Power is ______ a) Rate of doing work b) Ability to do work c) Rate of energy creation d) Equivalent to work
Q: On calculating which of the following quantities, the mass of the body has an effect in simple proje...
A: B
Q: What is the unit for measuring intensity of light? a) Candela b) Lightyear c) Meter d) Mol
A: A
Q: What does a Voltmeter measure? a) Voltage b) Current c) Length d) Speed
A: A
Q: The brightest nebula in the sky is __________ a) Orion b) Pleiades c) Cepheid d) Trifid
A: A
Q: Which of the following is not a system of units? a) MKS b) CGS c) SI d) Decibel
A: D
Q: Distance between two cities, in standard units will be measured in ______ a) Meter b) Kilometer c) M...
A: C
Q: Which of the following is not true about projectile motion? a) It is an example of motion in a plane...
A: motion of an object in gravitational field near earth surface where the gravitaional acceleration is...
Q: What causes the motion of a body which is initially in the state of rest? a) Force b) Displacement c...
A: A
Q: A velocity vector (5m/s) is making and angle of 60 degrees with X axis has a horizonal component of ...
A: A
Q: Convert 5 N to Dynes. a) 500000 Dynes b) 500 Dynes c) 5 Dynes d) 0.5 Dynes
A: A
Q: Two vertically hanging wires have a fixed horizontal sep 85 cm, and they carry upward c rents of i1 ...
A: Given: The distance between the two wires is 85 cm. The current in wire 1 is 3.5 A. The distance whe...
Q: Multiplying 2î + 7ĵ by 5 gives ______ a) 10î + 35ĵ b) 2î + 35ĵ c) 10î + 7ĵ d) 2î + 7ĵ
A: A
Q: The capacitor in the figure below is uncharged for t < 0. If e m f = 9.42 V, R = 59.4 Ω, and C ...
A: Given, emf,ε=9.42V,Resistance,R=59.4ΩCapacitor,C=2.50μF = 2.5×10-6FExpression be usedQ=CV(1-e-tRC)he...
Q: Which of the following is not true about projectile motion? a) It is an example of motion in a plane...
A: A
Q: In which coordinate system do we use distance from origin and to angles to define the position of a ...
A: C
Q: coin and a bag full of rocks are thrown in a gravity less environment with the same initial speed. W...
A: C
Q: Which of the following gives the most accurate result for time measurement? a) Wall clock b) Digital...
A: D
Q: A football is projected at an angle of 45° from the ground with an initial velocity of 10 m/s, take ...
A: C
Q: What happens when a vector is multiplied by a scalar? a) Its magnitude gets multiplied by that much ...
A: A
Q: In which of the following states does a body possess kinetic energy? a) Rest b) Motion c) When place...
A: B
Q: truck with a mass of 2500 Kg travelling with an acceleration of 5 m/s2 hits a scooter. What force do...
A: A
Q: The gradient of velocity v/s time graph is equal to____ a) Velocity b) Acceleration c) Distance d) M...
A: C
Q: In how many independent directions can a vector in a plane be resolved? a) 1 b) 2 c) 3 d) 4
A: C
Q: For a grand canonical ensemble, show that a ln Z + μ(N) (E)
A: This is a problem from thermal and statistical physics. To solve this problem, we use the partition ...
Q: When a body collides with a wall or the ground, what assumption do we make? a) The mass of the body ...
A: C
Q: Electric Field lines for a system containing four charges (denoted by the circles) are displayed. Di...
A:
Q: Velocity of a man is 25 units in the positive X direction and 75 units in negative Y direction start...
A: A
Q: The barometer shows a value of 770 mm Hg; dry bulb temperature is 45°C; wet bulb temperature is 30°C...
A: Given, Temperature of dry bulb, td = 45o C Temperature of dry bulb, tw = 30o C And pressure, PB = 77...
Q: USING GAUSS LAW, PROVE THAT THE ELECTRIC FIELD AT VERY CLOSE POINT FROMA CHARGED CONDUCTOR GIVEN BY ...
A: Here, is the diagram The charge is on the outer surface.
Q: The device diagramed in the figure below is called an Atwood's machine. Let m1 = 2kg and m2 = 4 kg. ...
A: This is a problem based on Newton's law. To solve this problem, We will first write the equations, f...
Q: What is least count of an instrument? a) The lowest value that can be measured accurately b) The gre...
A: A
Q: bus moves the first few meters of its journey with an acceleration of 5 m/s2 in 10s and the next few...
A: B
Q: A velocity vector (5m/s) is making and angle of 60 degrees with X axis has a horizonal component of ...
A: Given data: The velocity is v=5 m/s. The angle is θ=60°.
Q: A 2.0-kg block slides down a smooth incline, and then travels on a rough horizontal surface (He 0.25...
A: When the block is at point A on the incline, its total energy is the sum of its kinetic and potentia...
Q: H.W. Or find the center of mass and inertia of a thin, -shaped (u), three-sided bent wire, all piece...
A: Let b denotes the length of each side, m denotes the mass of each side, x denotes the x-coordinate o...
Q: A worker, named Caner, have been hired to design a roller coaster that will only carry two passenger...
A: Let the total mass of the car be M, the maximum height that can be reached by the car be H, the maxi...
Q: What is a vector quantity? a) A quantity with only magnitude b) A quantity with only direction c) A ...
A: C
Q: A body moves from point A (2,1) to point B (7,13) to point C (15,19). What is the average speed of t...
A: This is a problem from the kinematics. This requires first to draw its figure.
Q: In an annealing process-a process wherein materials such as glass and metal are heated to high tempe...
A: For the equation to be homogeneous, ht=ρcLht=ρcLh=ρcLt
Q: In an experiment, it is found that the experimental value is very close to actual value, hence the e...
A: Answer
Q: Which of the following is not an example of motion in a plane? a) A car moving in a rectangular path...
A: This is a question from the Kinematics. This requires understanding the motion in 1-dimension, 2-dim...
Q: A force vector (50 N) is making and angle of 30 degrees with X axis has a vertical component of magn...
A: A
Q: A body is moving with a constant acceleration of 4î + 3ĵ, starting from the origin. What will be the...
A: Given: The value of the constant acceleration is 4î + 3ĵ. The body starts from origin. ...
Q: Number of primary equations of motion is ___ a) 1 b) 2 c) 3 d) 4
A: A
Q: A tensile stress is to be applied along the axis of a cylindrical brass rod with diameter of 200 mm....
A: Concept used: Stress applied on the object divided by strain in object gives the young's modulus of ...
Q: 89 Mega Joules can also be expressed as _____ a) 8900 Joules b) 89000000 Joules c) 89000 Joules d) 8...
A: B
Q: Which of the following is a use of dimensional analysis? a) To check the dimensional correctness of ...
A: A
Q: Weight represents ___ a) Mass b) Time c) Pressure d) Force
A: A
Q: a This is a conducting outer shell of inner radius a and outer radius b. There's a point charge Q in...
A: According to Gauss' law the electric flux out of a volume is proportional to charge contained inside...
Q: Which of the following is a unit of temperature? a) Degree b) Meter c) Second d) Fahrenheit
A: D
Power is ______
a) Rate of doing work
b) Ability to do work
c) Rate of energy creation
d) Equivalent to work
Trending now
This is a popular solution!
Step by step
Solved in 2 steps