To push a box up a ramp, which requires less force: pushing horizontally or pushing parallel to the ramp? Why?

Q: Name some electrical appliances at home that needs to be grounded or Earthed and Explain.

A: Earthing system is used in electrical devices to prevent from the shock due to excess current flow. ...

Q: Gayle runs at a speed of 4.55 m/s and dives on a sled, initially at rest on the top of a frictionles...

A: Let  m = sled mass M = Gayle's mass M' = brother's mass u = initial velocity of Gayle V = final velo...

Q: A car is accelerating from rest.  There is a 1.6 g pebble stuck in the tread of one of the tires 0.3...

A:

Q: A thermometer is removed from a room where the temperature is 70° F and is takenoutside, where the a...

A: Given that,The temperature of room = 70°FThe air temperature = 10°FThe thermometer reads the tempera...

Q: The power rating of a resistoris the maximum power the resistor can safely dissipate without toogrea...

A: Given: The power rating for both the resistor is P = 2 W The value of the two resistance is given as...

Q: heat pump operates on a Carnot cycle between the cool exterior of a house and the warminterior. When...

A: This problem can be solved using the formula for coefficient of performance of a carnot heat pump. 

Q: Suppose we drill a hole through the Earth along its diameter and drop a small mass m down the hole. ...

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for yo...

Q: 17. What is the spring constant of a spring that stores 25 J of elastic potential energy when compre...

A: The spring constant(k) of a spring that stores 25 J of Elastic potential energy(E) by 7.5 cm. given,...

Q: A car is driven 216 km west and then 81 km southwest. What is the magnitude of the car's displacemen...

A: Southwest means the angel made by the car is 45°. Based 45° we have to find vertical and horizontal ...

Q: In the alternate universe, how fast must an object be moving for it to have a kinetic energy equal t...

A: The kinetic energy of the object=Ek Ek=pcp=relativisti c momentum of the object=γ m0 vwhere m0 is th...

Q: 1. A wave packet, also called wave group, can be described in terms of a superposition of plane wave...

A:

Q: A long tube contains air at a pressure of 1.00 atm anda temperature of 77.0°C. The tube is open at o...

A: (a) Given: The pressure of air contains a long tube 1.00 atm. The temperature is 77.0°C. The frequen...

Q: An 85 kg man lowers himself to the ground from a height of 10.0 m by holding onto a rope that runs o...

A: Given, Mass of the man,Mm=85kgHeight,h=10mMass of the sandbag,MS=65kg So, here we calculate the net ...

Q: a drone begins flying towards a target located 200 m away from a point of constant altitude. The spe...

A: Given data: wind speed = 3m/s. Drone speed = 5m/s.

Q: According to the information provided. Can you solve the problem? Notice that the formula to solve t...

A:

Q: Using the elliptic Laplacian difference equation, find the steady-state temperature at the interior ...

A: Please see the next step for solution:-

Q: The radius of the sun is 7 x 10^5 km, and the surface temperature is 6000 K. How many metric tons of...

A: We first use Stefan-Boltzmann's radiation law to get the power emitted by the sun. We then use energ...

Q: Advanced Physics Question

A: Draw the pulley system and mention the distances of each pulley from a reference line.

Q: In empty space (er = 1), the region x1 <x <x2 is filled with material with a dielectric coeffi...

A: Given For For And in this region  E1 =(4.5) ux + (7.5) uy+(8.5) uz

Q: Six brass and aluminum spheres are connected by three lightweight rods to form a rigid object shaped...

A: Please see the next step for solution:-

Q: In a Negative Peak Clipper, when the voltage exceeds the knee voltage of the diode during the revers...

A: Negative Diode Clipping Circuit:   Here the reverse is true. The diode is forward biased during the ...

Q: A ring with outer radius r, and inner radius r. (i.e. a disc with a hole, shown in Figure A) has a u...

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and s...

Q: Why must a water skier moving with constant velocity lean backward? What determines how far back she...

A: The FBD of the system is as follows:

Q: A crate slides up an inclined ramp and then slides down the ramp after momentarily stopping near the...

A: Introduction: Friction is the resistance to motion of one object moving relative to another. It is n...

Q: In empty space (er = 1), the region x1 <x <x2 is filled with material with a dielectric coeffi...

A: If the electric field in the vacuum is  Ethen the Electric field in medium with permittivity ∈ will ...

Q: Two-point charges of 2 C and a 5 C are 10 meters apart. A third point charge of 6 C is placed betwee...

A: Given data: The first charge is Q1=2 C. The second charge is Q2=5 C. The third charge is Q3=6 C. Th...

