A roller starts from rest at the highest point of the truck 30m above the ground. What speed will it have at ground level of the effect of friction is neglected?

Q: A string has a mass of 7.8g and a length of 1.55m. A second string has a mass of 4.4g and a length…

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Q: What are capacitors used fo

A: A capacitor is a device for storing electrical energy that consists of two insulated conductors in…

Q: An electron is trapped in a one-dimensional infinite potential well that is 430 pm wide; the…

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Q: Two cars leave from the same place at the same time and travel in opposite direction. One car…

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Q: A person is attracted towards the center of the earth by a 500-N gravitational force. The force that…

A: person is attracted towards the center of the earth by the gravitational force, FG=500 N

Q: The diagram below shows two parallel wires with the top wire carrying a steady current of 2.00 A and…

A: Magnetic field due to a current carrying wire at a distance d is B=μoi2πd

Q: A student determine to test the law of gravity for himself walks off a skyscraper 300m high,…

A: Write the given values with the suitable variables. h=300 mu=0 m/st1=5 s Here, h is the height, u is…

Q: Common Properties of Light Consider a slab made of three different materials X, Y, and Z. Light in…

A: To identify : the correct relationship among the speeds of light in each material

Q: Light of two different wavelengths is passed through the same double slit set up. The interference…

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Q: a) Calculate the magnitude of the electric field at a point P located 60 cm from the origin above…

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Q: Which requires more energy and by how much? Taking a 1000kg car from 0 mph (0m/s) to 30 mph…

A: Given:A 1000 kg car from 0 mph to 30 mph (13.4 m/s)A 1000 kg car from 60 mph (26.8 m/s)  to 70 mph…

Q: A pitcher's forearm moves up and down in simple harmonic motion with an amplitude of 8.77 cm and a…

A: Given Amplitude of the simple harmonic motion is A=8.77 cm=8.77×10-2 m Frequency of motion is given…

Q: Starting from the same point, Reden starts walking eastward at 60 cm/s while Neil starts running…

A: Given:Reden start walking eastward at 60 cm/sNeil starts running toward south at 80 cm/sTo Find:How…

Q: A crate of mass 60 kg is pushed along a floor with a force of 30 N for a distance of 14 m.Calculate…

A: Given data :                           Force    =    F                      Distance    =    d…

Q: odrofac What charging RC circuit has a time constant of 1. A. 1 B. 2 D. 4 E. 5

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Q: A flat, circular coil of 120 turns has a radius of 18 cm and carries a current of 3.0 A. What is the…

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Q: 3. For both circuits: Determine the potential difference on and the current through each resistor.…

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Q: A person is reading a newspaper held 40cm from their eyes. The print is 1.5mm high. Assuming that…

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Q: A gas storage tank is designed to hold a fixed volume and quantity of gas at 2.68 atm and 28°C. To…

A: At constant volume P1/P2 = T1 / T2 Where P1 and T1 are initial pressure and temperature…

Q: What is the specific gravity of a solid sphere that has a radius of 0.6 in and a mass of 1.34…

A: Radius = 0.6 inch  Mass = 1.34 ounce

Q: 5.0 m 3.0 m

A: Given data as per question  sign weight = 400N beam weight = 600N

Q: What is the separation distance between two 1000-kg cars that exerts a gravitational force of 1.07 ×…

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Q: 7. The motion of the particle is given by a = 10t – t2 , a is in m/s² and tis in sec. How far will…

A: Given data: The equation of acceleration is given by, a=10t-t2

Q: The work done in pushing a TV set a distance of 2 m with an average force of 55 N is _________ . In…

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Q: Astronauts in the International Space Station are orbiting around the Earth approximately 250 miles…

A: ‘Weightlessness’ is where you don’t experience the force of contact, for example when on a…

Q: 1a. A proton moves with a speed of 8.0 x 10^6 m/s along the +x-axis. It enters a region where there…

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Q: Magnetic Induction The Earth's magnetic field is 2.0 a 10-5 T, inclined downwards at an angle of 20°…

A: Magnetic flux :-  IT is the integration of dot product of magnetic field vector and area vector.

Q: Q14: An arrow is shot straight up in the air at an initial speed of 15.0 m/s. After how much time is…

A: Given  Initial speed of arrow 15 m/s in upward direction  ∴  Vi = 15 m/s  Final speed of arrow…

Q: A baseball diamond has the shape of a square with sides 90 ft long. A player 60 ft from second base…

A: The total distance of the home plate from the position of the player is found by Appling Pythagoras…

Q: 4. Consider the circuit shown in the figure. The current through the 6.00 ohm- resistor is 4.00 A,…

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Q: draw the ray diagram of the following (concave mirror): a. object is between f and the vertex b.…

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Q: Find the momentum A car that has a mass of 8020 kg and a velocity of 8 m/s ?

A: Momentum, p = mv = 8020 × 8 = 64160 kg.m/s

Q: A solid insulating sphere of radius a = 5.1 cm is fixed at the origin of a co-ordinate system as…

A: EXP=Qinc4πε0x2=43πa3ρ4πε0x2=9×109×4π×5.1×10-23-224×10-63×15.3×10-22=−47852.7393 N/C

Q: A bike starting from rest acquires a speed of 40 m/s in 20 seconds. Then, the bike travels with this…

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Q: a cheetah jumps straight up in the air to catch a bird (with a mass of 100g )at the peak of its…

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Q: Two identical waves, each of wavelength = 1 m, produce a standing wave on a 2-m thin rope. If the…

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Q: 10. A stone of mass 2kg is attached to a string of length Im. the string can withstand maximum…

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Q: What could be a practical application of an RC circuit?

A: RC circuit is a resistance capacitance circuit. it may be driven by current and voltage source.

Q: Find the momentum A car that has a mass of 8020 kg and a velocity of 8 m/s ?

A: Given data :                           Mass    =   m                        Velocity    =    V…

Q: A rickshaw puller pulls the rickshaw by applying a force of 130 N. If the rickaw moves with constant…

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Q: A sodium surface is illuminated with 384-nm light. (a) Determine the energy of each photon in…

A: Planks constant = 6.64 × 10^-34 J-s =h Speed of light = 3 × 10⁸m/ s Wavelength = lambda = 384 nm =…

Q: 1. What is Resonance? 2.  At resonance, is XC a maximum or minimum? Explain. 3. Why is it that Z =…

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Q: What law of motion is being applied when an object is being push with constant force? O A. none of…

A: Motion There is no motion if you are standing under the tree. Your velocity, v, is equal to zero.…

Q: Water is being poured at the rate of 27 m' /min into an inverted conical tank that is 12-meter deep…

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Q: 1. A stone is thrown vertically upward from the ground with an initial velocity of 128 ft/sec. How…

A: we have y=ut-12gt2

Q: garbage worker tears the arm off a droid. he throws it down a garbage chute and it lands in trash…

A: Buyoant force = weight of liquid displaced

Q: 3 4 6 V 6Ω 8 7 6 What is the voltage across the 4 W branch? Volts (Do not include units) What is the…

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Q: A compound light microscope with an objective focal length of 5.00 mm has a barrel length that is 10…

A: one question for one post. please post a remaining questions in a new post.

Q: 1. A spring with a force constant of 600 N/m is used in a scale for weighing fish. What is the mass…

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Q: A bucket full of water hangs from one end of a string that passes over a light pulley. The other end…

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