9. A refrigerator has a coefficient of performance of 3.00. The ice tray compartment is at −20.0℃ and the room temperature is 22.0℃. The refrigerator can convert 33.0 g of water at 22.0℃ to 30.0 g of ice at −20.0℃ each minute. What input power in watts is required?

Q: D Mu^ 2-2 GV 352 ми B 32 www. Find the potential at the point A, B, C and o =

A:

Q: Is the image upright or inverted? Part C Is the image real or virtual?

A: Real images are formed when the light actually converges, whereas virtual images are formed at the…

Q: The open-sea diving depth record is 534 metres; how much more pressure would the diver have been…

A:

Q: Isabella boarded a ferris wheel. She traveled from the 6 o clock position, the radius being 22…

A: In a right angle triangle  cosθ =BasePerpendicula

Q: Leila is in a bicycle road race. In the first leg, she rides 12km from Hague Park to Bluffer’s Park…

A: (a) Draw the diagram of the motion of Leila.

Q: D. Using ray diagram, draw the image formation by a CONCAVE LENS when the object is found: 1. Beyond…

A:

Q: A solid insulating sphere of 2.0 cm radius is uniformly charged throughout its volume with an…

A:

Q: 6.000 V q salah Bar

A:

Q: 43) What is the change in entropy when 15.0 g of water at 100°C are turned into steam at 100°C? The…

A: in this question the second law of thaermodynamics is used for change in entropy.

Q: (Figure 1) shows the viewing screen in a double-slit experiment with monochromatic light. Fringe C…

A: The equation for the constructive interference in a double-slit experiment is given by: y=mλDd…

Q: The electric field strength outside a finite distribution of charge whose volume charge density…

A: Here density of distribution (p) =p(r)  Outside the distribution total charge enclosed will be the…

Q: In the following diagram, S, and S, are identical sound sources. If sound waves are emitted in…

A: Given: S1 and S2 are in phase. We need to write an expression for L1 and L2 that will result in…

Q: The system in the figure is in equilibrium. A concrete block of mass 307 kg hangs from the end of…

A:

Q: This technology uses an electric generator to convert mechanical energy that comes from wind/…

A: If an electrical conductor moves relative to a magnetic field or if there is a change in the…

Q: a 0.400 kg ball is shot directly upward at initial speed 69.6 m/s. What is its angular momentum…

A:

Q: A block of mass 2.80 placed against a horizontal spring of constant k 885 N/m and pushed so the…

A:

Q: In the figure, block 1 has mass m₁ = 460 g, block 2 has mass m₂ = 580 g, and the pulley is on a…

A: In the given question, Mass of block 1 = m1 = 460g = 0.46kg Mass of block 2 = m2 = 580g = 0.58kg…

Q: Q5: The area under a velocity-time graph represents: a) speed b) displacement c)change in velocity…

A:

Q: A proton moving at speed v = 1.00 x 106 m/s enters a region in space where a magnetic fi eld given…

A:

Q: 10) An aluminum rod 17.400 cm long at 20°C is heated to 100°C. What is its new length? Aluminum has…

A:

Q: A boy named Jose walks westward for 5 km and then northward for 5 km and then 5 km southwest. How…

A:

Q: Q1/ Fill the blanks with the suitable answers 1) The acceleration represents the change of --------…

A: 1) The acceleration represents the change of velocity with respect to time.   2) The unit for…

Q: 5. Block A weighs 45.0 N, and block B weighs 25.0 N. Once block B is set into downward motion, it…

A:

Q: The velocity of a particle along the s-axis is given by v = 1054/3 where s is in millimeters and vis…

A:

Q: (a) An atom of singly ionized helium (atomic number = 2) is initially in its second excited state.…

A:

Q: Which of the following will reach the maximum range? a. A golf ball is hit at an angle of 90° above…

A:

Q: Three containers of different shapes, as shown in the figure Each container is known by the year,…

A: pressure only depends on the ,density, acceleration due to gravity  and height of the liquid  it is…

Q: 9.49 About what axis will a uniform, balsa-wood sphere have the same moment of inertia as does a…

A: I of solid sphere 12 = 2mr^2/5 M.I about a parallel axis = 12 + md^2 I of hollow sphere 11= 2mr^2/3…

Q: A Ferrari sports car can accelerate from rest to 81 km/h (about 60 mi/h) in 1.2 s. What is its…

A: Initial speed, u = 0 km/h = 0 m/s Final speed, v= 81 km/h = 22.5 m/s Time, t = 1.2 s

Q: A 6 m 0 = 30° B At the instant shown the length of the boom AB is being decreased a the constant…

A: Given:-  At the instant shown the length of the boom, AB is being decreased at  the constant  rate…

Q: A 4.2 -g bullet leaves the muzzle of a rifle with a speed of 340m / s . What force (assumed…

A: Write the given values with the suitable variables. m=4.2 g=0.0042 kgu=0 m/sv=340 m/sd=0.83 m Here,…

Q: 22) A 4.0-kg aluminum block is originally at 10°C. If 160 kJ of heat is added to the block, what is…

A: Write the given values with the suitable variables. m=4 kgT1=10 °C=283 KQ=160 kJ=160×103 JC=910…

Q: ock A, with a mass 10 kg, rests on the incline. The coefficient of Fiction between the incline and…

A:

Q: 22) A 4.0-kg aluminum block is originally at 10°C. If 160 kJ of heat is added to the block, what is…

A: solution:- given data , mass of block m = 4kg, initial temperature of  block,  Ti  = 10°C, when we…

Q: 1. Find the tension in each cord in the figure below if the mass of the suspended object is 2.0 kg.…

A:

Q: A projectile is fired at an upward angle of 45.6° from the top of a 342m cliff with a speed of…

A:

Q: 10) An aluminum rod 17.400 cm long at 20°C is heated to 100°C. What is its new length? Aluminum has…

A:

Q: Calculate the rotational inertia of a meter stick, with mass 0.508 kg, about an axis perpendicular…

A: Given information: The mass of the metre stick (m) = 0.508 kg The mark at which the axis is located…

Q: At 1.6 °C, the length of the glass is 50 cm. After heated, the final length of the glass is 50.9 cm…

A: Given  initial temperature T1 =1.60C final temperature T2 = T2 initial length L0 =50 cm final Length…

Q: Calculate the partial pressure of oxygen at a barometric pressure of 500 mm Hg if oxygen is 20% of…

A: Write the given data. Pair=500 mmHg%O2=20%

Q: A sphere of mass 5.0 × 10-4 kg is suspended from a cord. A steady horizontal breeze pushes the…

A:

Q: A 0.52-mmmm-diameter hole is illuminated by light of wavelength 510 nmnm.     Part A What is the…

A: Diffraction is a phenomenon that represents the bending of the light when it encounters an obstacle.…

Q: Two blocks are attached by massless strings and accelerated to the right on a frictionless…

A:

Q: Suppose a horse leans against a wall as shown in the figure. The total of the horse and rider is 500…

A:

Q: A gas in a cylinder expands from a volume of 0.110 m3 to 0.320 m3. Heat flows into the gas just…

A:

Q: A 2.5-kg stone is released from rest and falls toward Earth. After 4.0 s, the magnitude of its…

A:

Q: gymnast is attempting to perform splits As she does this, you can assume that the force between her…

A:

Q: In the figure, block 1 of mass my slides from rest along a frictionless ramp from height h = 2.1 m…

A:

Q: In the figure, a crate of mass m = 99 kg is pushed at a constant speed up a frictionless ramp (0 =…

A:

Q: singly ionized helium (atomic number = 2) is initially in its second e. It ends up in the ground…

A: