I have done the first part of this problem, but I cannot figure out the second part. I know there are several different answers already posted on Chegg for this particular problem with different acceleration and time, but I need this one specifically, with a step by step solution. Again...just PART B....the answer to Part A is 201.72

A helicopter carrying Dr. Evil takes off with a constant upward acceleration of 4.20 m/s2. Secret agent Austin Powers jumps on just as the helicopter lifts off the ground. After the two men struggle for 8.20 s, Powers shuts off the engine and steps out of the helicopter. Assume that the helicopter is in free fall after its engine is shut off and ignore effects of air resistance. What is the maximum height above ground reached by the helicopter? y=201.72

Powers deploys a jet pack strapped on his back 5.40 s after leaving the helicopter, and then he has a constant downward acceleration with magnitude 1.90 m/s2. How far is Powers above the ground when the helicopter crashes into the ground?

Use principles of physics to solve the problem and then verify your answer using the simulation. Assume that the acceleration due to gravity has a magnitude of g = 9.80 m/s2. If the range of the projectile is 5.96 m, the time-of-flight is T = 1.20 s, and air resistance is turned off, determine the following. A. What is the launch angle of the projectile? B. What is the initial speed of the projectile? C. Express the maximum height reached by the projectile in terms of g and T (the time-of-flight). h_max = "Please show detailed work" I am trying to figure out how to do this for future problems."

Two charges are placed on the x axis, +5 μC at the origin and −10 μC at x = 5 cm. (a) Find the electric field on the x axis at x = 3 cm. N C x̂ (b) At what point on the x axis is the electric field zero? cm

A person walks due north for 1 km then west for 1.5km then southwest for 2.5km. Draw each displacement then find the total displacement using head to tail method.

An Airplane flys southwest for 100km then east for 75km. What is the total displacement using component method of addition?

Please show all work

Two blocks of masses m and 3m are placed on a frictionless, horizontal surface. A light spring is attached to the more massive block, and the blocks are pushed together with the spring between them as shown in the figure below. A cord initially holding the blocks together is burned; after that happens, the block of mass 3m moves to the right with a speed of v with arrow3m = 1.70 m/s.

(a) What is the velocity of the block of mass m? (Assume right is positive and left is negative.) _____ m/s

(b) Find the system's original elastic potential energy, taking m = 0.380 kg. _____ J

(c) Is the original energy in the spring or in the cord? in the spring in the cord

(d) Explain your answer to part (c). .

(e) Is the momentum of the system conserved in the bursting-apart process? Yes No

(f) Explain how that is possible considering there are large forces acting. (g) Explain how that is possible considering there is no motion beforehand and plenty of motion afterward?

You are arguing over a cell phone while trailing an unmarked police car by 25.0 m; both your car and the police car are traveling at 110 km/h. Your argument diverts your attention from the police car for 2.0 s (long enough for you to look at the phone and yell,“I won't do that!”). At the beginning of that 2.0 s, the police officer begins braking suddenly at 5.20 m/s². (a) What is the separation between the two cars when your attention finally returns? Suppose that you take another 0.400 s to realize your danger and begin braking. (b) If you too brake at 5.20 m/s², what is your speed when you hit the police car?

The position of a 50 g oscillating mass is given by x(t)=(2.0cm)cos(10t−π/4), where t is in s. If necessary, round your answers to three significant figures. Determine:

amplitude= 2cm

period= 0.628s

spring constant =5 N/m

phase constant= -0.785 rad

find initial coordinate of the mass and the initial velocity.

A ring of charge with radius R = 2.5 m is centered on the origin in the x-y plane. A positive point charge is located at the following coordinates: x = 17.1 m y = 3.8 m z = -16.3 m The point charge and the total charge on the ring are the same, Q = +81 C. Find the net electric field along the z-axis at z = 4.5 m.

E_{net,x =}

E_{net,y =}

E_{net,z =}

there's a triangular prism with sides 8 cm, 10 cm, and 5 cm made out of material of n = 1.9 is submerged in an aquarium of water with n = 1.333. A ray of light strikes the 8 cm long side precisely in the middle and at 24 degrees relative to the normal. Work out all the angles that you need to work out and calculate the angle that the ray emerges at. (this might take the law of sines or the law of cosines to do.)

the explanation is perfectly understandable

please write in 2 paragraphs for each concepts.. " The yo-yo works on two principles, (i) conservation of energy and (ii) Torque equals the product of Mass moment of Inertia of the disk in yo-yo toy and it's angular acceleration".

When a person inhales, air moves down the bronchus (windpipe) at 15 cm/s. The average flow speed of the air doubles through a constriction in the bronchus. Assuming incompressible flow, determine the pressure drop in the constriction.

The electric field midway between two equal but opposite point charges is 567 N/C , and the distance between the charges is 16.0 cm.

a)What is the magnitude of the charge on each?

As defined in Chapter 7, the work done by a force on an object is equal to the force times the displacement times the cosine of the angle between the force and displacement vectors (W=F·d cos(θ)).
Suppose you are supporting a 1.56-kg block. What is the gravitational force (magnitude and direction) acting on the block?

If you lower the block a distance of 0.208 m, what is the work done by the gravitational force as you lower the block?

What is the value of the angle θ (in degrees – do not enter units)?

What is the change in the gravitational potential energy as you lower the block 0.208 m? (If the potential energy increases, the answer should be positive. If the potential energy decreases, the answer should be negative.)

Let’s switch gears and ask about the electrical force on a charged object. Suppose you have a region where the electric field has a magnitude of 23.1 N/C, the field points straight down, and the field is uniform (ie., the magnitude and direction are the same everywhere in this region). You place an object which has a charge of +0.251 C in this field. What is the magnitude and direction of the electric force acting on the object?

Suppose you lower the object a distance 0.208 m (in the same direction the field is pointing). What is the work done by the electrical force as you lower the block?

What is the change in electric potential energy as you lower the object 0.208 m? (If the electric potential energy increases, the answer should be positive. If the electric potential energy decreases, the answer should be negative.)

This discussion is closed.

A tower worker at the top of a wind turbine tower is letting down a small broken part of mass 4.3 kg tied to a practically massless rope.

The top of the tower is 14.4m above the ground, and the wind is blowing at 6.3 m/s at the top of the tower and decreases linearly with height to 1.7 m/s at the ground.

She is letting the rope slide thru her leather gloves at a rate of 0.30 m/s, and the friction between the rope and her gloves is making the gloves warm. What power is being

dissipated as heat where rope is sliding on the gloves?

In this problem, consider electrostatic forces only. In the figure, there is a particle of charge +Q at x = 0, and there is a particle of charge +16Q at x = +4a. You are going to bring in a third particle, with a charge of ?4Q, and place it at an appropriate spot on the x-axis. Use Q = 60.0 ? 10^?6C, and a = 40.0 cm. Also, use k = 9.00 ? 10⁹ N · m²/C².

(a)First, place the particle of charge ?4Q at the correct location so that the +Q charge experiences no net force because of the other two charged particles. In that situation, calculate the magnitude of the force that just one of the other charged particles exerts on the +Q charge.

(b)Instead, at what location on the x-axis would you place the particle of charge ?4Q so that the +16Q charge experiences no net force because of the other two charged particles? Note that we're looking for an answer in units of centimeters.

(c)Finally, place the particle of charge ?4Q at the correct location so that the ?4Q charge experiences no net force because of the other two charged particles. In that situation, calculate the magnitude of the force that just one of the other charged particles exerts on the ?4Q charge.