“In general, the normal force is not equal to the weight.” Give an example in which these two forces are equal in magnitude, and at least two examples in which they are not.

Q: A man is dragging a trunk up the loading ramp of a mover’s truck. The ramp has a slope angle of 20.0...

A: Considering, x direction as the direction of the inclined plane and y direction to be perpendicular ...

Q: Find the de Broglie wavelength of neutrons in equilibrium at the temperatures (a) 5.0 K and (b) 0.01...

A: The wavelength for thermal neutrons is, λ=h3mkT (a) therefore, λ=6.626×10-34 Js31.67×10-27 kg1.38×10...

Q: (Insulator Metallic Shell An insulating sphere of radius 2 cm and charge -4 uC is surrounded by a sp...

A: Given, An insulating sphere has radius of 2 cm and charge is - 4 micro coulomb and surrounded by met...

Q: A man weighing 73 N stands at the middle rung of a steel ladder uniformly weighing 43 kN/m. Assuming...

A: Given: The weight of the man is W=73 N. The weight per unit length of the ladder is w=43 kN/m. Ref...

Q: Solve the following question

A: Given values, ω=gk+Tk3ρ Where,  k=wave numberg=acceleration due to gravityρ=densityT=surface tension

Q: A force F that is at an angle 60° above the horizontal is applied to a box that moves on a horizonta...

A: Given data: The angle of the force is θ=60∘. Part (a)  The work done can be calculated as: W=Fdcos...

Q: A driver in Massachusetts was sent to traffic court for speeding. The evidence against the driver wa...

A: Speed of an object is defined as the distance travelled in unit time. That is, speed = distance trav...

Q: The inductor shown in Fig. has inductance 0.260 H and carries a current in the direction shown. The ...

A: (a) The potential difference between points a andb, Vab=1.04 V The induced emf produced due to chang...

Q: What is the central field approximation?

A: Given: Need to explain the central field approximation

Q: Sketch the correct direction of the acceleration vector a⃗ a→ for the system shown in (Figure 1). Sk...

A:

Q: A free neutron is an unstable particle and beta decays into a proton with the emission of an electro...

A:

Q: A small rocket burns 0.0500 kg of fuel per second, ejecting it as a gas with a velocity relative to ...

A: The force with which the rocket moves through air and space is called Thrust. The rocket propulsion ...

Q: Find the x and y coordinates of the centroid of the shape shown below via integration.

A: Solution:   The x and y coordinates of  centroid of the given shape is solved below:   From the abov...

Q: Is the total system energy of a dipole a positive potential or a negative potential? Explain your re...

A: Total system energy of a bound system is always negative. This is so because we take the total energ...

Q: Positronium is an atom composed of an electron and a positron (mass m = me, charge q = +e). Calculat...

A: The reduced mass is given by μ=m1m2m1+m2 Since both masses are equal, μ=me22me=me2 The energy of a s...

Q: Determine the moment of the force F about point O, about point A, and about the line OB. Find the ge...

A:

Q: Two particles collide with a normal direction defined: 0.7i+0.714j (eT=0.714i+-0.7j). The first mass...

A: Given: The mass of first particle is m1=6 kg. The mass of second particle is m2=9 kg. The initial v...

Q: solve a , b , c parts

A: (a) The system is analgous to a simple pendulum.Here, the student can be considered to be equivalent...

Q: Plumb bob at 40.00˚ latitude deviates how many degrees from hanging vertically, due       to earth’s...

A: Assume the pendulum has initially the tension T` without considering rotation of the earth and assum...

Q: 1. Figure shows the power consumption of a certain household in 1 day. Calculate: (a) the total ener...

A: (a) Power P is the energy consumed per unit time. Therefore, the energy E consumed by a household is...

Q: solve only part  " d " &  " e "    do it quick please ill upvote it

A: (d) diagram

Q: A farmer hitches her tractor to a sled loaded with firewood and pulls it a distance of 20 m along le...

A: Given: The distance covered by tractor s = 20 m. The total weight on sled and load w =14700 N. The ...

Q: A 12-pack of Omni-Cola (mass 4.30 kg) is initially at rest on a horizontal floor. It is then pushed ...

