Which one of the diagrams could depict an object moving with constant speed and constant direction? Note: you will have to explain your answer in the NEXT question O 15 N 25 N 25 N 25 N 20 N 25 N 25 N 20 N 25 N O All of these O None of these
Q: The Moon has instantaneously stopped its orbital motion and its rotation, and was at rest at…
A: (a) The acceleration of the Moon at the moment its orbital motion stops can be determined as…
Q: A coil spring which has a normal length of 13 cm is stretched 2.5 cm by a force of 34 N. How much…
A: Finding spring constant K K=F/(elongation) elongation in 1st case=2.5 cm F=34 N K=34/2.5 = 13.6…
Q: Constants The potential energy of two atoms in a diatomic molecule is approximated by U (r) = a/r12…
A: Dear student, "Since you have posted a question with multiple sub-parts, we will solve first three…
Q: A body does 19 Joules of work in 5 seconds . What is it's power ?
A:
Q: The 85 kg man pushes against a stationary wall with a force of 250 N for 30 seconds. How much work…
A: Work is basically the dot product between the force and the displacement of the object. The formula…
Q: Assuming no friction, calculate the speed at point 3. Express your answer to two significant figures…
A: Given:- The roller-coaster car shown in the figure as Find:- a) Calculate the speed at point 2…
Q: L Which of the following is true? 0 kxk=1 O kxk=2 jxk=i Ok+k=j
A: According to question we need to choose correct option.
Q: A large hoist is lifting a 2000 kg automobile. There is a gauge on the hoist that displays its power…
A:
Q: Q2(Hw) In two Wattmeter method, iff W-120.6W W2%=220,5W, Calculate the load p.f.
A: The phase angle (lag) in two wattmeter method is given by : Putting values :
Q: A 6kg bowling ball is rolling with a velocity of 3 m/s. What is the kinetic energy of the bowling…
A: Given: Mass of ball m = 6 kg, Velocity v = 3 m/s. Required : Kinetic energy of the ball (K). Kinetic…
Q: Use Power and Kinetic Energy (PΔt = ΔK). A new sports car can accelerate from 0 to 96 kph in 6.5 s.…
A: Write the expression for the relationship between the power and the kinetic energy, and solve for…
Q: How much work is done in lifting a 100-kg load of bricks to a height of 30 m on a building under…
A: Given that-Mass, m=100 kgHeight, h=30 mWe know that,Acceleration of gravity, g=9.8m/s2
Q: 500 joules of work was done in 10 seconds, the power used was A. 0.025 watts B. 0.025 N C. 40 N D.…
A: Given value--- work = 500 J. time = 10 sec. We need to find--- Power ?
Q: By converting the power of loudspeaker,3700 000 Watt into kilowatt, we get
A: Power is defined as the ratio of work done and the unit time. It is generally represented by the…
Q: 2. A long thin rod of length L lies along the r axis. The end points of the rod are at I = 0 and r'…
A: Given: The total length of rod is L. The linear mass density of rod is λ. The distance of point P…
Q: The dimensional formula of kinetic energy is O a. M L^2 T^-1 O b. M L^2 T c. M L^2 T^-2 d. ML T^-2
A:
Q: A spring has a spring constant K of 94 N/m. How much must this spring be compressed, in mm, to store…
A: GivenSpring constant (k) = 94 N/mPotential energy (U) = 111 Joules
Q: 9. A compound wound spring has a spring constant k=2*x^2 + 18*x. It is compressed x-0 to x-0.8…
A: “Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: how much work is required to increase a 1200 kg car's speed from 35 mph to 65 mph? how many J
A: The car's mass is, m=1200 kg The initial speed of a car is, u=35 mph=35×0.447 m/s=15.645 m/s The…
Q: Find the scalar product of the vectors in the figure below, where 0 119° and F = 33.5 N. %3D 132°…
A: F = 33.5 N d = 17.3 cm= 0.173 m Angle between both the vectors = 19 degree
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: A ramp with a 155 N box is on a ramp. A for force F causes the box to slide from point A to point B.…
A:
Q: There are many levers in the human but the most common one is 3rd 2nd 1st
A:
Q: 4. An object is released from rest at X and slides to Y. The vertical distance between X and Y is 10…
A:
Q: Question 7 A 74 kg man climbs a flight of stairs 12 m high in 30 s. Ho
A:
Q: One watt-hour is equivalent to: A. 6.3 x 103 J B. 6.3 x 10-7 J C. 3.6 x 103 J D. 3.6 x 10-3 J
A: Watt is the unit of power, and hour is the unit of time. Since power is the ratio of energy and…
Q: An object with m= 27 g is hanging, without moving from a vertical spring extended by 19 cm.…
A:
Q: A model train powered by an electric motor accelerates from rest to 0.640 m/s in 22.0 ms. The total…
A: Given Information,Initial Velocity u=0Final Velocity v =0.64 m/stime(t) = 22 ms = 22×10-3…
Q: A radio-controlled car powered by an electric motor accelerates from rest to 0.600 m/s in 22.0 ms.…
A: Solution: Given Values, Initial Velocity (u) =0 m/s (since, it starts from rest)Final Velocity (v)…
Q: 1. The Washington Monument is 555 feet tall. A. If 1 meter = 3.28 feet, what is the height of the…
A: The height of the Washington monument is 555 feet, and 1 meter=3.28 feet The nickel has a mass of…
Q: Q1/ Derive the power (watt) into its tlhe basic S.I mits?
A: Power = workdone/time
Q: what is one netwon-meter equivalent to? 1. kilowatt * hour 2. watt * sec 3. joule/sec 4. kg *…
A: The newton-metre N·m is a unit of torque in the SI system. One newton-metre is equal to the torque…
Q: A. Suppose you lift a 15 kg box by a height of 1.0 m. How much work do you do in lifting the box?…
A: (a) The work done in lifting the box is
Q: A body does 26 Joules of work in What is it's power? 4 seconds.
A: Given data : Work done = W Time Taken = t To find :…
Q: How many watts of power does this car model have?
A: 1 Horsepower =746 Watt
Q: &17 www R₁ R₁ ww i₁ a iz R₂ b E2 i2 R₁ ܕܐ 2 82 R₁
A:
Q: what is horsepower
A: Horsepower is a unit of measurement used for Power. In layman terms, it is the amount of power an…
Q: 2. Juanito, a Grade 9 student, lifts a 5 kg book from the floor into a cabinet that is 3.2 m high…
A:
Q: Q36. Alamp consumes 1000 J of energy in 10 s, what is its power? O 100 W O 1000 W O 100000W 1kW
A: Given that:- Energy=1000joule Time=10sec
Q: 10. constant a - B 100 g 50g
A: Given, block diagram of A & B To draw FBD's of A & B , find which exerts more force or…
Q: Mark en John laai identiese kaste op die bak van 'n vragmotor. Alex lig sy kabinet reguit op vanaf…
A: Work: The work done by a force is equal to the product of the force and the displacement in the…
Step by step
Solved in 2 steps with 2 images