Why do astronauts use radios while talking to one another in outer space?

Q: If the frequency of a wave of light is 6.8 x 108 Hz, what is it's wavelength. c = 3.0 x 108 m/s

A: In the given question, The frequency of the wave is (f) = 6.8×108 Hz Speed of light (c) = 3×108m/s…

Q: Calculate the value of force Pressure=10 N/m2 Area=2 m2

A: Given data : Pressure=p Area=A   To find : Force

Q: What is the magnitude force on a proton moving at 2.5 × 105 m/s in a magnetic field 0.5T If the…

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Q: A positive point charge, Q, is located at a distance h directly above the centre of a charged thin…

A: Write the expression for the surface charge density. Consider a rectangular differential element…

Q: X: Mass of crate: 100 kg μk: 0.25 Determine the maximum compression, x. k = 2 kN/m- A 10 m MAAN 45°…

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Q: Find the value of impulse Force=9.5 N Time=4 s

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Q: A particle acted upon by a balanced force system has no A velocity B displacement C force D none E…

A: If a particle is acted upon by a balanced force system then the net force acting on the particle is…

Q: So which one is the correct one.

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Q: One possible result of doing work on a system is the change in its Shape Speed System Composition

A: Introduction: The work is the energy transferred to or from an object via the application of force…

Q: The stress in an elastic material is: A Inversely proportional to the materials yield strength (B)…

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Q: The motion of particle is defined by the relation -t-lot² +8+ +12, where X and t are expressed in…

A: The equation of motion of the particle is, x=t4-10t2+8t+12........(1)

Q: Given data: Density Mass = 28 kg Determine the volume = 320 kg / m3

A: Given data :                         Mass    =    m                         Density    =    D…

Q: Suppose you use 57 kWh (kilowatt hours) of electricity at $0.35 per kWH, 91 kWh at $0.26 per kWh,…

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Q: View Policies Current Attempt in Progress An object carries a charge of -6.0 μC, while another…

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Q: A speed skater increases his speed from 10m/s to 12.5m/s over a period of 3s while coming out of a…

A: Given data, Initial Speed (u)=10 m/s Final velocity (v)=12.5 m/s Time period ∆t= 3 s Radius of the…

Q: A 12.5 kg box sits on a shelf that is 1.8 m high. If it is dropped, how fast will it be going just…

A: Given Mass of the box is m=12.5 kg Height of the shelf is h=1.8 m   We have to find the speed of the…

Q: gold foil. He unexpectedly with then current models of atomic In 1910 Rutherford performed a classic…

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Q: The drawing shows the electric potential as a function of distance along the x axis. Determine the…

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Q: Diffraction Using the small angle approximation, the locations of maxima is given by Ld Xm Y yL Xm d…

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Q: The drawing shows six point charges arranged in a rectangle. The value of q is 3.87 µC, and the…

A: The electric potential at a point in an electric field is the amount of work done in moving the unit…

Q: Write true if the statement is true. If not, write false and change the underlined word to make the…

A: Waves included in electromagnetic spectrum are : radio waves, microwaves, infrared, visible light,…

Q: The motion of particle is defined by the relation -t-lot² +8+ +12, where X and t are expressed in…

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Q: Determine the two possible angles so that the ball strikes the ground. VA = 30 m/s OA 1.2 m B 30 m

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Q: Calculate the electrical energy consumed in Joules if a toaster of 92 W is used 34 minutes

A: Given data :                     Time    =    t                   Power    =    P             To…

Q: Is (1) Explain why momentum is always conserved in a collision. kinetic energy always conserved?…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Applications of Derivatives You and a friend ride your bikes to a restaurant that you think is…

A: Draw the schematic diagram of the motion.

Q: A heart defibrillator is used to enable the heart to start beating if it has stopped. This is done…

A: Electrical energy transferred to the body is equal to, E = IVt  Where, E = energy I  = current V =…

Q: The drawing shows six point charges arranged in a rectangle. The value of q is 4.41 µC, and the…

A: Apply the Pythagoras theorem to determine the diagonal of the rectangle. Determine the distance…

Q: Absolute zero's temperature corresponds to the smallest volume possible. For an ideal gas the…

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Q: The linear speed of an object swinging in a circular path of radius 2 m with a frequency of 5 rev/s…

A: Frequency = 5 rev/s. Angular frequency or angular speed = 2π(5) = 10π rad/s.  Radius = 2m

Q: Review Multiple-Concept Example 4 to see the concepts that are pertinent here. In a television…

A: potential difference = 22000 V

Q: A 1400-kg car is brought from 25 m/s to 10 m/s over a time period of 5.0 seconds. Determine the…

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Q: * Q2 The motion of a particle is defined by the relation x-6-21-121² +3+3, where x and I are…

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Q: A sphere starts from rest at the top of a plane inclined at 30° and rolls without slipping. (a) What…

A: In pure rolling or rolling without slipping, static friction works and the work done by static…

Q: In the given figure below, a 3.0 -kg block is sliding down a 60 degrees- rough incline. The speed of…

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Q: A thin glass rod is bent into a semicircle of radius R. A charge +Q is uniformly distributed along…

A: Electric field due to positive and negative charges…

Q: A 100g bird is flying with velocity of +3m/s when suddenly it crashes into a giant billboard,…

A: Impulse : Change is momentum is impulse and product of mass into Velocity is momentum. Impulse =…

Q: Find potential energy stored in box

A: Given data : Mass=m Acceleration due to gravity=g Height=h   To find : Potential energy

Q: A 1500N block is in contact with a level plane whose coefficient of kinetic friction is 0.10 If the…

A: Given: The weight of the block is 1500 N. The coefficient of kinetic friction is 0.1. The applied…

Q: show that the centre of a rod of mass M and Length L Llies midway between its ende, gesuming the rod…

A: Mass of a body is randomly distributed over its volume. Therefore inertia in rotation depends on…

Q: What is the intensity of a sound hitting a phone microphone when it has a surface area of 4cm² and…

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Q: Find the force applied Work done=3J Displacement=1 m

A: Given data : Work done=W Displacement=d   Required : Force applied

Q: A uniform solid plastic sphere and a hollow metal ball having equal external radius R are released…

A: Since the mass of both spheres is different, the variables involving mass will not be the same.

Q: 1. Present a brief explanation of how, by creating an imbalance of positive and negative charges…

A: Current flows due to potential difference. when there is imbalance of positive and negative charges…

Q: Question 15 Within elastic limit, the shear stress is proportional to shear strain. What is the…

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Q: An object is located 3cm in front of a concave mirror whose radius of curvature is 12cm. Find (a)…

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Q: Faraday's law of magnetic induction states that the voltage induced by a current running through a…

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Q: 1. Consider a beam of electrons that moves from the electron gun towards the screen of a cathode ray…

A: Given data, Potential difference (V)= 15 kV magnetic Field (B)=250 μT

Q: a) Use source transformations to find i0 in the circuit shown below. 10 ΚΩ 3 ΚΩ 5 ΚΩ ay 50 V 15 kΩ…

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Q: For the circuit shown below, the current /= 2.0 A. Find the potential difference from B to A. B…

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