What is a black hole. Explain
Q: The mean kinetic energy of one mole of gas per degree of freedom (on the basis of a kinetic theory o...
A: Introduction: The kinetic theory of gases assumes that the molecules are very small relative to the ...
Q: What is Black hole? a) Super surface of the atmosphere b) Ozone layer c) Super dense planetary mater...
A: C
Q: Given a block which is at rest on a perfectly flat smooth table with no friction. You push with your...
A: Correct Answer- B) 6.00 m/s2
Q: Which of the following is not a state function? a) Work done at constant pressure b) Enthalpy c) Wor...
A: Option
Q: A firm has a computer, which it uses for a variety of purposes. One of the major costs associated wi...
A: Solution: As per the given data, In house cost per line=1.5 Additional cost=30,000 Outside cost ...
Q: A simple pendulum makes 97 complete osdillations In 3.10 min at a location where g- 9.80 m/s. (a) Fi...
A: Part (a) Given: The number of oscillations made by pendulum is n=97. The time taken to made the num...
Q: 1. Two blocks with masses m, and m2 are connected by a light string passing over a pulley of radius ...
A: Given that: μ1=Coefficient of kinetic friction between m1 and surfaceμ2=Coefficient of kinetic fric...
Q: The thermal capacity of 40g of aluminium (specific heat = 0.2 cal°g-1 C-1) is ___________ a) 40cal°C...
A: Option
Q: If earth loses its gravity, then for a body ___________ a) A weight becomes zero, but not the mass b...
A: A
Q: 0.80. Calculate the surface temperature of the probe. Assume that there are no radiative
A: Given: d=65 cm P=450 W e=0.80 Formula used: A=π4d2 PA=eσT4
Q: A copper wire of length 3m and 1mm diameter is subjected to a tension of 5N. Calculate the elongatio...
A: D
Q: A rubber disc of 80 g mass and 4 cm radius slides along an air table at 1.5m/s, as shown in figure a...
A: Moment of inertia of the Disc 1 I1=12M1R12=12×80×10-3×4×10-22 =640×10-7 Kg m2I2=12M2...
Q: Write a note " Inclined plune on is a machine?"
A: In this, figure there is a mechanism o...
Q: Find the value of q1+q2?
A: Coulomb’s law for electrostatic force (F) between two charges (Q1 and Q2) separated by distance (r) ...
Q: Please read through the instructions
A: (a) Given: The equation of helix is R^t=cos2ti^sin2tj^+4tk^. Introduction: The curvature measures ho...
Q: During adiabatic compression of a gas, its temperature ___________ a) Falls b) Remains constant c) R...
A: C
Q: In a reaction involving reactants in the gas state, how does increasing the partial pressures of the...
A: When the partial pressure of the gas is increases, then the force increases, so that molecules separ...
Q: The internal energy change in a system that has absorbed 2kcal of heat and done 500 J of work is? a)...
A: Option
Q: The temperature of sink of Carnot engine is 27°C. Efficiency is 25%. Then ___________ a) 227°C b) 32...
A: C
Q: The breaking stress of a wire depends upon ___________ a) Length of the wire b) Radius of the wire c...
A: C
Q: There are two wires of same material and same length while the diameter of second wire is two times ...
A: D
Q: Which one of the following statements is true? A dog whistle isn’t loud enough for humans to hear, o...
A: 1) A dog whistle is in ultrasonic range (i.e. frequency is higher than 20kHz) as dogs can hear this ...
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: A Chevrolet Corvette convertible can brake to a stop from a speed of 60.0 mi/h in a distance of 123 ...
A: Given: The initial velocity of the car is 60 mi/hr and the car stops so the final velocity of it is ...
Q: A 1.50 m cylindrical rod of diameter 0.500 cm is connected to a power supply that maintains a consta...
A:
Q: ving, prove that the given series converges. ak -k=1 1+ k³ar° ak 1+ak ak k=1 < 00.
