A thick wire is suspended from a rigid support and no load is attached to its free end but the wire is under stress. a) True b) False
Q: A solid sphere is rotating in free space. If the radius of the sphere is increased keeping mass same...
A: B
Q: Moment of inertia of a circular wire of mass M and radius R about its diameter is _____________ a) 1...
A: B
Q: The acceleration due to gravity on the planet A is 9 times the acceleration due to gravity on planet...
A: Option
Q: On a cold morning, a metal surface will feel colder to touch than a wooden surface, because of _____...
A: Option
Q: The earth revolves around the sun with an angular velocity of 2×10-7rad/s in a circular orbit of rad...
A: Force exerted by the sun = Centripetal force F = Mrω2 F = 6×1024×1.5×1011×(2×10-7)2 = 36×1021 N
Q: A stone of mass m tied to one end of a string of length l is rotated in a circle with the other end ...
A: Option c
Q: Could you please answer? Thanks.
A: Given: The mass of the guitar wire is m=0.5 g. The length of the stretched wire is l=30 cm. The tens...
Q: If the earth were to shrink suddenly, what would happen to the length of the day? a) It increases b)...
A: C
Q: The angular momentum of a body is 3.14 is and its rate of revolution is 10 cycles per second. Calcul...
A: D
Q: A spring has a spring constant of 40 N/cm and is stretched 6 cm. Determine the object's spring pote...
A: Given: The spring constant is 40Nm. Stretch in the spring is 6cm.
Q: (a) Why are gases more easily compressed than liquids?(b) Why do liquids have a greater ability to f...
A:
Q: If the amount of heat energy received per unit area from the sun is measured on earth, mars and Jupi...
A: C
Q: Which force is responsible for a car's decrease in velocity when brakes are applied? А gravity buoya...
A: The correct option is D. Friction. Friction is responsible for the car to get stopped when brakes a...
Q: sulati spn ributed throughout erical shell with no r us of the shell is 10 nearby.
A: Given : Radius of the insulating sphere =a = 5 cminner radius of the shell =P1 =10 cmOuter radius ...
Q: Comets mover around the sun in highly elliptical orbits. The gravitational force on the comet due to...
A: Option
Q: If there is a change of angular momentum from J to 4J in 4s, then the torque is ___________ a) (3/4)...
A: Option
Q: In an inelastic collision, the final kinetic energy is always less than the initial kinetic energy o...
A: True
Q: A machine gun fires a bullet of mass 40g with a velocity of 1200m/s =. The man holding it can exert ...
A: Let the maximum number of bullets than can be fired per second be nChange in momentum of n bullets =...
Q: Please show formulas. I need help on parts f and g.
A: Transverse Waves Transverse waves are a type of wave where the particles in the waves oscillate perp...
Q: Q.3) Please explain Newton's laws of motion.
A: Generally the Newton's law of motions are three categories they are Newton first law of motion Ne...
Q: A spherical shell of radius 3.34 cm and a sphere of radius 6.97 cm are rolling without slipping alon...
A: Given data, Radius of spherical shell = 3.34 cm = 0.0334 m Radius of sphere = 6.97 cm = 0.0697 m As...
Q: Thank you!
A: The force diagram is shown below,
Q: The kinetic energy is water is used to run turbines. a) True b) False
A: Option b
Q: What is thermal conductivity
A: The thermal conductivity of a material is a measure of its ability to conduct heat. It is commonly d...
Q: If a person standing on a rotating disc stretches out his hands, the angular speed will ___________ ...
A: D
Q: The position of a harmonic oscillator, a mass-spring system, is described by the following expressio...
A: Given, x=6.7cmcos7.8t+5π6 So velocity will be v=dxdtv=-6.7cm×7.8rad/ssin7.8t+5π6 For maximum velocit...
Q: Kepler’s second law is based on ___________ a) Newton’s first law b) Newton’s second law c) Special ...
A: D
Q: What will happen to the elastic property of Gold when Potassium is added to gold? a) The elastic pro...
A: The addition of impurities causes variation in the elastic property of materials. Potassium when add...
Q: Internal force is responsible for the change in velocity of an object. a) True b) False
A: B
Q: In an elastic collision of two billiard balls, the total kinetic energy is conserved ___________ a) ...
A: This is a question related to the elastic collision. Elastic collision: An elastic collision is a co...
Q: A spring balance is suspended from inside an artificial satellite revolving around the earth. If a b...
A: D
Q: A block has been placed on an inclined plane with the slope angle θ, block slides down the plant at ...
A: Option
Q: Four point charges are equally separated by 1.00 m in air as shown. If q1 = 3.0 nC, q2 = -4.0 nC, q3...
A: q1=3.0nC q2=-4.0nC q3=2.0nC q4=-5.0nC let say midpoint of q2 and q3 is P distance of P from q1=1.5m ...
Q: A boat having a length of 3m and breadth 2m is floating on a lake. The boat sinks by one cm when a m...
A: Given: The length of the boat l = 3 m. The breadth of the boat b = 2 m. The height of boat sinks h ...
Q: If a ladder weighing 250N is placed against a smooth vertical wall having a coefficient of friction ...
A: Option a
Q: 15) Which is wrong with tunneling? A) Photons can be tunneled. B) Photons cannot be tunneled. C) Pro...
A: B
Q: question #2 and #3
A: 2. Mention the quantities on an excel sheet and select the two columns to plot an X-Y scatter. Add t...
Q: The angular momentum of a body is 3.14 is and its rate of revolution is 10 cycles per second. Calcul...
A: Given data, Angular momentum L=3.14 J·sω=10 cycles per seconds=10 x 2π rad/s=20π rad/sω=20π rad/s
Q: If a star is moving rapidly towards us, how does the doppler shift affect its spectrum? Is it redshi...
A: Given, A star is moving rapidly towards us, there will be doppler shift in the spectrum.
Q: Which of the following is not a conservative force? a) Elastic force b) Gravitational force c) Force...
A: Option c
Q: A pressure cooker reduces cooking time for food, because ___________ a) Heat is more evenly distribu...
A: The correct option is D. A pressure cooker reduces cooking time for food, because ___________ d) Bo...
Q: 2 A ball is thrown up with a speed of 20 m/sec. Assuming g= 10m/sec², plot a velocity-time and an ac...
A:
Q: Kinetic energy with any reference must be ___________ a) Zero b) Positive c) Negative d) Either nega...
A: B
Q: What will be the length of a mercury column in a barometer tube, when the atmospheric pressure is 75...
A: B
Q: In a bicycle the radius of rear wheel is twice the radius of the front wheel. If rf and rr are the r...
A: Option c
Q: torque of 10Nm is applied to a flywheel of mass 1kg and radius of gyration 50cm. What is the resulti...
A: Given: Torque,τ=10 Nm Mass, m=10 kg Gyration, k=0.5 m
Q: A car of mass 1.5 * 10^3 kg is traveling on a country road towards the village at 55 miles per hour....
A: Initial velocity of the car=55 miles/ hr=24.5872 m/s Final velocity of the car=30 miles/hr=13.4112 m...
Q: Explain Surface Tension
A: Surface tension could be defined as the property of the surface of a liquid that allows it to resist...
Q: What is the voltage,in V, across the resistor labeled R3? The battery shown provides a potential dif...
A: According to the circuit diagram, the resistors R3 and R4 are connected in parallel and their equiva...
Q: If the resultant of all the external forces acting on a system of particles is 0, then from an inert...
A: B
A thick wire is suspended from a rigid support and no load is attached to its free end but the wire is under stress.
a) True
b) False
Trending now
This is a popular solution!
Step by step
Solved in 2 steps