If the gravitational force between two identical mass objects increases by 4x, that means the distance between the objects     increased by 2x     decreased by 1/2     decreased by

Q: What is the length of a wave in nanometers with a frequency of 4.9 x 107 Hz?

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Q: A 600 N person runs up a flight of stairs in 10 seconds. How much power (in watts) was needed to run…

A: Given value--- weight = 600 N. time = 10 sec. vertical height = 11 m. We have to find--- power ?

Q: Find the net torque on the wheel in the figure below about the axle through O perpendicular to the…

A: a = 9 cm = 0.09 m b= 23 cm = 0.23 m F1 = 10 N F2 = 9 N F3 = 12 N

Q: The most rotor IR loss is dissipated in the external resistances the internal resistances the…

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Q: A glass ball of mass 0.01 kg sliding west at 20 m/s head-to-head collides with another 0.01 kg ball…

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Q: Find r(t). u(t). r(t) = (3-6)i +³ +2 2k . u(t)= t²i6j+t³k r(t) u(t)= = 2

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Q: 1 1 Two forces F₁ and F₂2 produce the same impulse on two different objects. The magnitude of the…

A: Given that--- F1 = 9 F2 . Time interval of F1 = 7 ms. Impulse of F1 and F2 are same ? We have to…

Q: A slide is placed in front of a convex (converging) lens with a focal length of F, to produce a…

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Q: A 1500 kg satellite is in orbit around the Moon at a distance of 3 Moon radii above the surface of…

A: Mass of the moon, m1=7.35×1022 kg Mass of the satellite, m2=1500 kg The radius of the Moon,…

Q: Using an atomic force balance scale, you put 2 neutrons and 1 proton on one side and you put a…

A: Determine the mass of 2 neutrons and 1 proton. m2n+1p=2mn+1mpm2n+1p=2(1.008665 amu)+1(1.0072765…

Q: A 600 g model rocket is on a cart that is rolling to the right at a speed of 2.5 m/s. The rocket…

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Q: 1) The three resistors having a resistance of R₁ 6.00, R₂-8.00, R3-16 and R410 , are- connected…

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Q: A pianist pays the A key on the piano, which should output a frequency of 440 Hz. An electric tuner…

A: output frequency (f) = 440 Hz output at A key produces a beat frequency of 3 Hz

Q: To what height will a 450 g soccer ball rise if it is kicked directly upward at 8 m/s? b) Neglecting…

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Q: A 15-g bullet is shot vertically into an 2-kg block. The block lifts upward 8.0 mm (see the figure).…

A: Given data :- mass of bullet m = 15 g = 0.015 kgmass of block M = 2 kgheight with which (m + M)…

Q: A box of mass 5 kg is placed 1.5 m at the end of a plank pivoted in the middle. Another box of mass…

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Q: Police use radar guns and the Doppler effect to catch speeders. The figure below illustrates a…

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Q: A simple pendulum consists of a small object of mass 3.0 kg hanging at the end of a 2.0-m-long light…

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Q: An asteroid weighing 2,356 kg reaches a velocity of .191 c. Find it's kinetic energy. Show the…

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Q: A 90kg bungee jumper jumps from a bridge 40m above the river. The bungee cord has an unstretched…

A: Given:-  The mass of the bungee jumper m = 90 kg ' The height of the bridge is h = 40 m above the…

Q: spin Out is a carnival ride consisting of a large open cylinder.  Riders stand inside with their…

A: Given radius of the cylinder r=3.5 m  mass of the body m=50 kg    speed v=5 m/s (a). Centripetal…

Q: Suppose you are playing hockey on a new-age ice surface for which there is no friction between the…

A: Here we can consider the ice and hockey puck as a system.

Q: The reflected light is different from the direct path light because of its interaction with the…

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Q: A skydiver weighing 262 lbf (including equipment) falls vertically downward from an altitude of 4000…

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Q: With the computed value of gravitational force in the previous question. What would be the…

A: The calculated gravitational force is 203 N.

Q: A satellite is 100 miles above the earth.  It has a mass of 100 kg.  If the mass of the satellite…

A: Given data:  Distance (r) = 100 miles Mass of satellite (m) = 100 kg New mass of the satellite (m')…

Q: What would happen if thermodynamic properties of the ideal gas system during the process of…

A: From first law of thermodynamics, we know that Q = Change in U + W Q — heat supplied or heat recieve…

Q: You are attending a county fair with your friend from your physics class. While walking around the…

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Q: In an amusement park ride called The Roundup, passengers stand inside a 18.0 m -diameter rotating…

A: Ring rotates one's every =3.9s Rider mass=54kg Diameter= 18m

Q: Suppose you swing a ball of mass m in a vertical circle on a string of length L. As you probably…

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Q: A +3.4 × 10−6 C test charge experiences forces from two other nearby charges: a 29-N force due east…

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Q: What is the wavelength of light necessary to first eject an electron from iron (with a work function…

A: Solution:- 1) In photoelectric effect, the relationship between work function(Φ), maximum kinetic…

Q: A particle has a mass of 9.2E-7 kg and is traveling at a speed of 208993 km/s (the speed of light is…

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Q: Consider a general equation for the ratio the relativistic length to the proper length. Find an…

A: To solve this problem we use the equation of length contraction.

Q: The current to an inductor with 25 windings and a cross sectional area of .025m^ 2 is increased such…

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Q: 11 (b) Describe its motion qualitatively. The particle starts from rest at the origin, starts moving…

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Q: A 1260 kg elevator accelerates upward at 1.20 m/s2 for 16.8 m starting from rest. How much work (in…

A: The give data we have: Mass of the elevator: 1260kg acceleration of the elevator: 1.20m/s2 Height…

Q: Which type of radiation can penetrate farther into matter before losing all of its energy ? a)…

A: There are several kinds of radiation with a varying range of penetration powers. Alpha rays are…

Q: Consider the energy levels of the Hydrogen atom, which are given by the equation: En 13.6 eV n² What…

A: Given that A photon is emitted when an electron jumps from energy level 2 to energy level 1   And…

Q: ing wi incline of angle = 36°. The lower end of the incline is distance D = 0.98 m from the end of…

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Q: Problem Statement: You decide you are done with physics class and you run away to join a traveling…

A: a)The above figure represents the physical situation of the given problem,Let v0 is the initial…

Q: PROBLEM: An F1 race car starts from rest on a race track. By the 100 m mark on the track, it had…

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Q: A particle is launched from point A with a horizontal speed u and subsequently passes through a…

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Q: Liliana can paddle her kayak 7 miles per hour in still water. It takes her as long to paddle 12…

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Q: Two objects, each of weight W, hang vertically by spring scales as shown in the figure. The pulleys…

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Q: A transformer is designed to increase the voltage from 150 V (input) to 600 V (output). If the…

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Q: Calculate the Fermi Energy of a metal (in eV) with an atomic weight of 88.1 g/mol, density of 5.1…

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Q: A 13.00 kg particle starts from the origin at time zero. Its velocity as a function of time is given…

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Q: Based on the kinetic energy of each object, which of the scenarios likely describes an object…

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Q: Suppose a motorcycle accelerates for t = 6 seconds at a constant rate of acceleration (a = 2.5…

A: Given data:  Time (t) = 6 s Acceleration (a) = 2.5 m/s2 Final velocity (v) = 34 m/s Required:…

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!