A 1500-W heater is connected to a 120-V line. How much heat energy does it produce in 2.0 hours? 1.5 kJ O 3.0 kJ 18 MJ O 11 MJ

Q: Initial Final object 1 object 2 combined object Object 1 has mass 17.7 kg and speed 8.9 m/s. Object…

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Q: A freight train rolls along a track with considerable momentum. If it rolls at the same speed but…

A: Given A train rolls on a track with some momentum. We have to find the momentum of the train when…

Q: -10 2 15 10 5 -15 -20 v = f. L x (cm) 10 f = frequency L = wavelength The graph above shows a…

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Q: A force of 40 Newtons is applied to an object at an angle of 37 degrees from the horizon, displacing…

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Q: The distance between the Earth and the Moon is 3.85 x108 m. During the Apollo 15 mission, astronaut…

A: Given:- Distance between the Earth and the Moon is d=3.85×108 m Required:- Time required for the…

Q: At the beginning of a 3.0-h plane trip, you are traveling due north at 192 km/h. At the end, you are…

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Q: 25. Jupiter has an acceleration due to gravity of about 25 m/s?. Given this, what would be the…

A: Given Acceleration due to gravity on the Jupiter= g = 25 m/s2 Length of simple pendulum= L = 1.5 m…

Q: Which of the following primarily moves in a three dimensional reference frame?   Question 8…

A: Which of the following primarily moves in a three dimensional reference frame?

Q: Given three vectors A = -2i + 3j + 4k, B = 3i + 1j – 3k and C = 3i -4j + 2k, do the following: a)…

A: The given three vectors are A=-2i+3j+4k,B=3i+1j–3k, and C=3i-4j+2k

Q: An electron passes through a point 3.47 cm from a long straight wire as it moves at 39.3% of the…

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Q: Polygon Method: Determine the magnitude and direction of the resultant for the given vectors. Use…

A: Solution: Let the scale of the drawing be 1kph=10units. Apply polygon method: Start from origin O…

Q: How fast is a dropped object moving after it falls for 4 s?

A: Given data:  Initial velocity (u) = 0 m/s Time (t) = 4 s  Required: Final velocity (v)

Q: On an amusement park ride, passengers are seated in a horizontal circle of radius 7.79 m. The ride…

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Q: 15- Kidney tubules regulate water balance. true O false

A: Your kedneys have three main purposes that influence the rest of the body. These three roles are 1.…

Q: project manager for a manufacturing company. One of the machine parts embly line is a thin, uniform…

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Q: 21.63 A small 13.0g plastic ball is tied to a very light 27.2cm string that is attached to the…

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Q: Suppose two masses are balanced on a seesaw. A 30.0 kg mass and a 5.00 kg mass. The 30.0 kilogram…

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Q: A beam of white light goes from air into the water droplet at an incidence angle of 36.2 degrees.…

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Q: (c) A uniform 2 kg solid disk of radius R 0.4 m is free to rotate on a frictionless horizontal axle…

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Q: The string is 50.00 cm long and weighs 14.00 g. Calculate the linear density of the string. ( in…

A: Given data:  Length (L) = 50.00 cm = 0.5000 m Mass (m) = 14.00 g = 0.0140 kg Required: The linear…

Q: A 2 ,500-kg truck moving at 10.00 m/s strikes a car waiting at a traffic light, hooking bumpers. The…

A: Given Ass of a truck = 2 500 kg truck moving at speed =10.00 m/s After collision the two continue to…

Q: a. How high will the ball rise than where it was hit? asnwer in m

A: We know height of the projectile         H=u2(sina)2 / (2*g)———-(1) where,H= maximum height…

Q: An electric field does 2.05 x 103 eV of work on a carbon nucleus of charge 9.61 x 10-19 C. Find the…

A: Given                E = 2.05 × 10 3 eV                   = 2.05 × 10 3 × 1.602× 10-19 J…

