How much electric energy is delivered to a 60 W lightbulb if the bulb is left on for 2.5 hours?

Q: A woman stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the…

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Q: A wire 1.5 m long has a cross-sectional area of 2.4 mm2. It is hung vertically and stretches 0.32 mm…

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Q: 1. Two bullets having velocities 550 m/s and 200 m/s moves towards to a block that having mass 12kg.…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Emily is flying off to Paris. Unfortunately, the wheels of her luggage fell off. So, she ties a rope…

A: Given data in question Angle ( θ ) = 30°  Mass of luggage ( m ) = 25 kg  Applied force ( F ) = 65 N…

Q: The interference pattern created from a diffraction grating with 10 slits is most similar to that of…

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Q: Q2. In Figure Q2, ropes AB and AC are tied at point A which is 5 m from the base of the tree, O. The…

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Q: What is fusion? How does it happen inside a star?

A: Nuclear fusion is the process by which two light atomic nuclei combine to form a single heavier one…

Q: speed of light is slower in glass than in water) Air glass Air water

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Q: In the figure, two blocks are connected over a pulley. The mass of block A is 5.20 kg and the…

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Q: A thermodynamic process characterized by a system that does zero work on it surrounding is called an…

A: Please note : As per answering guidelines I can answer the first question only. Since, this is not a…

Q: A coulomb is the same as; O Ampere.second O Ampere.second^2 O Ampere/second O Ampere/second^2

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Q: A 5μF capacitor with air between the metal plates is connected to a 12V battery. The battery is then…

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Q: In a compound microscope, it consists of an objective lens with a focal length of 5 mm and an…

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Q: 39. For any irreversible process, the total entropy change  a)is a negative value b)is greater than…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Q5) A person with severe myopia has a far point (a). (20cm) What is the strength of the lenses The…

A: The correct option is (B) (a) -5.00D (b) -5.00D

Q: 6. [#364a] Ball on a string (part 1) Here, I am swinging a ball around in a horizontal circle with a…

A: Only acceleration due to gravity is acting upon the ball in the vertical direction. Hence:- av=…

Q: Assuming negligible air resistance, which of the following statements are true? Select one or more:…

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Q: Find the final velocity of car U=2 m/s t=22 s a=2.44 m/s2

A: Given data: Initial velocity (u) = 2 m/s Time (t) = 22 s Acceleration (a) = 2.44 m/s2 Required:…

Q: Bulb A, B, C are 60 W lightbulbs. Bulb D is 100 W lightbulb. Which light bulb will be the dimmest? A…

A: Power of the bulb is given as P =V2RR =V2PThus, R∝1PSo,the resistance of bulbs A,B and C are and…

Q: By using Pascal's Law, oil Pressed in pipe On left ri = 0.05 m in closed loop and on right r2 = 0.15…

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Q: 2. A body moves along a horizontal line according to s = t3 - 9t² + 24t. Find the total distance…

A: Displacement, s = t³ - 9t² + 24t Distance traveled in the first 5 seconds of the motion = ?

Q: 28. The thermodynamic processes in the figure are* P4 PA P C OA-Isochoric, B- Isobaric, C-…

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Q: 4. A simple pendulum makes 100 complete oscillations in 50 s at a location where g=9.80 m/s². Find…

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Q: 17) On a cold day, a piece of metal feels much colder to the touch than a piece of wood. This is due…

A: Thermal conductivity of metal is more than thermal conductivity of wood  . therefore we feel much…

Q: A 60.0-kg pilot went up the stairs entering the cockpit which is 2-m high from the ground. Determine…

A: mass of pilot (m) = 60 kg time taken to climb stairs = 3 minutes height of cockpit = 2 m horizontal…

Q: Find the time Speed=66.23 km/hr Distance 22 km

A: Solution: speed = 66.23 km/hr distance = 22 km

Q: 34) When water at 0°C freezes, the entropy of the water A) increases. B) remains constant. C)…

A: Solution:

Q: 14) If you wanted to know how much the temperature of a particular piece of material would rise when…

A: Write the expression for the heat energy. Here, m is the mass, c is the specific heat, and ΔT is…

Q: Pure helium gas is contained in a leak-proof cylinder containing a movable piston. The initial…

A: Given: Initial volume V0=15 L, Initial pressure P0=2 atm, Initial temperature T0=310 K, Final volume…

Q: A car starts 200 m west of the town square and moves with a constant velocity of 15 m/s toward the…

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Q: A car moving at 11.5 m/s crashes into a tree and stops in 0.32 A. Calculate the magnitude of force,…

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Q: Find the force Pressue=0.09 N/mm2 Area=2 mm2

A: Given : Pressure (P) = 0.09 N/mm2 Area (A) = 2 mm2

Q: Alpha particles (mass = 6.7 × 10^-27 kg, q = +2e) are accelerated from rest through a potential…

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Q: Khufra works at a spring factory and he was assigned to test a certain spring, whose constant is 50…

A: If F is the net force on the Block = Push force - ( Compression force of spring + Frictional force…

Q: What is “dark energy”? What is “dark matter”? Why do some scientists think it is everywhere, while…

A: We live in a universe where a lot of space seems to have nothing but a vacuum. A majority portion of…

Q: Three point charges are located at the corners of an equilateral triangle as shown in the figure.…

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Q: 1000 92 -resistance. Its time constant is 1 s, wh is the capacitance of the capacitor? OA) 10 F OB)…

A: Correct option (E) 1 mF Resistance = 1000 ohm Time constant = 1 s Capacitance = ? Formula is given…

Q: 13) An airplane travels 100 mi to the north and then 200 mi to the east. The displacement of the…

A: Question 13 solution

Q: Newton's Laws of Motion 6. A skier wishes to build a rope tow to pull herself up a ski hill that is…

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Q: Find the Current Voltage-44 Volt Resistance-5.5 Ohm

A: Given data:  Voltage (V) = 44 V Resistance (R) = 5.5 Ω Required: Current (I)

Q: A car traveling at 20 m/s when the driver sees a child standing in the road. He takes 0.80 s to…

A: SOlution: Given that speed u = 20 m/s time t = 0.8 s acceleration = -7m/s2

Q: A 4-volt battery supplies a light bulb with 7.2 J of energy each second. Find the current that flows…

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Q: Find the Momentum Mass=33 kg Velocity=2.1 m/s

A: Given data : Mass=m Velocity=V   Required : Momentum

Q: 30) An ideal gas is compressed isobarically to one-third of its initial volume. The resulting…

A: In the given question, An ideal gas is compressed isobarically which means at constant pressure to…

Q: Find the force Pressue=0.09 N/mm2 Area 2 mm2

A: Given data:  Pressure (P) = 0.09 N/mm2 Area (A) = 2 mm2  Required: Force (F)

Q: Find the value of force Mass=2 kg Acceleration=2.112 m/s2

A: Given data : Mass=m Acceleration=a   Required : Force

Q: Q3. A race car starts from rest and accelerates at a = 5 + 2t m/s² for 10 seconds. The brakes are…

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Q: Another particle with negative charge q < 0 is placed at the center of the square: (see image) 1.…

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Q: The velocity vs time graph is shown for a particle moving among the x-axis. Its inital position is…

A: Given Position of particle at t = 0 xo = 2.0 m Graph between velocity Vs time is shown in the figure…

Q: You throw a ball straight up with a speed v from the top of a cliff, and it lands on the base of the…

A: 11)  Let the height of the cliff be h and the height up to which the ball reaches be s Initial…