a a (а) (6)
Q: Find the arc length parameter along the given curve from the point where t= 0 by evaluating the inte...
A:
Q: 3. Figure 2 shows a conducting loop of area A in a uniform magnetic field of magnitude B pointing ou...
A: (a) Let B denotes the magnetic field, A denotes the area of the loop, ω denotes the angular frequenc...
Q: Which of the following is NOT a fire tube boiler? a) Cochran Boiler b) Lancashire Boiler c) Locomoti...
A: Option
Q: The number of splitting levels of in 2p orbital would be ________ a) 1 b) 2 c) 3 d) 4
A: Option c
Q: In the figure two curved plastic rods, one of charge +g and the other of charge -g, form a circle of...
A: Radius of circle (R) = 3.93 cm (R) = 0.0393 m Electric charge (q) = 1...
Q: how doppler effect has helped some professionals like (1) doctors and (2) astronomers in their fiel...
A: Doppler shift or Doppler effect is defined as the change in frequency of sound wave due to a reflect...
Q: An athlete in the Olympic game covers a distance of 100m in 10s. His kinetic energy can be estimated...
A: Option d correct
Q: 1. There are 1000 m3 of glycerin in a container at 15°C. What is the difference in volume if the tem...
A: As the temperature is increased the density of glycerin decreases due to the fact that molecules gai...
Q: A scooterist moving with a speed of 36km/h sees a child standing in the middle of the road. He appli...
A: u = 36km/h = 10m/s, v = 0, t = 5sa = (v-u)/t = (0-10)/5 = -2m/s2Retardation = 2m/s2Average retarding...
Q: Which of the following holds good in all natural processes? a) The Doppler Effect b) Newton’s law of...
A: Option b
Q: A body can have energy without momentum. a) True b) False
A: Consider a ball is at rest on the table. Let m denotes the mass of the ball, h denotes the height of...
Q: a
A: Given diagram:
Q: Atom and molecul physics
A: characteristic L alpha photon will be produced when an electron jumps from M shell to L shell energ...
Q: Advanced Physics Question
A: (1) Given: The charge density of the rod is +10 nCm. The point charge is of the magnitude +10 nC. In...
Q: A cyclist moves along a circular path of radius 70m. If he completes one round in 11s, calculate the...
A: Option b
Q: 2. A car of mass 1000kg accelerates to 10ms (a) Calculate the gain in KE of the car. (b) If the engi...
A: KE=0.5mv2=0.51000 kg10 m/s2=50,000 J
Q: A satellite revolves very near to the earth surface. Its speed should be around? a) 5km/s b) 8km/s c...
A: 8 km/s
Q: Which of the following kinetic friction is smaller? a) Limiting friction b) Static friction c) Rolli...
A: Option c
Q: 32 - A warehouse worker applies a horizontal force of 85 N to a 40 kg box standing on the horizontal...
A: Given: The horizontal force acting on box is Fh=85 N. The mass of box is m=40 kg. The distance trav...
Q: Evidence that much of the mass of the universe consist of dark energy has come from __________ a) me...
A: Option
Q: Let us assume that a resistor connected across terminals a and b in the following circuit draws a cu...
A: Given: The current drawn by the resistor between a and b is 5 A. The voltage drop across the 20 Ω re...
Q: Assertion: When a body moves along a circular path, no work is done by the centripetal force. Reason...
A: Option c
Q: What mass of steam at 100°C must be mixed with 150 g of ice at -10°C, in a thermally insulated conta...
A: Given : Temperature of steam = 100°C Temperature of ice = -10°C ...
Q: A person is falling from a certain height. Which of the following is likely to happen? a) If he fall...
A: Option
Q: A satellite orbiting the earth with speed v0. To make the satellite escape, what should be the minim...
A: 41.4%
Q: What is the moment of inertia ? of an object that rotates at 14.0 rev/min about an axis and has a ro...
