5. What will be the work done in holding a 25 kg iron plate for 25 seconds? [A] 25 j [B] 1j [C] 0 [D] 625 j
Q: 3. Consider a 65-kg object moving at a speed of 12 m/s. Use work and energy to solve for the…
A:
Q: 1. A car starts at rest, and ends up with 1500 J of KE. How much Work was done on it?
A: As per our guidelines, we are supposed to answer only first one question in case of multiple…
Q: 2. If a car engine delivers 50.0 hp of power, how long will it take for the engine to do 4.60 x 10^5…
A: Power is defined as the amount of energy transferred or converted per unit time. It is also defined…
Q: 6. A 0.150 kg baseball is moving 20.0 m/s. A bat hits it, doing 15.0 J of Work on it. What is the…
A: work energy theorem Wnet=change in kinetic energyWnet=∆KEWnet=KEfinal-KEinitialWnet=…
Q: An object in a horizontal surface was moved by applying a constant force (in Newtons) F = 8î + 5j.…
A: W=F⇀·d⇀=8i+5j N·9 m=72 J+0 J=72 J
Q: I drag a mass m = 21 kg in a straight line, along a horizontal surface, a distance D = 23 m .I drag…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: In a railroad classification yard, a 69-Mg freight car moving at 1.2 m /s at A encounters a retarder…
A: Given : m=69000 kg xA=3.9 m xC=0 m
Q: How much work is done (how much energy is required) to accelerate a 1987.5 kg car entering the…
A: According to work-energy theorem work done is equals to changes in between Final kinetic energy and…
Q: In 1990, Walter Arfeuille of Belgium lifted a 281.5 - kg object through a distance of 17.1cm using…
A: Given data: Mass (m) = 281.5 kg Height (h) = 17.1 cm = 0.171 m The speed of the object is constant…
Q: When the force is opposite the displacement of the object where it is acting, the force is doing A.…
A: Solution-: Since force is opposite the displacement of object then angle between force and…
Q: How much mechanical work is required to mov feet to your heart, approximately 1.0m higher? A) 1 J B)…
A: Given:- 13 ) The mass of the blood m = 1.0 kg [ Given ] The height h = 1.0 m [ Given ] Find:-…
Q: 2. A 59 kg person climbs up the stairs with a height of 5.5 m. a.How much work does the person do?…
A: Given , Mass of person( m) = 59 kg Height climbed by person (h)= 5.5 m
Q: Find the work done in joules by gravity as an object of the mass m=5 kg is raised up at constant…
A: Given : m = 5 kg h1 = 23 m h2 = 69 m g = 10 m/s2
Q: 8. A block is moving with 52.0 J of KE. A 12.0N force pulls the block straight forward for 3.00 m.…
A:
Q: An accelerating object of mass m=18 kg is fired with an initial speed v=9 m/s at a starting point.…
A:
Q: 1. If you pushed a 20 kg box across the floor for a distance of 60 m with a force of 15 N how much…
A: #1 Given data: The mass of box is m=20 kg. The distance traveled by the box is d=60 m. The force…
Q: 14) As the time needed to run up a flight of stairs deceases, the amount of work done by gravity; a)…
A: Given : As the time needed to run up a flight of stairs decreases, Find:- The amount of work done…
Q: What is the difference between when work is done by a system and when work is done on a system? a.…
A: Introduction :- Here we need to think about the concept of energy (internal energy) which depends…
Q: An object in a horizontal surface was moved by applying a constant force (in Newtons), F = 8î + 5ĵ.…
A: The force applied to the object is Object displaced distance to the right is d = 9 m
Q: 4. A 10kg object is travelling at a speed of 10m/s and then encounters a rough patch for 2m after…
A:
Q: Q1. 1 Jis the energy required to doof work. O 1N O 1J O 9.8 N O 98 J
A: From Energy conservation: Work Done = Potential Energy
Q: A car (m=1000 kg) is initially moving at a speed of 20 m/s (~45 mph) when the driver hits the brakes…
A: Work done is equal to change in kinetic energy W=∆EK=12mvf2-vi2=121000 kg0-20 ms2=-200000 J=-200 kJ
Q: 5. The diagram below shows points A, B, and C at or near Earth's surface. As a mass is moved from A…
A:
Q: What is the work done by the normal force FN ? A. F,dcos(30) B. F dcos(45) C. F dcos(60) D.…
A: Let FN denotes the work done by the normal force and d denotes the displacement of the block along…
Q: 18. A 100-g bullet is fired from a rifle having a barrel 0.600 m long. Choose the origin to be at…
A:
Q: A block is moving with 52.0 J of KE. A 12.0 N force pulls the block straight back, against the…
A: Given data: Initial Kinetic Energy (KEi) = 52.0 J Force (F) = 12.0 N, straight backward Displacement…
Q: 5. How much work is done (how much energy is required) to accelerate a 1987.5 kg car entering the…
A: Given: The mass of the car is 1987.5 kg. The initial speed of the car is 18.271125 m/s. The final…
Q: A block is at rest. A 40.0 N force directed 38.0° above horizontal pulls the block 8.00 m across…
A: Given data: Initial velocity (v0) = 0 m/s Force (F) = 40.0 N Angle (θ) = 38.0° Displacement (d) =…
Q: 3. A piece of shattered glass falls from the 82nd floor of a building. 600 feet above the ground.…
A:
Q: Children in a tree house lift a small dog in a basket 4.70m up to their house. If it takes 201J of…
A:
Q: Calculate the work done when a 5.0 kg bag of apples is lifted 1.2 m off the ground. 13 c)…
A:
Q: A 5-kg block slides () along a rough () horizontal surface. The coefficient of kinetic friction for…
A: Given : m = 5 kg μk = 0.40 v = 3.5 m/s
Q: How far must you stretch a spring with k = 1700 N/m to store 210 J of energy?
A: Data Given , Potential energy of spring ( P.E ) = 210 Jk = 1700 N/mWe know that , Potential energy…
Q: Which of the following is not an equation for getting work? Select one: a. W=Fd b. W=Fdcosθ c. W=N⋅m…
A:
Q: You give a 5.0 kg box a quick shove up a ramp. It reaches a vertical height of 3.0 m before…
A: m = 5 kg h = 3 m vf = 0 m/s (Eth)f = 100 J g = 10 m/s2
Q: A 1000 kg car moves with a speed of 20 m/s. Suddenly the driver speeds up to 30 m/s, what is the…
A:
Q: A cheetah can accelerate from rest to 7.4 m/s (about 18 m/h) in 1.8 seconds. How much average power…
A:
Q: If it requires 6.0J of work to stretch a particular spring by 2.0 cm from its equilibrium length,…
A:
Q: Question 9 What does it mean when an object has positive work done on it by a force? Energy is…
A: In physics, work is defined as the amount of energy transferred to or from an object by a force…
Q: 2m Using this force, calculate how much work Slim Jim does to lift the object. Force of weight =mg…
A:
Q: A pitcher throws a 0.186-kg baseball, and it approaches the bat at a speed of 56.6 m/s. The bat does…
A:
Q: A 700-kg car accelerates uniformly from 3 m/s to 8 m/s. The work done on the car (in kJ) is: O a…
A: Given:- mass of car = 700 Kg vi = 3m/s vf = 8m/s g= 9.8 m/s2
Q: work done by the work done by a conservative force is NOT true, if any? a.All of the above…
A:
Step by step
Solved in 2 steps