- How much work is done when Allen applies a force of 200N to drag an 80kg crate 8.0m across the warehouse floor?

Q: Express and identify the resultant of the two forces and one couple shown acting on the shaft angled…

A: Torque due to a force couple is given as  Torque,τ =(r2→-r1→)×F→ r2 →and r1→ are position vectors of…

Q: Which of the following statements is/are TRUE when the shown bar magnet is retracted from the…

A: Option  (b) is correct

Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 3.59 g coins…

A: mass of each coin = 3.59 g total mass = m = 2x3.59 = 7.18 g

Q: Using these values, draw the projectile trajectory of the tennis ball from your Experiment #4…

A: Given, Initial & final horizontal speed of the projectile, ux = vx = 3.6 ms Initial velocity of…

Q: The uniform solid block in the figure has mass 36.0 kg and edge lengths a = 0.793 m, b = 1.43 m, and…

A:

Q: Using equations above, complete the following table with values for initial horizontal velocity,…

A: Given:  No air resistance is given.

Q: An electron traveling with a speed of 3,000 km/s is in a circular orbit of diameter 20.0 cm. What is…

A:

Q: Consider this sphere. How can we prove that the size of the closed surface is independent of the net…

A: For sphere of radius r  Electric field (E) = kq/r2  Area of sphere = 4πr2

Q: 20. Particles A,B,C and D form a square with 4.13cm sides. Particles A and B both have charges of…

A: in this question  we use simple net force , field and potential  equation of system.

Q: -1 -1 We would like to produce a 1000 ohm resistor from boron carbide having electrical conductivity…

A:

Q: Between mars and Jupiter the asteroid ceres orbits the sun at an average radius of 2.766 AU. Use…

A: Given:Average radius of the orbit, a = 2.766 AUAsked:Calculate time taken by Ceres to complete 1…

Q: What do you mean by the change of state of matter? Explain:

A: Given data; Define change of state of matter  Explain the statement which is given as;   a and b

Q: can you classify ice as a mineral? Explain in less than 10 sentences.

A:

Q: Can you do a free-body diagram of this problem? Water at a gauge pressure of 3.8 atm at street level…

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Q: Mass A moves at 20 kph in the direction N 400 E while mass B moves at 30 kph in the direction of S…

A: Given:- VA = 20 kph (N 40° E) = (20sin(40) i^ + 20cos(40) j^) kph  VB = 30 kph (S 30° W) =…

Q: (a) Find the electric potential at A. kv (b) Find the electric potential at B. kv (c) Find the…

A: We know,for the charge Q the electric potential at a distance r…

Q: ome people feel motion sickness with an acceleration of 2% g, where g = 9.8 m/s2 is gravity. boat…

A: Given:a=2 % gg=9.81 m/s2Time interval=25 s

Q: Consider a point on a bicycle wheel as the wheel makes exactly four complete revolutions about a…

A: Given : A point on a bicycle wheel completes exactly four revolutions around a fixed axis. To find :…

Q: How does the density of a liquid vary with temperature. Explain briefly?

A: Density  The density of a liquid can be defined as the amount of mass present in a cubic volume. The…

Q: Calculate the speed of a satellite moving in a stable circular orbi about the Earth at a height of…

A:

Q: Describe a simple experiment to illustrate that molecules are not at rest, but they constantly move?

A: Movements of molecules.

Q: A scanning electron micrograph of xylem vessels in a corn root shows the vessels magnified by a…

A:

Q: (!) THE FOLLOWING QUESTIONS ARE BASED ON THE INFORMATION GIVEN BELOW. The lift of an observatory…

A: Given:-  The lift of an observatory tower is accelerating upward with a = 2 m/s2 The moment the lift…

Q: An automobile traveling 110 km/h has tires of 69.0 cm diameter. (a) What is the angular speed of the…

A:

Q: The forces acting on a wooden block are shown in the figure given alongside. Find the resultant of…

A: The force system is shown below.

