A Juniper wood log with a weight density of about 35 pounds/ft and a volume of 2 ft is submerged in water. What is the buoyant force on it? [The weight density of water is 62.4lb/ft°.]

Q: 2) A wire made of an unknown alloy hangs from a support in the ceiling. You measure the relaxed…

A: Given,Length of the wire, L = 1.6 mradius of the wire, r = 0.00035 mmass. m = 5.0 kgthe spring…

Q: Light of wavelength 441 nm is incident on a diffraction grating that has 1.67 x 10° lines/cm. What…

A: Given that:-Wavelength, λ=441 nm=441×10-9 mNumber of lines per cm=1670Number of lines per…

Q: What is the average power supplied by a 60 kg person running up a flight of stairs a vertical…

A: The person's average powerP=WtW is work donet is the time.Work done, W=FdF is the force on the…

Q: In a 200.0-m relay race (each leg of the race is 50.0 m long), one swimmer has a 0.450 second lead…

A: Given that,There are two swimmers swim the same distance at constant speed .Swimmer A gets 0.450…

Q: A woman is standing on the veranda of a house which is 5.6m high. She throws a ball horizontally…

A:

Q: E(n) = n² h² 8m₂ L2 3² × (6.62607004 × 10-34 Js)² = 8 ×9.1093856 × 10-3¹ kg × (8.4 × 10-¹0)² m² It's…

A:

Q: (10%) Problem 2: An airplane starts at rest and accelerates at 7.1 m/s2 at an angle of 28° south of…

A:

Q: A rocket, initially at rest on the ground, accelerates straight upward from rest with constant (net)…

A: In the given problem, the rocket starts accelerating straight upwards, starting from rest, with a…

Q: Consider a vacuum-filled wave guide whose cross-sectional shape is a 45° right triangle as shown…

A:

Q: A sewing machine needle moves up and down in simple harmonic motion with an amplitude of 1.75 cm and…

A:

Q: I need help with this problem, I don't know how to start it.

A:

Q: 5. A 2.0 kg ball is thrown horizontally, at 5.0 m/s, from a height of 5.0 m. How fast will it be…

A: Given, mass of the ball, m=2kg ; height of the ball, h=5m

Q: A scaffold of mass 72 kg and length 6.7 m is supported in a horizontal position by a vertical cable…

A:

Q: The combined force that you and your friends exert has magnitude 8.00 x 10? N, and starting from…

A: Solution: Calculate the work done in pushing the car. W=Fxd Here, F is the force exerted and d is…

Q: Find the location h of the spot toward which the pitcher must throw if ball is to hit the catcher's…

A:

Q: -1 A satellite is in an elliptical orbit with a semi major axis of 8000km and an eccentricity of…

A: We know, The velocity of the satellite at perigee, vp=GM1+ea1-e       Equation 1 where, GM is the…

Q: A coil has an inductance of 3.00 mH, and the current through it changes from 0.200 A to 1.50 A in a…

A: Given that,Inductance, L=3.00 mHChange in current, dI=1.50A-0.200A=1.300 AChange in time, dt=0.200…

Q: A sled of mass 70 kg starts from rest and slides down a 10° incline 80 m long. It then travels for…

A: Given that-Mass of the sled, m= 70 kgLength of the plane, L= 80 mAngle of inclination of the plane…

Q: I need help with this HW question

A: Assume that, the car is not moving and it has a down ward vertical speed and forward horizontal…

Q: b) An object is sliding on a frictionless, horizontal turntable that rotates with angular velocity .…

A:

Q: A typical adult ear has a surface area of 1.90 x 10³ m². The sound intensity during a normal…

A:

Q: The speed skier has a frontal surface area of 0.75 m^2 and a Cd of 0.54 (assume that p=0.95 kg/m^3)…

A: Given that:- The area is A=0.75 m2. The drag coefficient is Cd =0.54. The density is p=0.95 kg/m3.…

Q: I need help with this HW question

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Q: I need help with this HW question

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Q: An air conditioning unit is vibrating in simple harmonic motion with a period of 0.55 s and a range…

A: Given,

Q: In the figure, a climber leans out against a vertical ice wall that has negligible friction.…

A:

Q: The escape velocity for a body projected vertically upwards from the surface of earth is 11 km / s.…

A: Given:                                                         Angle θ=45∘Surface of…

Q: ite an essay Study the atomic spectra by e spectrometer. please write more than O words.

A: We need to write the essay about atomic spectra by spectrometer.

Q: In the figure, a uniform sphere of mass m = 1.76 kg and radius r = 0.232 m is held in place by a…

A:

Q: A Texas cockroach of mass 0.150 kg runs counterclockwise around the rim of a lazy Susan (a circular…

A: The given values are, m=0.150 kgR=20.0 cm=0.20 mI=5.55×10-3 kg·m2v=2.22 m/sω0=2.67 rad/s

Q: For the circuit shown, where E = 12 V and r 10 the potential difterence (in V) across the 50…

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Q: In Melde's experiment, the number of loops on a string changes from 7 to 5 by the addition of o.015…

A: We need to find here-Initial tension (T1)=?Given-P1=7P2=5T2=T1+0.015 kg.wt

Q: You need to find the velocity of the Tesla after 1.4 seconds. What equation should you use?

A: tesla is a car has ultimate speed to find the velocity in given time we use    velocity =…

Q: 3. Calculate all of the possible values of 0m for light of wavelength 425 nm and of wavelength 670…

A:

Q: (10%) Problem 8: An object rolls off a tabletop with a horizontal velocity vox = 28 m/s. The table…

A: a) Apply the second kinematic equation in the vertical motion and substitute the required values to…

Q: I need help with this HW question

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Q: NAKT Compute the pressure scale height H = on Earth for a temperature T=300 K and the following…

A: scale height is basically a more common more general way of explaining how a value/amount fades away…