A: Angular velocity = 14 rev/min Angular velocity = (2π/60)×14 rad/s Angular velocity = 1.466 rad/s
Q: A satellite orbiting the earth with speed v0. To make the satellite escape, what should be the minim...
A: The speed of the satellite is given as, vo TO DETERMINE: The percentage increase in its velocity to ...
Q: Which of the following quantum number gives the shape of atomic orbital of sub-shell? a) n b) l c) m...
A: Option b
Q: A generation station of 6 kw has a load factor of 0.7 and plant capacity factor of 0.8. The plant ha...
A: Option b is correct
Q: P7E5
A:
Q: even more complicated Another UHart elevator system has an counterweight system that starts from res...
A: Concept used: Equations of motion are used to calculate the parameters for uniformly accelerated sys...
Q: the average energy of one electron silver is 3.306 ev. what is the fermi-energy of silver at 0 k? a)...
A: Option d
Q: A uniform rod is set up so that it can rotate about an axis at perpendicular to one of its ends. The...
A:
Q: A cannon sits on a horizontal plain, angled up at 35°. A cannonball is fired with a velocity of 100....
A:
Q: From a building 2 balls A and B are thrown such that A is thrown upward and B is thrown downward. If...
A: Option
Q: 1-Convert the decimal number 57 to its equivalent binary number 2-Convert the binary number 11000110...
A:
Q: *6-56. Determine the moment of inertia for the area about the x axis. -y² = 1 - 0.5x 1m
A: The area of which moment of inertia has to be calculated is as follows:
Q: A spherical shell of radius 3.34 cm and a sphere of radius 6.97 cm are rolling without slipping alon...
A: E=Etrans+Erot=12mvshell2+12Iωshell2=12mrshellωshell2+1223mr2shellωshell2=56mrshellω2shell..............
Q: While launching a rocket of mass 2×104 kg, a force of 5×105 N is applied for 20s. Calculate the velo...
A: Option c
Q: How many light years are there in one metre? a) 9.46×1015ly b) 1.057×10-16ly c) 1ly d) 1×10-16ly
A: 1 light year = 9.46×1015m1m = 1/(9.46×1015)ly = 1.057×10-16ly.
Q: The wave function of fermions is not _________ a) Continuous b) Single Valued c) Symmetric d) Differ...
A: Option c
Q: How many fission takes place per second in a 300 MW reactor, assuming each fission releases 200 MeV ...
A: The correct option is d d) 9.38 x 1018
Q: Which of the following is constant in projectile motion? a) Horizontal component b) Vertical compone...
A: Option a correct
Q: Two trains A and B of length 400m each are moving on two parallel tracks with a uniform speed of 72k...
A: D
Q: For all the quantum states with energy greater than Fermi energy to be empty in a Fermi-Dirac system...
A: Option c
Q: Sample problem 6.13
A: (a) Given: The mass of the bar is m1. The mass of the Planck is m2. The coefficient of friction betw...
Q: A large electroscope is made with "leaves" that are 78-cm-long wires with tiny 43 g spheres at the e...
A: Given : Length of the wire, L = 78 cm = 78 x 10-2 m Mass of the sphere, m = 43 g = 43 x 10...
Q: NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to th...
A: Vertical motion: y0=1.5 mνy0=0y=y0+νy0t-12gt2t=2y0-ygAt point B y=htB=2y0-hgwhen h=854 mmtB=21.5-0.8...
Q: The flying wheel attached to the shaft of steam engine works on the principle of ___________ a) Cent...
A: Option b
Q: A girl, while revolving in a circular orbit happens to throw a spoon outside. What will happen to th...
A: While revolving in a circular orbit, if a spoon is thrown outside, the spoon will continue to rotate...
A 2.0 kg bock of slippery cheese slides along a frictionless track from point a to point b. The cheese travels through a total distance of 20.0 m along the track and a net vertical distance of 8.4 m. Determine how much work is done on the cheese by gravitational force during the slide. Use g = 10 N/kg.
Since the gravitational force is a conservative force, the work done is given by:
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