Q: A bicyclist starts down a hill with an initial speed of 2.0 m/s. She moves down the hill with a…

A:

Q: A rod 12.0 cm long is uniformly charged and has a total charge of -23.0 µC. Determine the magnitude…

A: Write the given data. L=12 cmQ=-23 μCr=32 cm

Q: 2.0 x103 kg satellite is in a circular orbit around the earth (m = 5.98 x 1024 kg). The satellite…

A:

Q: Consider again pulling a 60 m rope up a cliff face, where the rope has a mass of 66 g/m. At what…

A:

Q: 4. A pilot flies on a heading of N40W with an airspeed of 240 km/h. Her actual ground velocity is…

A: Given:velocity of plane with resp to air, vpa= 240 km/h at N40Wvelocity of plane with resp to…

Q: Two permanent magnets N S E Which of the following statement/s is/are TRUE? * I. II. In measuring…

A: in this ques we discuss about magnetic field .

Q: Find the potential energy of 2.4 kg mass kept at height of 7.2 m. Take g = 10 m/s²

A: Given Mass of the object = m = 2.4 kg Height = h = 7.2 m g = acceleration due to gravity = 10 m/s2…

Q: A 68kg trampoline artist jumps vertically upward with a speed of 4.9m/s. If the trampoline, 3.4m…

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Q: In the figure, block 1 has mass m₁ = 450 g, block 2 has mass m₂ = 510 g, and the pulley is on a…

A:

Q: One of the radioactive nuclides formed in nuclear power plants is hydrogen-3, called tritium, which…

A: According to theroy of Radioactivitythe decay rate of a nuclei which has initially N0 nuclei  at any…

Q: A constant force of 9 Newtons passes through a point (3, -4) and (10, -2). What is the work done by…

A: Work done is defined as  W=F→.S→F →=force vectorS→ =displacement vector

Q: Which of the following quantities are physically "equal" in Newtonian mechanics? a. Energy and…

A: 3. Let's check each option one by one a. Energy and power Incorrect Power is defined as rate of…

Q: A large basketball and a smaller tennis ball are dropped at the same time from the top of a…

A:

Q: Circular turns of radius r in a race track are often banked at an angle 0 to allow the cars to…

A: The velocity of the car is v=21 m/s The radius of the track is R=420 m Assume the acceleration due…

Q: A piece of charcoal (totally carbon) from an ancient campsite has a mass of 262 grams. It is…

A:

Q: Explain why in optical fiber the higher TE and TM modes (m> 1) mixed into hybrid mode

A: Energy can propagate through a medium or  a vacuum. Propagation modes vary depending upon the type…

Q: A rod 12.0 cm long is uniformly charged and has a total charge of -23.0 pc. Determine the magnitude…

A: in this question  we use simple electric field  equation  at axis of rod.

Q: A spider is hanging from silk strands, as shown in the figure. The force of gravity on the spider is…

A: Resultant

Q: To produce higher induced EMF, one should * I. Use a stronger magnet II. Increase the speed of the…

A: Faraday's electromagnetism states that voltage (electromagnetic force) is generated in a circuit…

Q: A block of mass 1 kg and a block of mass 3 kg are sliding on a frictionless surface. They collide…

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Q: Calculate the speed of a satellite moving in a stable circular orbit about the Earth at a height of…

A:

Q: A nerve impulse travels along a myelinated neuron at 56.9 m/s. What is the speed in mi/h and cm/ms?

A:

Q: 14. How many significant figures are there in 0.0006? Express your answer in numbers (1,2,3,4,5,…

A: Significant figures are defined as the digits present in the number which are meaningful and provide…

Q: Coulomb's law for the magnitude of the force F between two particles with charges Q and Q separated…

A: SOlution: Given that q1 = -11 nC, x1 = -1.715 m q2 = 32.5 nC, x2 = 0 q3 = 48 nC, x3 = -1.235 m

Q: An optical cavity consisting of two identical concave times, the sum of the radii of their curvature…

A: A resonator is stable resonator when  0<g1g2<1Where g2=1-LR2 and g1=1-LR1R= radius of…