A: Part (a) Given: The mass of pack is m=4.30 kg. The distance covered by pack is d=1.20 m. The horizo...

Q: You are standing on a bathroom scale in an elevator in a tall building. Your mass is 64 kg. The elev...

A: The acceleration of the elevator is as follows: at=ddtvtat=ddt3.0 m/s2t+0.20 m/s3t2at=3.0 m/s2+0.40 ...

Q: a) Find the work done by the field in moving a charge, -Q, from infinity to the origin. The charge s...

A: 1.For the spherical shell, The potential is given by V1=-14πε02Q3a2 2. For the circular arc, The pot...

Q: A glass dropped on the floor is more likely to break if the floor is concrete than if it is wood. Wh...

A: In the above figure the two forces is acting. One of these has large force for a very short interval...

Q: Advanced Physics Question

A:

Q: Monochromatic light of wavelength 592 nm from a distant source passes through a slit that is 0.0290 ...

A: Given: The wavelength of monochromatic light is λ=592 nm. The width of slit is a=0.029 mm. The maxi...

Q: Calculate the number of Photon in 1000 L of radiation in a thermal equilibrium at 500 k.

A: A volume of thousand litres is generally considered as 1 cubic meter volume.

Q: A 50.0 kg stunt pilot who has been diving her airplane vertically pulls out of the dive by changing ...

A: Given: A 50.0-kg stunt pilot who has been diving her airplane vertically pulls out of the dive by ch...

Q: A cylindrical conductor with a circular cross section has a radius a and a resistivity r and carries...

A: (a) Given: The radius of the cylindrical conductor is a. The resistivity of the conductor is r. The ...

Q: Determine the power delivered by the voltage source in the network shown below?

A: one end all the resistors are connected to battery while other end is grounded, thus all resistors a...

Q: An electron has a de Broglie wavelength of 2.80 * 10-10 m. Determine (a) the magnitude of its moment...

A: (a)The expression for momentum is,p=hλ                             h=6.626×10-34J.s,λ=2.80×10-10m=6....

Q: Monochromatic light is at normal incidence on a plane transmission grating. The first-order maximum ...

A: The expression for the diffraction grating is as follows: dsinθ=mλ                       1 Use equat...

Q: A car’s velocity as a function of time is given by vx1t2 = a + bt2, where a = 3.00 m/s and b = 0.100...

A:

Q: Is an electron most strongly bound in an H, He+, or Li++ atom? Explain.

A: Among hydrogen H helium ion He+ and lithium ionLi++  . Electrons in the Lithium have strongest bond ...

Q: The RDA for the trace element selenium is 0.000070 g>day. Express this dose in mg>day.

A: Given - The RDA for Selenium is 0.000070 g/day Conversions required -  1 g = 1000 mg

Q: A hydrogen atom in an excited state absorbs a photon of wavelength 410 nm. What were the initial and...

A: The energy of a photon of wavelength is E=hcλ E is the energy, h is the Planck’s constant. Use the g...

Q: The Sun on the right is shining on the four planets to the left. Each planet has an axis of rotation...

A: X on the planet with 90° tilt will have coldest winters. Option d.

Q: Two vehicles are approaching an intersection. One is a 2500 kg pickup traveling at 14.0 m/s from eas...

A:

Q: A box with mass m sits at the bottom of a long ramp thatis sloped upward at an angle a above the hor...

A: Given: The initial speed of box when it moves in the upward direction is u=v0. The final speed of b...

Q: The artifi cially created nuclear isotope tritium (3H) is important in many applications. This isoto...

A: Given: The mean kinetic energy of electron is K=5.7 keV. The diameter of the nucleus is l=3.4 fm. ...

Q: Two blocks, with masses 4.00 kg and 8.00 kg, are connected by a string and slide down a 30.0 inclin...

A:     From this figure  : Applying freebody diagram for the mass 8 kg and 4 kg       8g sin 300 -T -0 ...

Q: Consider two cylindrical objects of the same mass and radius. Object A is a solid cylinder, whereas ...

A: Given: The mass of object A and B is m=220 g. The radius of object A and B is r=21 cm. The height o...