A:
Q: Q- 2 Two desistón be connecto d 102 to ostain to a minimum cuelnt bottey giov -10 V maximum ullent '...
A: Note: Since we only answer up to 1 question, we’ll answer the first question. Please resubmit the qu...
Q: On a hilly region, water boils at 95°C. What is the temperature expressed in Fahrenheit? a) 100°F b)...
A: B
Q: According to Newton’s law of cooling, the rate at which a body cools is proportional to (∆θ)n, where...
A: D
Q: If there is no error in the meter, determine what is the specific mass of fluid X and what is the pr...
A: pressure in a container at depth h is equal to = ρgh N/m3 where ρ is the density of the fluid g is...
Q: Which of the following is an effective coolant? a) Oil b) Mercury c) Water d) Acids
A: C
Q: In a crowd of body-to-body people, if one person pushes another person, a wave is set up as that “pu...
A: Introduction: A vibrating object pushes against the randomly-moving air molecules in the vicinity of...
Q: David the shepherd boy faces Goliath the soldier in a battle. The only weapon David has is a slingsh...
A: Given : Angle θ = 30° Horizontal displacement x = 10 m Vertical ...
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: what is vector C in this case?
A: The vector components are overlaid on the figure below, So the vector A can be written as, A→=11....
Q: A JFET has a specified Pinch- off Voltage of 5V. when Vas =0, what is Vos at the Point where the dra...
A: This is a question from the electronics. JFET (Junction Field-effect Transistor): JFETs are voltage-...
Q: During adiabatic compression of a gas, its temperature ___________a) Fallsb) Remains constantc) Rise...
A: D
Q: Assuming that the system is in equilibrium, find the value of m3, knowing that: r1 = 1.8 mr2 = 0.6 m...
A:
Q: Given a mass of 2.00 kg. Let g = the acceleration due to gravity on Earth in SI units. Which of thes...
A: Weight: The force exerted by the earth on the object is called the weight of an object. As everybody...
Q: If in a wire of Young’s modulus Y, longitudinal strain is produced, then the value of potential ener...
A: The correct option is d. That is, If in a wire of Young’s modulus Y, longitudinal strain is produce...
Q: Heat was given to a body, which raises its temperature by 1°C is ___________a) Water equivalentb) Te...
A: C
Q: A black body radiates energy at the rate of 1×105 J/(sm)2 at a temperature of 227°C. The temperature...
A: A
Q: What is the area of a rectangle whose electric flux is 43 C^2/Nm^2 and electric field of 84nN/C
A: Given, Electric flux ϕ=43 N*m2/Celectric field E=84 n N/C
Q: A quantity of heat required to change the unit mass of a solid substance, from solid state to liquid...
A: Latent heat of fusion refers to the change of solid state into liquid state. It is also known as mel...
Q: Critical velocity of the liquid ___________ a) Decrease when radius decreases b) Increases when radi...
A: C
Q: A 3 kg object is under the effect of a force of 6i + 10j + 12k N while traveling at 4i + 5j + 6k.A) ...
A: (a) The force is equal to mass and acceleration, F→=ma6i^+10j^+12k^=3a→a→=2i^+3.33j^+4k^ The accele...
Q: For a constant force, a rope breaks due to stress. Which of the following is useful to reduce the st...
A: C
Q: Ship A sails from A to B, on a bearing of 330° for a distance of 24km. Ship B sails from A to C on a...
A: Let l1 and l2 denote the distances, α and β denote the bearing of the points B and C from point A, a...
Q: Please help. This problem involves finding the acceleration of masses attached to pulleys. Thank you...
A: The tensions in the ropes are overlaid in the diagram below, Choosing downwards to be the positiv...
Q: Explain Surface Tension
A: Surface tension could be defined as the property of the surface of a liquid that allows it to resist...
What is a black hole. Explain
Step by step
Solved in 3 steps with 1 images
