A nerve impulse travels along a myelinated neuron at 66.5 m/s. a. What is this speed in mi/h? b. What is this speed in cm/ms?

Q: A large TV works properly under the voltage of 110 V with power P = 1940 W. (a)  Calculate the…

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Q: A small ball of mass 1.2 kg is attached to one end of a 0.990-m-long massless rod, and the other end…

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Q: Find force Mass=0.4 kg Acceleration=2 m/s2

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

Q: 1. Starting from rest, a 20-kg block slides down from the top of a frictionless inclined plane of…

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

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Q: Calculate the gravitational potential energy of a light that a mass of 4.07 kg and is 5.02 m above…

A: Given data :                 Acceleration due to gravity      =     g                           Mass…

Q: Consider a point on a bicycle wheel as the wheel makes exactly four complete revolutions about a…

A: Given : A point on a bicycle wheel completes exactly four revolutions around a fixed axis. To find :…

Q: A 80.0-kg skier starts down a 100-m high, 15.0° slope on regular skis. The coefficients of friction…

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Q: Find the work done against the force of gravity in moving a rocket weighing 8 tons to a height 200…

A: Solution:-

Q: An electron moves in a uniform circular motion under the action of an external magnetic field…

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Q: The apparent weight of passengers at the rim of a rotating space station is 73.1% of their actual…

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Q: Calculate the density of solid from the following data: (a) Mass of solid = 72 g (b) Initial volume…

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Q: Density = 1600 kg/m3 Mass = 42.05 kg Calculate the volume ?

A: Given data:  Density (ρ) = 1600 kg/m3 Mass (m) = 42.05 kg Required: Volume (V)

Q: The effect of varying radius to the magnitude of the velocity Trial 1 2 3 r (m) 0.502 0.591 0.655…

A: Two pieces of data are provided. In the first set, we must examine how changing the radius affects…

Q: A truck is traveling south at a speed of 70 km/h toward an intersection. A car is traveling east…

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Q: 9. Satisfy the following calculations. Express your answer in scientific notation: 0.0095+ (8.5 x…

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Q: Find the kinetic energy of a ball is 2.04 kg mass, moving at a velocity of 6 m/s

A: Introduction :  In this question we are provided with value of velocity and mass . With these data…

Q: 1. A magnet of mass 4.44 kg is suspended from the ceiling by a cord as shown. A large magnet is…

A: (1) Given, m = 4.44 kg F = 65.3 N θ = ? From the figure 1, we have, Tcosθ = mg ...........(1) Tsinθ…

Q: A disk, initially rotating at 109 rad/s, is slowed down with a constant angular acceleration of…

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Q: A 4.0 kg block is on the verge of sliding down an inclined plane with a θ-degree angle of incline.…

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Q: The angular position of a point on a rotating wheel is given by 0 = 8.79 +1.71t² + 1.26t³, where 0…

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Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 4.80 g coins…

A: Visualize the problem:

Q: Calculate the shortest wavelength of light emitted by the hydrogen atom.

A: Wavelength

Q: A wheel starts from rest and has an angular acceleration that is given by a (t) = 6 rad/s4)t2 The…

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Q: If the focal length of a concave mirror is 12 cm, find the radius of the hollow glass sphere from…

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Q: The total momentum before a collision is _________ the total momentum after a collision. a. Equal to…

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Q: Cables made of fibre optics and coaxial are not the same

A: in this question  we compare optical fibre to coaxial cables.

Q: 20. Carry out the operation. Express the answer by rounding it off to the correct significant…

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Q: You have been given the points below (they are in the x-y plane). Figure the corresponding polar…

A: in this question  we draw a figure i do not have a graph paper so i did on plane paper.

Q: At what temperature would the rms speed of hydrogen atoms equal the following speeds? (Note: The…

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Q: A solid disk of uniform density and mass M = 0.950 kg with radius R = 0.250 m is suspended…

A: in this question  we use conservation  of energy.

Q: Which of the following results to the acceleration?   External Net Force Internal Net Force…

A: Net external force is responsible for acceleration .          Acceleration (a) = Fext/m  Net…

Q: Calculate the density of solid from the following data:

A: Given data;  Calculate the density ? Where,  Mass of solid= 72 g Initial voulme of water=24 ml Final…

Q: Two ropes are supporting a slab of wood. If another weight is put on the slab in between the two…

A: Correct option is (d) The tension on one of the ropes is half of the object 's weight.

Q: How much energy in Joules is required to melt 415g of ice? The latent heat of fusion of ice is: Lf =…

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Q: A projectile is fired at an upward angle of 51.9 degrees from the top of a 235m cliff with a speed…

A: Given: The height of the cliff is 235 m. The angle of the projection is 51.9o. The initial speed of…

Q: The wavelength and equivalent width of agiven Pectral line ене 493 nm and 0.052nm. @ Calculate the…

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Q: A softball having a mass of 0.25kg is pitched at 82.8km/h. By the time it reaches the plate, it may…

A: In the given question, Mass of the softball (m) = 0.25kg Initial velocity of softball (u) = 82.8km/h…

Q: Mass A moves at 20 kph in the direction N 400 E while mass B moves at 30 kph in the direction of S…

A: Given:- VA = 20 kph (N 40° E) = (20sin(40) i^ + 20cos(40) j^) kph  VB = 30 kph (S 30° W) =…

Q: Find the kinetic energy of a ball is 2.04 kg mass, moving at a velocity of 6 m/s

A: mass of ball (m) = 2.04 kg initial velocity (u) = 6 m/s

Q: 4. A bag originally 60 kg of flour is lifted through a vertical distance of 9 m. While it is being…

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Q: In the figure here, a ball is thrown up onto a roof, landing 4.70 s later at height h=22.0 m above…

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Q: It is crazy hot outside, so you decide to make a water slide by running your garden hose over a tarp…

A: a) At the top of the hill The potential energy of the spring will convert to the kinetic energy of…

Q: A sanding disk with rotational inertia 5.2 x 103 kg-m² is attached to an electric drill whose motor…

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Q: How to calculate the electric field due to a system of point charges using Coulombs Law and the…

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Q: A 1.50-kg ball, moving to the right at a velocity of +4.49 m/s on a frictionless table, collides…

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Q: galvanometer? I. The direction of the galvanometer direction depends on the speed of the magnet. II.…

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Q: Find the pressure Force=0.03 N Area=2 m2

A: Given data:  Force (F) = 0.03 N Area (A) = 2 m2 Required: The pressure (P)

Q: A magnifier convex lens with a focal length of 20 cm is used to view a 2 cm tall object. Determine…

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Q: 17. According to the Len’s Law, the direction of the magnetic field induced by a current always have…

A: To discuss Lenz law.