6. Four students took turns applying a force to an object in a physics lab. The graph below shows the force applied to the object by these four students plotted versus displacement. Which student performed 0.56 J of work on the object? A. Yuko B. Man C. Leo D. Tony

Q: Which of the following statements are TRUE? A. Power is a scalar physical quantity. B. Power can be…

A: A - True ( since P=W/t & work is scalar)  B - True (since work can be positive, negative &…

Q: In which of the following scenarios is work being done, according to the physics definition?    a.…

A: Let's check each option one by one a Joe solves a “work” calculation in his head According to the…

Q: Sally pulls on the rope shown below with a force of F. The rope forms an angle of 50° with the…

A: Given: θ=50°μ=0.1a = 0.4 m/sm=5 kg

Q: Tasha and Mike push on a car that has stalled, trying unsuccessfully to get it to move. Tasha pushes…

A: The work done by a force is equal to the force times the displacement occurred. Since, they both…

Q: A 115-kg object is initially moving in a straight line with a speed of 50.0 m/s. a.) If it is…

A:

Q: A worker pushes a sled with a force of 50 N over a level distance of 10.0 m. If a frictional force…

A: Concept of Net work done on an object moving on frictional surface: A frictional surface causes an…

Q: As a simple pendulum swings back and forth, the forces acting on the suspended object are the…

A: When a simple pendulum executes its motion, then the force acting on the pendulum are gravitational,…

Q: A 6.00-kg block and an 8.00-kg block are connected as shown. When released, the 6.00-kg block…

A: Given that,Mass of object which is hanging in air, M =6kgmass placed on horizontal surface,…

Q: In which of the following situations are you doing work on an object ? A. holding a backpack over…

A:

Q: 2. An 8.0kg box slides down a surface that is inclined at 53° below the horizontal at a distance of…

A: (A) The work done due to friction is, Wfriction= Ffriction.d Here, " Wfriction is the work done due…

Q: A. 1. What happens when a force exerted on an o Potential energy is created. Kinetic energy is…

A: Introduction: Newton's first law of motion states that an object stays in its state of rest or…

Q: QUESTION 3 What happens when a net force performs positive work on an object? O a. The object…

A: Work-energy theorem gives us a relation in b/w work & K.E. This theorem states that when at…

Q: What is Power? Power can Power has many different be used to refer to a source of plant. If a girl…

A: Power has many different forms and types. Power can be used to refer to a source…

Q: A person pushes the wall with a force of 53N . How much work the person is doing on the wall.   A.…

A:

Q: A ball is thrown straight up from the ground. The work done on it by the force of gravity is

A: Suppose a body of mass "m" & it is thrown vertically upward.

Q: QUESTION 4 The work done by any force can be calculated by using the formula W = F s cos(e) where…

A: The work by any force can be calculated by using the formula is    W=Fscosθ Here F is the applied…

Q: Grogu is using the "force" to lift the Mandalorian who mass is 88 kg for 2.1 meters in 7 seconds. a.…

A: Given  Mass =88 kg Height=2.1 m Time=7 sec

Q: write two equation, how to compute the work done on a system due to an external force. Explain these…

A: When a system is displaced due to an external force, there are three things that must be known to…

Q: Josh pushes a 48.0-kg shopping cart with a force of 85.0 N in a direction 35.0° below the horizontal…

A: weight of cart w = 48kg applied force on cart F = 85N the applied direction θ = 35° distance moved…

Q: Q05. If an object goes to the left, but one of the forces pushes it to the right, opposing its…

A:

Q: In 1990 Walter Arfeuille from Belgium lifted a 281.5 kg object along a 17.1 cm distance using only…

A:

Q: 64. Which of the following statements is/are true about the value of work done?   a. The work done…

A:

Q: 5. If the sign for work is negative, * O a. Kinetic energy is increasing. O b. Kinetic energy is…

A: work energy theorem. Work done is equal to change in Kinetic energy. W = K.E 2- K.E 1 K.E. 2 -…

Q: The work down in accelerating a body along a frictionless horizontal surface equals the body's…

A: Given data:  Body accelerate on the horizontal surface Surface is frictionless Required: Work done

Q: Which of the following statements is/are true about the value of work done? a. The work done by a…

A: The work done due to a force is given by  W = Fd.cos(θ) Here F = Force d = displacement θ = angle…

Q: Choose all that applies to Kinetic energy.   A. Never negative.   B. Energy associated with…

A:

Q: Jayvee rode a 57.6 kg cart in a roller coaster. The cart begins to move straight at 2.8 m/s at a…

A:

Q: a.Determine an equation for the power exerted from the bar onto the skier with respect to time.  b.…

A:

Q: Which of the following statements are FALSE? A. Power is a scalar physical quantity. B. Power can be…

A: Rate of doing work is known as power . So power (P) = W/t

Q: Two cars have the same mass, but one is moving three times as fast as the other is. How much more…

A:

Q: A 5.00 gram bullet moving horizontally with a speed of 400 m/s collides with a wooden block. After…

A:

Q: Select each of the true statements below A. The kinetic energy can be negative. B. If the Moon…

A: A. False The kinetic energy of a body cannot be negative because the mass cannot be negative and the…

Q: 4. A 1000-N force is applied onto a block with a mass of 150-kg as shown below. The block starts…

A: Apploed force (F) = 1000 N d = 5 m θ = 30oμk = 0.15mass (m) = 150 kg

Q: Which of these is an example of no work being done?   a. a child pushes a toy car across a flat…

A: Work done is the energy transferred when a force is displaced by a distance.

Q: A person does 400 J of work in 5 sec. Power of the person is calculated tto be ? Choose one correct…

A: Given, Work done by the person W = 400 J Time t = 5 sec We know the expression for power  P=Wt

Q: Two people of the same mass climb the same set of stairs. Person A climbs the stairs in 25 s. Person…

A: Let mass of each person = m Weight of each person = mg Time taken by A to climb the set of stairs =…

Q: A force acts on a particle that moves along the X axis and varies with position according to the…

A:

Q: Identify each situation as: WORK IS DONE or WORK IS NOT DONE           a.A teacher applies force to…

A: Whether the work is done on the object or not depends on the force applied and displacement of the…

Q: 57. Which of the following describes the mechanical energy of a cart at rest at the top of a steep…

A: Mechanical energy is the sum of kinetic energy and potential energyH = T +Uwhere H denotes the…

Q: A baseball hits the catcher’s glove with a horizontal velocity of 55m/s. The mass of the baseball is…

A: Please follow the steps below.Explanation:

Q: Energy can be transferred between objects and it can change forms.   a. Give an example of a…

A:

Q: Match each example to the type of work or energy described. a swing travels in the same direction it…

A:

Q: Mark and David are loading identical cement blocks onto David’s pickup truck. Mark lifts his block…

A: The rollers on the ramp used by the David were frictionless, because the ramp is frictionless, so he…

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.