Lab 4 -EdwardsA (1)

A rocket with mass 4.00x103 kg is in a circular orbit of radius 7.30x10 m around the earth. The rocket's engines fire for a period of time to increase that radius to 8.80x106 m, with the. orbit again circular. What is the change in the rocket's kinetic energy? Does the kinetic energy increase or decrease? Express your answer with the appropriate units. Enter positive value if the kinetic energy increases and negative value if the kinetic energy decreases. AK = Value Submit Request Answer Part B What is the change in the rocket's gravitational potential energy? Does the potential energy increase or decrease? Express your answer with the appropriate units. Enter positive value if the gravitational potential energy Increases and negative value if the gravitational potential energy decreases. AU= Value 6 Units Submit Request Answer Units ?

1) Based on your answer above, create a calculated column(USED THE TABLE PROVIDED BELOW) in your data table so that you create a linear relationship. Use the linear regression tool to find the equation for your relationship. Write your equation in the space below, (HINT)  your equation should show velocity(v), as a function of release height(h), . So it should be of the form v(h) 2) Are your results consistent with the Work-Kinetic Energy Theory? Explain. (HINT) Recall the Work-Kinetic Energy Theory: W=K

TION 24 Steel ball with radius of 0.09 m lays on a bottom of the lake 5 m deep. What work is needed to lift the ball to the surface of 3. the lake? Density of steel is 7860kg/m. The volume of a sphere is Use g = 9.8 m/s< Calculate answer to two decimals. %3D

The tank shown is full of water. Given that water weighs 62.5 lb/ft and R= 9, find the work required to pump the water out of the tank. Rft hemisphere Select the correct answer. 1) 321,061 ft-lb 2) 322,062 ft-lb 3) 322,082 ft-lb 4) 321,952 ft-lb 5) 321,062 ft-lb

A bicycle rider going 12 m/s approach a hill. Their total mass is 63kg. If the rider coasts up the hill without pedaling , how high above its starting level will the bicycle be when it finally rolls to a stop? Answer in meters

A weight lifter lifts a 380-N set of weights from ground level to a position over his head, a vertical distance of 2.40 m. How much work does the weight lifter do, assuming he moves the weights at constant speed? My answer was 855 This was my feedback Please fix this Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. J

Answer the question in FULL details. Show ALL your steps and work in your calculations. Answer in complete sentences and therefore statements.

You lift your 8.4 kg back pack off your bedroom floor and place it on your desk. If your desk is 2.7 m high, how much work have you done? (Answer to 1 decimal place) Your Answer: Answer units

Match each unit with the physics concept it represents. force а. Newtons work b. watt mechanical advantage с. percent efficiency d. no units kg •m power е. momentum f. joules

Work done in a system is ___ a) The measure of energy change b) The measure of useful work c) The measure of displacement d) The measure of force

Chapter 6, Section 66, Question 007 A spring enerts a farce of 24 N when e is sorenched 03m beyond its natural length. How much work is regured to seretch the spring 0.6 m beyond ts natural keng? Enter the exact answer exact umber, no tolerance Click you would ke to Show Work for this questione Oeen Shanok

OBJECTIVE: Determine how physical work is related to the time to walk and hurry up a flight of stairs Determine how weight is related to physical work Determine how power is related to physical work Determine how time is related to power.   INSTRUCTIONS: Measure the vertical distance from the ground floor to the landing and from the landing to the 1st floor as shown below (convert to feet). Record this value on the data sheet, column B.  Note:  Your stairs might not have a landing – that’s ok.  Just measure the vertical height from the bottom to the top of the stairs.   Record your weight (pounds) in column A of the data sheet. Multiply column A and column B.  Record this value in column C. Measure the time it takes to walk (at a normal pace) up the stairs from the ground floor to the first floor – use the hand rail for support.  Measure 3 times and calculate the average time.  Record these values in column D. Measure the time it takes to briskly walk (not run) up the stairs…

Solve the following problems. Show computations and box the final answer. 1. A force of 3N acts through a distance of 12 m (parallel to the force). Find the work done. 2. A block of mass 10 kg is pulled 5 m upward in 1.5 seconds. Compute the work done. 3. Find the work done by a 2.0 kg load moved at a distance of 1 m horizontally.

Physics Modern Physics 1 please answer with work and explanation Thank you!