Q: hat are the basic concepts of vector quantity

A: Introduction: The vector quantity is that type of physical quantity which have both magnitudes as…

Q: Why does the hydrostatic force on one side of a vertical object submerged in water need to be…

A: In order to determine the hydrostatic force against a vertical plate or wall or dam in a fluid we…

Q: Use ray-tracing to locate the image formed by  concave mirror with focal length of 7.50 cm if the…

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Q: A parrot is flying at 4 m/s.  It accelerates at 0.2 m/s squared.  How long will it take to reach a…

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Q: A ball travels in uniform circular motion with a Period of 2 seconds. What is the tangential…

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Q: Determine the direction of the magnetic force acting on each part of the conductor, then indicate…

A: Given:The magetic poles and current loop positions along with direction of electronic…

Q: 1. Which of the following is necessarily true regarding the buoyant force exerted by air when an…

A: Answer (Q-1) - B. The buoyant force exerted by air is negligible compared to the weight of the…

Q: Find the spring constant k for a spring if a force of 19 N stretches the spring 0.46_m.

A: Given data:  Force (F) = 19 N Stretch in Spring (x) = 0.46 m Required: The spring constant (k)

Q: 107.5-kg rugby player is initially running at 8.5 m/s in the positive direction, but collides…

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Q: A chunk of metal with a mass of 250.5 g at 76.8°C is placed in 0.1 kg of water initially at a…

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Q: The voltage across an air-filled parallel-plate capacitor is measured to be V₁ =178.0 V. When a…

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Q: Algebraic Method For the given vectors: A = 50 km due east, B = 20 km due west, C = 30 km due west,…

A: Given Vector A = 50 km due East B = 20 km due West C = 30 km due West D = 25 km due East E = 60 km…

Q: A projectile of 1.0-kg mass approaches a stationary body of 5.0 kg at 10.0 m/s and, after colliding,…

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Q: 6- 41.7 W power is consumed by a 50- kg person runs up the stairs 10 m high in 2 min. for 10 m/s2…

A: power = P=  41.7 w Time = t = 2 min = 120 sec mass = m = 50 kg height = h = 10m

Q: 4. Find the magnitude and direction of the missing vector. A = 12m, E B = 28m, 50° W of N C = ? R =…

A: We have three vectors given by A→=12 m (due East), B→=28 m (50oW of N) and C→ and the resultant of…

Q: A certain spacecraft measures 60 m in length when it is at rest. The spacecraft then travels at…

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Q: stone is dropped into a well. the splash is heard 1.24 s later. what is the depth of the well?

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Q: The distance between the Earth and the Moon is 3.85 x10³ m. During the Apollo 15 mission, astronaut…

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Q: 3. A man leaves his front door, walks 1000 ft east, 2000 ft north, and then takes a penny from his…

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Q: For an FM station broadcasting at a frequency of 104.3 MHz (1 MHz = 1 x 106 Hz), the capacitance of…

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Q: A flywheel with a radius of 0.500 m starts from rest and accelerates with a constant angular…

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Q: For how long should a force of 52 N be applied to change the momentum of an object by 9 kg.m/s?

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Q: A machine raises a load of 720 N through a height of 12 m in 5 sec. Calculate: 1. Energy spent by…

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Q: if the source of Earth’s magnetic field was a bar magnet, then the best diagram to show this fields…

A: Earth has north pole upside and south pole downside. And magnetic field lines comes out from north…

Q: 24. A mass-spring system is set up so that the mass oscillates in the horizontal. The mass is…

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Q: (SOLUTION IS REQUIRED) 8.00 watts of heat is conducted through a 1.00 sq. m of a 10.0-cm thick…

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Q: CO2 from your Light Bulb 0.0/10.0 puntos (calificado) A 75 W light bulb is used for 12 hours a day.…

A: in this question  we use simple energy consuming by bulb and kerosene lamp.

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.