A crate of mass 85 kg is pushed along a floor with a force of 20 N for a distance of 8 m. Calculate the work done ?

Q: A 1,200 watt motor bike can move at a maximum speed of 30 m/s. How much force does the motor exert?

A: Given data:  Power (P) = 1,200 W Maximum speed (v) = 30 m/s Required: Force (F)

Q: PROBLEM SOLVING What is the displacement of a car that experiences uniform acceleration from 5 m/s…

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Q: The diagram shows a beam of ions of charge, 61 x 10-19 c that are traveling at an unknown speed. The…

A: Given, Mass=5.5×10^5kg Charge=1.61×10^-19c Magnetic field=2.20T Radius=9cm

Q: 4. A car moving at 20.0 m/s crashes into a tree. Find the magnitude of the average force acting on a…

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Q: The half-life of 222Rn is 3.82 days. (a) Convert the half-life to seconds. (b) Calculate the decay…

A: A radioisotope's half-life is the amount of time it takes for half of its population of atoms to…

Q: A train is 250 m long runs at 55 m/s. Find the time ?

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Q: Q3) The acceleration of a particle traveling along a straight line is a = (8 - 2s) m/s, where s is…

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Q: The earth's magnetic field, with a magnetic dipole moment of 8.0×1022Am2, is generated by currents…

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Q: A drug tagged with 9943Tc (half-life = 6.05 h) is prepared for a patient. If the original activity…

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Q: A generator uses 400 loops of area 0.0550 m^2, rotating in a 0.0639 T magnetic field. What angular…

A: Given, Number of loops (N) =400 Area of loop (A)= 0.0550 m2 Magnetic field (B)= 0.0639 T Maximum emf…

Q: Is true or false that One electron volt (eV) is equivalent to the product of 1 volt and 1 elementary…

A: Given that One electron Volt Using definition of one electron Volt

Q: in your words why are electromagnets temporary magnets?

A: An electromagnet is called a temporary magnet because it produces a magnetic field only when the…

Q: Calculate the hydrostatic difference in blood pressure between the brain and the foot in a person of…

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Q: 1. A coil of wire is situated in a 0.45 T uniform magnetic field. The area of the coil is 4.0 m2.…

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Q: Two train whistles, A and B, each have a frequency of 519 Hz. A is stationary and B is moving toward…

A: Answer:-  Given  Frequency of source (fs) = 519 Hz  Velocity of sound in air (Vsound) = 350 m/s…

Q: Compute the route of a snail taking 1.9 m displacement at 18 degrees south east

A: The vector diagram of the snail's route is shown below. Here, d is the displacement vector.

Q: Camera flashes charge a capacitor to high voltage by switching the current through an inductor on…

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Q: A uniform beam of length L and mass m shown in the figure below is inclined at an angle 0 to the…

A: The force of friction that attempts to oppose the movement of a stationary object is known as static…

Q: Electric room heaters use a concave mirror to reflect infrared (IR) radiation from hot coils. Note…

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Q: The mass of a solid hemisphere is measured only once with a digital balance, whose resolution is 1…

A: Density is defined as the ratio of mass and volume of the object.  ρ = m / V

Q: The current in a 20.0-mH inductor changes with time as i = 3.00t2 – 8.00t, where i is in amperes and…

A: Given value--- inductance = 20 mH. i  = 3 t2 - 8 t. We have to find--- (a) Find the magnitude of…

Q: What is the pulley purpose in the acceleration experiment?

A: A light string is attached to the cart and passes over a pulley at the end of the track and a second…

Q: In the figure, a 5.03 g bullet is fired into a 0.539 kg block attached to the end of a 0.878 m…

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Q: A single, air-filled, capacitor is connected to a battery. The capacitor is fully charged and…

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Q: (a) Explain the steps to obtain the image formed by a convex mirror. (b) Describe the properties of…

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Q: Two boxes ma=11.8 kg and mb are connected by a light string that passes over a frictionless pulley…

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Q: If the charge Q1 is negativo and is moving in the direction shown by the red arrow, and there is a…

A: It's given that magnetic field  is along the +y axis and velocity of charge is making an angle with…

Q: A 5.0 kg object is spun around in a circle of radius 0.85 m with a frequency of 10 Hz. What is the…

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Q: What is the relationship of the cross-sectional area of an elongated object to it's resistance. How…

A: Consider A be the cross-sectional area, L be the length of the object, and ρ be the resistivity of…

Q: A daredevil is shot out of a cannon at 45.0° to the horizontal with an initial speed of 15.0 m/s. A…

A: Write the horizontal and vertical components of velocity.

Q: 1 What is the current in a 160V circuit if the resistance is 20? 2 What voltage is required to move…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: vo coplanar and concentric circular loops of wire carry curre et r, = 12.0 cm and r, = 8.50 cm.…

A: GivenI1=6.1 AI2=2.1 Ar1=12 cmr2=8.5 cm

Q: A model of a horse is placed 36.0 cm away from a mirror that has a focal length of -16.0 cm. The…

A: Given Object distance u = -36 cm Focal length f = -16 cm Height of object = h1 = 8 cm

Q: 13. Which of the below objects have the highest momentum? a. A 5.0kg object moving at 5 m/s b. A 2.5…

A: momentum = mass *speed find highest momentum of given

Q: * Calculate the electron velocity in the second orbit of the hydrogen atom? * An electron placed in…

A: Potential=10v

Q: The weight of a body is 19.6 newtons. A string is tied to the body and the latter is then raised…

A: Given value--- weight of body = 6 N. acceleration = 3 m/s2.  We have to find--- Tension in the…

Q: What are the two smallest thicknesses of a thin film of material with index of refraction 1.25 that…

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Q: The half-life of beryllium-7 is about 53.3 days. (a) Determine the decay constant for beryllium-7.…

A: Given value--- Half life time = 53.3 days. We have to find--- (a) Determine the decay constant…

Q: From the window of a building, a ball is tossed from a height y0 above the ground with an initial…

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Q: 2. Juanito, a Grade 9 student, lifts a 5 kg book from the floor into a cabinet that is 3.2 m high…

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Q: A block slides down a smooth inclined plane with an acceleration of 4.9 m/s? .If the block weighs 49…

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Q: A coil with 15 loops sits in a magnetic field T/ The magnetic moment of the loop is Am^2, what is…

A: Given data :- no. of loops/turns N = 15B→ = 0.2  i^ - 0.1 j^ -0.2  k^  Tm→  =  i A→= 0.9 k^  A-m2

Q: A tank of gasoline (n = 1.40) is open to the air (n = 1.00). A thin film of liquid floats on the…

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Q: Two capacitors, 4.7 microF and 5.6 microF, are conneted in parallel. If a 9 volt batte is to be…

A: (C) Write the given values with the suitable variables. C1=4.7 μFC2=5.6 μFV=9 V Here, V is the…

Q: A loop of wire in the shape of a rectangle of width w and length L and a long, straight wire…

A: {note: you post multi parts question , i am answering first three subparts }

Q: What is the direction of the magnetic moment of the loop when the current is flowing clockwise? b)…

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Q: A 21-turn circular coil of radius 4.40 cm and resistance 1.00 n is placed in a magnetic field…

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Q: The following data gives stopping potential Vo versus wavelength for photoelectrons produced from a…

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Q: An object 1.6 cm high is held 3.15 cm from a person’s cornea, and its reflected image is measured to…

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Q: In a 260-turn automobile alternator, the magnetic flux in each turn is g = 2.50 x 10* cos wt, where…

A: Given value--- No of turn = 260 . magnetic flux = 2.5 × 10-4 cos (Omega t ) angular speed of engine…