35 The bottom of a heavy block is covered with sandpaper. The block is repeatedly slid 1.0 meter at constant speed across a uniform, horizontal wooden plank by the application of a constant horizontal force. As the coefficient of friction between the sandpaper and the plank decreases, the amount of work done in sliding the block 1.0 meter along the plank at constant speed (1) decreases (2) increases (3) remains the same

Q: can you please explain answer number 3?

A: In interference , when crest overlap with crest (or trough) it form a constructive interference and…

Q: Problem 7: A satellite is traveling around a planet in a circular orbit with radius R. It ves in a…

A:

Q: Would it be a minus sign instead of a positive one ?

A: Yes , it would minus sign.  Complete solution is below.

Q: Two small spheres with mass m = 14.4 g are hung by silk threads of length L = 1.25 m from a common…

A:

Q: 1. A 14.0 cm long wire experiences a magnetic force of 0.370 N. If the perpendicular magnetic field…

A:

Q: 3. Does the real image formed by the lens in the original problem always have a length less than the…

A: The image formed by the convex lens is real when the object is placed farther than the focus of the…

Q: A train leaves Little Rock, Arkansas and travels north at 85 kph. Another train leaves at the same…

A: The two trains, one moving north and the other moving south, are moving in opposite directions.…

Q: As a ball falls under the influence of gravity, does gravity do positive work or negative work?…

A:

Q: Answer B is saying it is wrong.

A:

Q: 2. Given the wave equation y(x, t) = 2.0 Sin(3.0x – 4.0t + jm, where x is in meter and t is in…

A: The equation of wave is given by y(x,t)=Asin(kx-ωt)                   ......(1) where A is amplitude…

Q: A system consists of a vertical (spin). A cord is passed over th attached to the end of the cord

A:

Q: • A penny is placed 4.0 cm in front of a converging lens ● The focal length of the lens is 15 cm a)…

A:

Q: A red cross helicopter takes off from headquarters and flies 75 km at 30 degrees south of west.…

A:

Q: Please answer a b c for my practice test so i can check my answers thank you!

A:

Q: In the figure, a force F is being applied to the block with a magnitude such that it moves up along…

A:

Q: find the answer for number c

A:

Q: A force F is applied to a 2.0 kg radio- model car parallel to the x-axis as along a straight track.…

A: To calculate the work done from the given graph, the following concept to be used. " The area under…

Q: An electron of mass m is confined to an infinitely deep square well potential. V(x) = ∞, V(x) = 0,…

A: The energy eigenvalues of particle in square well in 3rd state is given by, E=32π2h22ma2E=9π2h22ma2…

Q: Problem 2: For the image shown, the capacitors have the following values: C1 = 2.95*10^-6, C2 =…

A: Given,   Total capacitance, C = 5.94×10-6 F               Potential (V) =  81 V

Q: Problem 2: A 50 gram ball 1s thrown against a wall at 5 m/s. A The ball hits the wall and then…

A: Consider the ball is thrown to the right (positive) or moving towards is positive  and rebounds to…

Q: (ii) A mass of 4 kg is attached to a spring and rests on a horizontal surface. The mass is then…

A:

Q: 1. A paintball with a mass of 0.15 kg is fired from a paintball gun that has a mass of 5.5 kg. The…

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

Q: (3) The impulse J that an object experiences can be calculated as: j = vAt avg Note that the impulse…

A:

Q: 1. If Mass 1 = 5kg and Mass 2 5 kg with a distance of 2 meters, what is the force exerted by the two…

A:

Q: As a hiker in Glacier National Park, you are looking for a way to keep the bears from getting at…

A:

Q: - 40. A 2.00-kilogram mass is at rest on a horizontal surface. The force exerted by the surface on…

A: Part (40): Given: The mass of the object is 2 kg.

Q: 5. A block weighing 10.0 newtons is on a ramp inclined at 30.0° to the horizontal. A 3.0-newton…

A: