A block attached to a spring with a stiffness of 3.4 N/m. The relaxed length of the spring is 15 cm and its current length is 10 cm. What is the vector force that the spring exerts on the block? A. (-0.34, 0, 0) N                 B. (0.51, 0, 0) N                  C. (-0.51, 0, 0) N D. (0.17, 0, 0) N                  E. (-0.17, 0, 0) N

Q: Identify whether the following is a scalar quantity or a vector quantity. a. 800 J of work b. 120 N…

A: Given data:  The physical quantities Required: Identify qualities as a scalar or a vector quantity

Q: A 0.190-kg wooden rod is 1.20 m long and pivots at one end. It is held horizontally and then…

A: Given,  Mass of rod, m=0.19kg Length of rod, L=1.2m

Q: A very light spring with spring constant K = 500 N/m is hung (es) by a fixed ceiling. Two forces F,…

A: Given, Spring constant, k = 500 Nmforces, F1 = F2 = 20 N

Q: How long will it take a 4 hp motor to lift 400 kg piano to a sixth story window 1800 m above?

A: 1hp =746W so 4hp=4*746=2984W Mass ,m =400kg Height, h=1800m energy required to lift, E=mgh where g…

Q: Fapp = 120 N m = 30.0 kg f = 5.00 N d = 0.800 m

A:

Q: 65 20 8 Q3: Mention the basic drawing terms and the modification terms needed to draw the figure…

A:

Q: A skier is gliding down a gentle slope at a constant speed. What energy transformation is taking…

A: K denote kinetic energy.Ug denote gravitational potential energyEth denote thermal energy.Skier is…

Q: A particle starts from rest and accelerates as shown in Figure. Determine the particle's speed at t…

A: Initial speed of the particle is u = 0 m/s  Time is t = 10 s .

Q: What is the magnitude of the force required to stretch a 10 cm-long spring, with a spring constant…

A: Given intial length of the string l= 10cm Spring constant of the spring k= 100N/m Length after…

Q: A block on a frictionless horizontal surface is attached to a cable and a spring that is stretched…

A: Given data, Stretched in the spring = 0.17 m Tension in the cable = 48 N Normal force on the block =…

Q: 87. A stretched spring has greater energy and therefore greater mass than an unstretched spring.…

A: Displacement of the spring ( x ) = 20 cmForce constant of the spring ( k ) = 480 N/m

Q: Calculate the potential energy of a 4.5 kg bowling ball that is on the ground. Assume that g = 9.8…

A: Given that:- Mass of the bowling ball=4.5Kg acceleration due to gravity is g=9.8m/s2 And as the ball…

Q: Q1/ Derive the power (watt) into its the basic S.I units?

A:

Q: For each of the following, is W-R positive, negative, or zero? A B F ф B d A d B W- is is WA-B A B A

A: The expression of work done is given by, W=Fdcosϕ Here, F is the force, d is the distance traveled,…

Q: Which of the following is not a unit of power? Select one: a. J/s b. W⋅s c. ft⋅lbs/s…

A: As we know that,            Power is the amount of energy transferred per unit time or rate of doing…

Q: mm mm 30 40 60 W 110 N 240 N A spring with a pointer attached is hanging next to a scale marked in…

A: The expression for force applied on the spring due to the load is,F=k∆xwhere, ∆x is the extension in…

Q: The following lab set-up consists of two carts on a frictionless surface. Each end of the spring is…

A: Given:-  The mass of cart A is m and the other mass of cart B is 3m and both the cart are connected…

Q: object of mass 357 g is suspended from a spring with a spring constant of 200 N/m, the extension of…

A: F= kx

Q: Old-fashioned pocket watches needed to be wound daily so they wouldn’t run down and lose time, due…

A: Pocket watches

Q: The left end of a spring is attached to a wall. The right end of the spring is attached to a block.…

A: The spring constant, k=26.2 N/m Displacement of the spring in the x-direction, x=11.3 cm

Q: Match associated items - A. B. C. D. E.…

A: Terms given in left column : Power Physics unit of energy Physics unit of power Potential energy…

Q: Choose the correct  letter only.  2.This is defined as 1 Nm.  A. Energy B. Watts C. Joule D.…

A: The Newton-meter is used as a unit of energy or work called Joule.   Work…

Q: A mass of 2.5 kg hung from the end of a spring extends the spring by 0.3 m. Another  0.0065kg is…

A:

Q: 94. Which of the following is a unit of energy?* O a. W O b. kg m/s O c.J O d. m/s

A: Energy : Energy is defined as the capacity of doing work.

Q: A child's toy consists of a piece of plastic attached to a spring in the figure below. The spring is…

A: According to the conservation of energy, 12kx2=mghkx2=2mghk=2mghx2

Q: please find the average initial force

A: Average force is the sum of forces/total number of trials For the length 0.05 m For the length 0.6…

Q: 43. A 200 g mass stretches a spring 40 cm. How much Potential energy does the spring have? A. .392 J…

A:

Q: An ice cube is placed in a microwave oven. Suppose the over delivers 105 W of power to the ice cube…

A:

Q: A value of 1 Joule is equal to what? A. 1N * m^2 B. 1N*M C. 1 n/m^2

A: A value of 1 Joule is equal to 1N*M The correct answer is B.  1N*M

Q: Suppose that à = 2i + j, B = i- 4j + k, and Ĉ =j+k À· (B × Č)? What is

A:

Q: From the given figure, determine the rectangular representation of the 500 N force. F = 500 N O a. F…

A: To solve this question we will use the concept of vector transformation. Let the angle between the…

Q: A rope swing is hung from a tree right at the edge of a small creek. The rope is 5.0 m long; the…

A:

Q: With no one sitting on it, a certain mattress is .4 m tall. When a 715 N person sits on the…

A:

Q: 12. A 50 g mass hangs at the end of the spring. When 20 grams more are added to the end of the…

A:

Q: Can work done by the following forces be expressed as potential energy? a. Weight b. Friction C.…

A: For a) weight and c) spring force,  we can expressed work done as potential energy. For b) Friction…

Q: The form of energy that is associated with the motion of the particle.   a. Rest energy b. Heat…

A: There are different forms of energies associated with a particle like potential energy, kinetic…

Q: A 60.0 kg trunk starts at rest on a student's dorm room floor. The student pushes the trunk a…

A: Solution:-Given thatmass of trunk (m)=60 kgdistance travelled by trunk (d)=10 mForce (F)=300…

Q: A block of mass 100 g, resting on a frictionless surface, is pushed up against a spring compressing…

A:

Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.