12. Which curve listed below describes the velocity of a simple harmonic oscillator (as a function of time) that begins its motion at maximum displacement on the right of the system. Use the F.O.R. wherein + is to the right with x = 0 at the center. A. A positive cosine curve B. A positive sine curve C. A negative cosine curve D. A negative sine curve

Q: A car uses a power of 100 W within 25 seconds to operate. What is the work done?

A: Write the given values with suitable variables. P=100 Wt=25 s Here, P denotes the power and t…

Q: What net force, in Newtons, is needed to do 1,847 J of work over a distance of 144 meters?   Round…

A: Given thatwork, W=1847 Jdistance, d=144 mas work, W=Fdwhere F is force

Q: When you lift a box with a mass of 350 kg to a height of 2.5 meters, how much work have you done?

A:

Q: Write a short note on work?

A: Work

Q: Your mother got mad at you because you fall down her favorite plate at a height of 4 feet with a…

A: Kinetic energy = 1698.9 joule

Q: A box with a max of 20 KG at 5m is lifted to 20 m how much work was done? (Used=changed in PE

A: The distance moved by the box is h=20-5m=15m

Q: How much work is required to raise a child of mass 35 kg up to 1.5 meters high? answer should be in…

A: Given  Mass (m) = 35 kg  Height(h) = 1.5 m    Required energy will be equal to the increase in…

Q: what is the power required to lift  a 3 kg bag of nails 5 m in 10 s?

A: Mass (m) = 3kg Height (h) = 5m Time (t) = 10s

Q: What is the work done lifting a 20kg child from the floor to a height of 2m? (Note that a mass of…

A: Given  Mass(m) = 20 kg  Height (h) = 2 m  Acceleration due to gravity near earth surface (g) = 9.8…

Q: 5. How many free electrons are there in a rectangular block of a conductor whose dimension is 8 m by…

A: Given that:- The dimension of rectangular block, D=8m×4m×3m The drift velocity of electrons, vd=4…

Q: if you do 20 J of work lifting a rock weighing 30 N, how far will you lift it?

A: Write the given values with the suitable variables. W=20 JP=30 N Here, W is the required work and P…

Q: How much work is required to increase the kinetic energy of a motor scooter by 4000 J?

A: The objective of the question is to find out the amount of work required to increase the kinetic…

Q: How much work is required to lift a 6.9-kg backpack 1.9 m to put it on?

A: mass(m)=6.9 kg displacement(d)=1.9 m g =acceleration due to gravity=9.80 m/s2

Q: A 2-kg block of wood is pushed by horizontal force of 10 N to a distance of 3 m. The work done…

A: Given:  Mass of block m= 2 Kg Force applied F= 10N Distance d= 3m

Q: What net force, in Newtons, is needed to do 1,164 J of work over a distance of 125 meters?

A:

Q: How much work would you do if you climbed 8 meter up a tree, if your weight is 57 kilograms?

A:

Q: How much work would have to be done to bring a 1030-kg automobile traveling at 86 km/h to a stop?

A:

Q: A force of 49 N raises a 5 kg object 0.82 m upwards. How much work was done by the force?

A:

Q: Calculate the amount of work done in raising a block of mass 5 kg through a height of 40 cm.

A:

Q: How much power does it take a steam engine to do 6.8 × 10' J of work in 2.61 x 10° seconds? (answer…

A: Given data:  Work (W) = 6.8×107 J Time (t) = 2.61×108 s Required: Power (P)

Q: How much work would have to be done to bring a 980-kg automobile traveling at 87 km/h to a stop?

A: Mass of the automobile = 980 kg Speed of the automobile = 87 km/h…

Q: A 26 meter chain is hanging from a winch located 26 meters above the ground. If the chain weighs 4…

A: Basic: we know that the work done is given by force into. Displacement  so we just find the small…

Q: What is the potential energy stored in a box if it has a mass of 224 kg and is stored on a shelf 7 m…

A: Given: Mass (m) = 224 Kg  Gravity (g) = 9.80 m/s2  Height (h) = 7 m

Q: A force of 49 N raises a 5 kg object 0.61 m upwards. How much work was done by the force?

A: Applied force (F) = 49 N Mass (m) = 5 kg Distance moved (d) = 0.61 m (upwards)

Q: How much work is done lifting a 120-pound chair from the ground to the top of a 40-foot building…

A:

Q: A 1-kg object is dropped from a he ight of 100 m. What is its potential energy?

A:

Q: The unit of Power (P) is

A: We have to answer the unit of Power (P)

Q: How much work is done moving a 2.4 kg book to a shelf 4.0 m high?

A: Given that,Mass : m =2.4 (kg)Height : h = 4 (m)Gravity : g = 9.8 (m/sec2)Here we need to find the…

Q: How much work is done when moving a box 25 m with a net force of 30 N?

A:

Q: how much work is done when a force of 816.0N is exerted while pushing a crate across a level floor…

A: GivenForce F = 816.0 NDistance d = 1.40 m

Q: How much work is done in lifting your classmate with a mass of 72kg 1.3m off the floor?

A: Given: The mass of the classmate is 72 kg.            The distance is 1.3 m.  To determine: The work…

Q: How much work is required to lift a 4.6-kg backpack 1.1 m to put it on?

A:

Q: How much work is required to throw a ball with a mass of 0.44 Kg 23.4 m/s?

A: Here in this question we consider the ball initially is in rest.                 i.e. vi = 0 m/s.…

Q: How much work is done moving a 2.4 kg book to a shelf 4.0 m high?

A:

Q: All of the following refers to power, except the rate of doing work by a system

A: Poer is rate of doing work. P=Wt its unit is J/s or Watt. Change in energy per unit time is also…

Simple harmonic motion

Simple harmonic motion is a type of periodic motion in which an object undergoes oscillatory motion. The restoring force exerted by the object exhibiting SHM is proportional to the displacement from the equilibrium position. The force is directed towards the mean position. We see many examples of SHM around us, common ones are the motion of a pendulum, spring and vibration of strings in musical instruments, and so on.

Simple Pendulum

A simple pendulum comprises a heavy mass (called bob) attached to one end of the weightless and flexible string.

Oscillation

In Physics, oscillation means a repetitive motion that happens in a variation with respect to time. There is usually a central value, where the object would be at rest. Additionally, there are two or more positions between which the repetitive motion takes place. In mathematics, oscillations can also be described as vibrations. The most common examples of oscillation that is seen in daily lives include the alternating current (AC) or the motion of a moving pendulum.