation 8. The 40lb door is supported by hinges at A and B. The y-axis is vertical. The hinges do ...
A: Given: The weight of the door W = 40 lb. As it is mentioned in the problem that hinge B does not ex...
Q: A photon is emitted when an electron in a three- dimensional cubical box of side length 8.00 * 10-11...
A: Given: The length of a cubical box is L=8.00×10-11 m. The initial state of photon is nx=2,ny=2,nz=1...
Q: What is the alpha activity of a 10-kg sample of 235U that is used in a nuclear reactor?
A: Given: Mass of the sample m = 10 kg.
Q: In which of the following situations would you expect the magnitude of the force the seat of your ca...
A: Normal force during the motion along an incline at a constant speed, N=mgcosθ The gravitational forc...
Q: If a cyclist is going around a curve at constant speed, is he accelerating? If so, what is the direc...
A: Given: The cycling of a cyclist around a curve at a constant speed.
Q: An ideal spring of negligible mass is 12.00 cm long when nothing is attached to it. When you hang a ...
A: A force required to stretch a spring a distance x is F = kx Weight of the given mass is the force th...
Q: A block of mass m is on a frictionless track, initially at a height h above the ground. The block sl...
A: Using conservation of energy of the first block ∆K=-∆Um2u2-0=mghu=2gh Using conservation of momentum...
Q: A particle slides along the frictionless track shown in Figure 4 starting fromrest at pointA. Find (...
A:
Q: 25. (a) How high a hill can a car coast up (engine disengaged) if work done by friction is negligibl...
A: Applying conservation of energy , we can write that Einitial=Efinal. Total energy is sum of Kinet...
Q: Calculate the refractive power of the cornea when it is in contact with water. The index of refracti...
A: Consider the pictorial representation of the Cornea’s cross-section as shown below: Outside the...
Q: A man of mass M=70 kg standing on ice kicks a rock of mass m = 1 kg giving it a velocity vmek =5 m/s...
A: Solution: Given Values, Mass of man(M)=70 KgMass ofrock (m)=1 Kgvelcocity of rock(vrock)=5 m/s
Q: Make a rough sketch of the trajectory of a ball after it has been thrown. Draw the ball in at least ...
A: (1) Introduction: A projectile is an object upon which the only force acting is gravity. There are a...
Q: A small 0.70-kg box is launched from rest by a horizontal spring as shown in the figure below. The b...
A: We can use the relation Work done by non conservative force = change in total energy. m = 0.70 kg k ...
Q: A 76.0 kg rock is rolling horizontally at the top of a vertical cliff that is 20 m above the surface...
A: (a) According to kinematics equation, s=ut+12at2 Use the given values, 20=0+0.5×9.8t2t=2.02 s To tra...
Q: let aperture stop == radius of lens == object height
A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you. ...
Q: Calculate the force and potential energy of interaction between two He atoms separated by 4 Å in ai...
A: Given : Interaction between two He atoms separated, γ = 4 Å Polarizability, α =0.2×10-30m3 First Io...
Q: When an electron beam goes through a very small hole, it produces a diffraction pattern on a screen,...
A: Due to the uncertainty principle, since the position of the election is determined parallel to the d...
Q: An egg is thrown nearly vertically upward from a point nearthe cornice of a tall building. The egg j...
A:
Q: A parachuter of mass 139 kg above Earth (g = 10 m/s2) experiences a drag force modeled by -0.04 v (N...
A: From Newton's second law of motion mg-kv=mdvdt∫0vdvmg-kv=∫0tdtm-1klnmg-kvmg=tmmg-kvmg=e-ktmv=mgk1-e-...
Q: What determines whether a given photon is an x ray? Could an x ray have a wavelength longer than som...
A: A photon is said to be an X-ray photon or not is depending on its wavelength. The wavelength of x ra...
Q: Doubling the frequency of a wave in the range of 25 Hz to 3 kHz represents what change in the maximu...
A:
Q: Tarzan, in one tree, sights Jane in another tree. He grabs the end of a vine with length 20 m that m...
A: Given: The length of the vine L = 20 m. The angle of vine with vertical is 45o. The angle of vine w...
Q: Two coils are wound around the same cylindrical form, When the current in the first coil is decreasi...
A: (a) The induced emf in the second coil is ε2=Mdidt Here, ε2 is the magnitude of emf induced in the s...
Q: You are asked to design a spring that will give a 1160 kg satellite a speed of 2.50 m>s relative ...
A: Part (a) Given: The mass of satellite is m=1160 kg. The relative speed of satellite is v=2.50 m/s. ...
Q: Jack throws a ball at an angle of 60 degrees above the horizontal from the top of 45 m tall building...
A: The equation of motion for a projectile fired at an angle θ above the horizontal is given by Where ...
Q: calculate the weight of the hanging mass fg2
A: There are ten washers, each washer weighs 10 g. Therefore the total hanging mass is 10g ×10=100 g. T...
Q: Problem: Consider that the trunk has mass M travels at a constant velocity along a frictionless incl...
A: Given, mass of trunck is M which pulling by rope on a inclined and moving with constant velocity
Q: 5. Write the steps of calculation in detail As shown in the following figure, the negative charge Q;...
A: Given: The magnitude of the charge Q1 = - 0.5 μ C The point P at (0.3m,0.4m)
Q: (a) The probability that a molecule in the atmosphere is at a height between z and z + dz above the ...
A: Hello. Since your question has multiple parts, we will solve first question for you. If you want rem...
Q: *PLEASE ANSWER QUESTIONS #4, #5, and #6* Make a sketch of the trajectory of a ball after it has bee...
A: Given, Projectile motion of a ball ,air resistance is neglible
Q: A parallel-plate capacitor having square plates 4.50 cm on each side and 8.00 mm apart is placed in ...
A: Capacitance of a parallel plate capacitor is given by C = ε₀Ad here, A is the area,d is the distanc...
Q: A hydrogen atom in an excited 5f state is in a magnetic fi eld of 3.00 T. How many energy states can ...
A: The state 5f means n = 1 and l = 3. So, the possible values of ml=0, ±1, ±2, ±3. The number of possi...
Q: If you threw a ball straight up, the velocity is pointing vertically upward for a short time. Is th...
A: Given: Velocity is pointing vertically upward for short time.
Q: An insect 3.75 mm tall is placed 22.5 cm to the left of a thin planoconvex lens. The left surface of...
A:
Q: Show that ugr correctly represents the velocity of the particle both relativistically and classicall...
A: For non-relativistic case: ugr=dEdp=ddpp22m ∵E=p22m=2p2m=pmugr=v Therefore, in no...
Q: A bullet of mass 120 g is fired horizontally into a fixed wooden block with a speed of 20 m/s. The b...
A: The kinematic equations of motion are given by Where u = Initial speed, v = final speed, a = acce...
Q: Rudolf Mössbauer discovered in 1957 that transitions from an excited nuclear state occur with neglig...
A: Given: A transition like that in 191Ir from the 129- keV excited state to the ground state has a lif...
Does the speedometer of a car measure speed or velocity?
Explain.
Step by step
Solved in 2 steps
