:A bullet ( (2 cm long is fired at 420 m/s and passes straight through a 10 cm thick wooden-board, penetrate ( (at 280 m/s. (a) What is the average acceleration of the bullet through the board? (b) What is the total time that the bullet is in contact with the board? (c) What minimum thickness could the board have if it was supposed the bullet?

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A: Given, 6 equal charge is placed at the vertices of a regular hexagon of side R. And distance between...

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Q: Question #2: For the figure below, determine the moment of the 255 lb force about a line which passe...

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Q: Weightless bar AC rests against a smooth horizontal surface at C and is supported at end A with a ba...

A: Given: The force F→=1200 lb. a=700 in. b=100 in. Position of A=0,0,2a Position of B=b,2b,a Position...

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Q: 1. Determine the moment of the 6 kip force about point A. 2. Determine the moment of the 4 kip force...

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Q: (aq) Each of the reactant solutions had a density of 1.04 g mL and an initial temperature of 22.6 °C...

A: Given, Amount of HCl = 50 mL Amount of NaOH = 75 mL Reactant density = 1.04 gmL Temperature = 26.3°C...

Q: If a quasar is 1,240 times more luminous than an entire galaxy, what is the absolute magnitude of su...

A: Hey dear I have solved the question . Have a look

Q: #2. You are walking down the street in a city where the sound of traffic is at 71.9 dB. Your friend ...

A: The sound intensity in decibel is given by dB=10log10II0I0=10-12 W/m2 Hence, the intensity is given ...

Q: The electric field created by a distribution of charges is given by: E (x, y, 2) = 2yx i+ 3zy j-Sxz ...

A: The given electric field has the form E=2yx3i^+3zy2j^-5xzk^ V/m Circulation density of any vector fi...

Q: What is the change in entropy of 0.040 moles of ideal gas with y = 7/5 when it is decompressed isoth...

A: Given Change in entropy (n) = 0.040 moles Ideal gas γ                = 7/5 Pressure P1              ...

Q: Two vectors d and 6 have magnitudes 2 and 5 respectively. Also the angle between d and b is Find a-6...

A: hey dear this question is from topic dot product of vectors .I solved it . Have a look

Q: A concrete block is pulled 177 m across a frictionless surface by means of a rope. The tension in th...

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Q: a) For one mole of an ideal gas, external pressure (Pexternal) = pressure (P) = 200x103 Pa. The temp...

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Q: A parallel beam of sodium light strikes a film of oil floating on water. When viewed at an angle 30°...

A: To Find: Thickness of the film (t) Given Data: i=30°μ=1.46n=8λ=5890 Ao=5890×10-8 cm

Q: A 5.00 x 102-kg communications satellite is to be placed into a circular geosynchronous orbit around...

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Q: Calculate the current across the 4 ohm resistor. A 10V 1 ohm 3 ohm 4 ohm 2 ohm B

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Q: Solve the following problems number 1 and 2  about circular motion. Show your encoded solution. A j...

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Q: Which of the following plots represent/s a motion with constant acceleration (positive value)? * a -...

A: Given to find which of the  plots represents positive constant acceleration.   

Q: 2. John is standing outside the Physics laboratory 7 m from the wall. Peter, by a window 5 m above t...

A: Since more than one question is provided here, the solution for the first question is provided here....

Q: A wire with uniform linear charge density is bent as shown in the figure. Determine the electric pot...

A: Given: The linear charge density of the wire is λ. To determine: The electric potential at point O. ...

Q: If a quasar is 1,360 times more luminous than an entire galaxy, what is the absolute magnitude of su...

A: The absolute magnitude of the Milky Way galaxy is mA = - 21 FB/FA = 1360  Let  mB = absolute magnitu...

Q: 2. Illustrate on the equations of gravitational potential energy and elastic potential energy as the...

A: Gravitational potential energy is given by P = Gm1m2/r2 Where G is constant , m1 and m2 are the mass...

Q: #2. You are walking down the street in a city where the sound of traffic is at 71.9 dB. Your friend ...

A: Sound intensities correspond to the power delivered by sound waves per unit area. These sound intens...

Q: Find the vector that points from q4 to q6 and call it 74.6- x component of the vector Give your answ...

A: To answer the questions, we will use geometry in the problem, and coulomb's law. The details are giv...

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A: Given:

Q: A certain hybrid vehicle has a fuel economy of 53mi/gal during city driving. What is this fuel econo...

A: We know that, 1 miles = 1.609 km 1 gallon = 3.78541 L  

Q: 6 V ww

A: The mesh equation for loops are given as, Loop 1 as,

Q: 7: a- Draw again the circuit of figure 10, b- What is the current carried by L2? .What is then the c...

A: Solution: Given that the current through L1 is 0.5 A.  (b). Note that L1 and L2 are connected in ser...

Q: A coil of copper wire has resistance of 90 ohms at 20 degree celsuis and is connected to a 230 V sup...

A: Given Resistance (Ro)          = 90 ohms Temperature T1   = 20° Temperature T2   = 60° Voltage (V)  ...

Q: You shine a laser on a plastic prism made from an unknown material and measure the angles relative t...

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Q: A closed cylindrical tank 3m high and 1m in diameter contains 1.2m of oil (SG = 0.8), 1m of water an...

A: Given, L=3mD=1mP=16 KPad=125 mm

Q: the Arctic assume sea ice is approximately 2m thicker in winter than in summer. Melting sea ice requ...

A: 1st we will find the mass of the ice cube and then heat required  to melts this much mass of the ice...

Q: Calculate the nuclear binding energy per nucleon, in MeV, for a nucleus containing 135 nucleons, of ...

A: Given that,Number of nucleons=135Number of protons=56Number of neutrons=79Number of electrons=56Tota...

Q: For this midterm exam question, Walmart would like lo increase the number of customers using their o...

A: A lurking variable is a variable that is not included as an explanatory or response variable in the ...

Q: The central density of the Sun is calculated to be p=1.53x10$ kg/m³ and the averaged opacity at the ...

A: Given, The central density of the sun is, ρ=1.53×105kg/m3 And average opacity at the center is, κ=0....

Q: Problem 2: Auniform beam of length L and mass M has its lower end pivoted at P on the floor, making ...

A: The beam is the horizontal structural member that is used to support the load. The abeam can be alig...

Q: A 220-N child is in a swing that is attached to ropes 1.90 m long. Find the gravitational potential ...

A: Given Child mass (mg) = 220 N Rope length (h) = 1.90 m Angle θ           = 27°

Q: 6 V

A: According to Maxwell's mesh equation for a mesh

Q: A 3-g bullet is fired horizontally into a 7-kg block of wood suspended by a rope from the ceiling. T...

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Q: At t = 0, the wavefunction is given as: (x, t = 0) = bxe-ax on the domain 0 < x < ∞. (а) What is the...

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Q: A cannon is on the edge of a vertical cliff 50 m high. The cannon then fires horizontally giving the...

A: The height of the vertical cliff is given as, h=50 m. The initial velocity of the ball is given as, ...