A 9,248 Watt crane is lifting a load with constant speed of 0.3 m/s . What is the mass of the load? Use g = 9.8 m/s ^ 2 Calculate answer to one decimal

Express your answers without rounding off and without scientific notation unless indicated otherwise. Do not include the units. A 0.188-kg ball is thrown upward with an initial speed of 20 m/s, Calculate the gravitational potential energy of the ball at the maximum height.

equation: ME = KE + PE an object has potential energy of 1265 joules and a mechanical energy of 1575 joules. What is kinetic energy? Show how you got your answer and put the units in your final answer.

Define work (words and equations, include units)?

A 10,040 Watt crane is lifting a load with constant speed of 0.3 m/s. What is the mass of the load? Use g = 9.8m/s2   Calculate answer to one decimal.

Assume that it takes a net work of W to give an object a speed v and kinetic energy KE, starting from rest. What would be the object's kinetic energy (in terms ofKE) if a net work of 4.8xW to the object (again starting from rest)? We are asking how many KE's the new kinetic energy would be. If the new kinetic energy is nX KE, just enter n using one decimal place! Add your answer

01: Suppose a force F proportional to Energy; Velocity; and time. Find the formula of the force equation using dimensional analysis. 02: chose the correct answer: (show your answer) A. How much time will be required to perform 520 J of work at the rate of 0.027 hp? (a) 24s (c) 20 s (d) 26 s (b) 16s B. A students caries a bag weighing 11.025 lbm from the ground floor to his class on the first floor that is 78.74 in high. The work done by the boy is (a) 1 J (c) 100 J (d) 1000 J (b) 10 J C. The potential energy of a system increases, if work is done (a) by the system against a conservative force (b) by the system against a non-conservative force (c) upon the system by a conservative force (d) upon the system by a non-conservative force

A uniform chain 24 m long and with mass 26 kg is hanging from the top of a building 24 m high. If a bucket filled with cement of mass 55 kg is attached to the end of the chain, how much work is required to pull the bucket and chain to the top of the building? (Use g = 9.8 N/kg.) (Use decimal notation. Give your answer to one decimal place.) J

Billy hung a 2.0 kg mass from a spring and lowered it gently until it was hanging at rest. The spring stretched 13 cm from its highest point to where it hung at rest. Please help me calculate the spring constant, k, of Billy's spring. Thank you

Problem 2  A rectangular tank that is 88 feet long, 33 feet wide, and 1515 feet tall is filled with a liquid that has a density of p pounds per cubic foot. If a spout is connected to the top of the tank, how much work will it take to pump all of the liquid out of the tank through the spout? Work= ____________ft-lb How much work will it take to pump all of the liquid out of the tank through a spout that is T feet above the top of the tank? Work= ____________ft-lb Answers should be in terms of p and T.

ACTIVITY 5 ODL STEM 12A The energy consumed by a o.8okW electric drill is 45 kJ in 1. _hour/s. What is the speed of a 3.okg object when its kinetic energy is 5.0J? Express your answer in ft/s (feet/second) 2. 3. What is the speed of the same object in #2 if the object has a weight of o.225|b? What is the ratio of energy consumption of a person who moves minimally when his/her requirement in moving is 8 MJ of energy per day. Express your answer in Watts. 4.

A truck pulls a sled loaded with different kinds of vegetables at a certain distance. Suppose the sled with the load had an initial speed of v1 = 3.72 m/s and the total mass of the sled with the load is m = 1,619 kilograms. If the total work done on the sled with the load is Wtot = 18,488.6 joules, what is its final speed? %3D Hint: Use work-energy theorem.

INSTRUCTIONS: Please write clearly and understandable way. Write all the corresponding Given with their corresponding symbols and units. Draw/Illustrate the diagram/circuit or drawings that is related to the problem, IF POSSIBLE, which is HIGHLY REQUIRED. Solve in step-by-step, no shortcut. Underline twice the Final Answer. PROBLEM: Find the work done against the force of gravity in moving a rocket weighing 8 tons to a height 200 mi above the surface of the earth. A. 16000/7 mi-tons B. 32000/21 mi-tons C. 64000/21 mi-tons D. 16000/21 mi-tons

Sam's job at the amusement park is to slow down and bring to a stop the boats in the log ride. If a boat with its riders has a mass of 1,200.0kg and is drifting in at 0.5m/s, how much work (in J) does Sam do to stop it?   Your Answer: Question 4 options:         Answer units