Q: help on Q6

A:

Q: You are asked to design a cylindrical steel rod 50.0 cm long,with a circular cross section, that wil...

A: Given, L=0.5m and H=190J/s To find the diameter first calculate the area of the rod from            ...

Q: A point charge q1 =8.0 nC is at the origin and another point charge q2 = 12.0 nc is on the x-axis at...

A: Given q1=8.0nC=8.0x10-9C at origin q2=12.0nC=12.0x10-9C on x-axis at x=4.0m We need to find electric...

Q: (Please give me solution within one hour)

A: To prove the shortest distance between two points is a straight line is explained as,

Q: A ray of light, P moving in air strikes a glass slab as shown below. of 1 54° Air lag 63 Refractive ...

A: This problem can be solved using laws of reflection. 

Q: An electron beam and a photon beam pass through iden- tical slits. On a distant screen, the first da...

A: Given, An electron beam and photon beam pass through identical slits

Q: eavy (fixed in place) particle with a positive charge Q and mass M. When the light particle is xi di...

A: We may solve this using two approaches. One involves the Newton's Laws and the other involving Work-...

Q: Light having a frequency in vacuum of 6.0 × 10^14 Hz enters a liquid of refractive index 2.0. In thi...

A: As the refractive index is defined by, μ2μ1=cv which shows the refractive index μ2 of liquid with re...

Q: 2. A two-legged robot is programmed so that upon switching it on, it will do a repetitive pair of st...

A: let x be the length of each foot. The walk of the robot is shown in the figure. In two steps the rob...

Q: Solve both. Otherwise leave it for other tutor.  Calculate the wavelength λ1 for gamma rays of frequ...

A: we can calculate the wavelength by using the formula, c=fλ so, c will be 3×108 m/s

Q: The diode current at 25°C for a silicon diode with Is= 55 nA an applied forward bias of 0.8 V is ---...

A: For diode current  given is  temperature T = 250 C = 273 +25 = 298 KIS = 55 nA Voltage = 0.8 V K = 1...

Q: 4) When the block's velocity has the value v = Vmax/2, then its position has the possible values of:...

A: When a system is acted by only conservative forces total energy of the system is the same. This is t...

Q: With the given circuit below, if the input voltage is 20 volts peak-to-peak and the diode is a silic...

A: Please see the next step for solution:-

Q: An object 0.720 cm tall is placed 15.5 cm to the left of the vertex of a convex spherical mirror hav...

A: In ray optics the sign convention is very important factor to keep in mind : 1. All distances above ...

Q: Questions 1-6: Consider a wave on a string that can be described by the following equation: y (x, t)...

A: Using the general equation of a traveling wave one can read out the amplitude, frequency and wavelen...

Q: Gamma-ray detectors like the one described in the preceding problem often use calorimetry to determi...

A: Given, Mass,M=2.5kgSpecific Heat,C=430J/kgKChange in temperature,∆T=10mK=10×10-3KEnergy of gamma ray...

Q: A convex spherical mirror has a radius of curvature of 11.0 cm A. Calculate the location of the imag...

A:

Q: 12 grammes of gas occupy a volume of 4 · 103 m³ at a temperature of 27° C. After the gas is heated a...

A:

Q: A heat engine operates between a high temperature of 1000 °C and a low temperature of 500 °C.Assume ...

A: This problem can be solved using the formula for efficiency of carnot engine. 

Q: A 10 µF capacitor discharges in an element such that its voltage is v = 2e-1000t v. Solve the value ...

A: Given: Capacitance C = 10 µF Voltage V = 2e-1000t V Therefore, Q = CV = 20e-1000t µV Now, we know th...

Q: Solid state: Calculate the volume of simple cells in fcc sc and bcc networks.

A: 1. Volume of the cell in fcc (Face Centered Cubic Structure)  Assume 'a' to be the side of the cube ...

Q: An object is 80 cm from a concave mirror of radius 1 m. Describe the formed image in this case. Why?...

A: The mirror equation is, 1xobject+1ximage=2R        (1) In the given problem the object is at xobject...

Q: How many molecules are present in 1 cm3 of a vessel at 10°C if it is evacuated to the highest rarefa...

A: The volume of the vessel is given as, V = 1 cm3 (or) V = 10-3 m3 The temperature of the vessel is gi...

Q: A 0.0450 kg golf ball initially at rest isgiven a speed of 25.0 m/s when a club strikes it. If the c...

A: Given, mass m= 0.0450kg initial speed u=0 final speed v= 25m/s time t=2ms