Homework Answers
Add Answer to:
s odott gi Page 204 Practice Problem 7.10: 53 - O-TOUS Find the skateboard's speed at...
Page 206 Practice Problem 7.13: If the skateboarder's speed at the bo it would be without...
Page 206 Practice Problem 7.13: If the skateboarder's speed at the bo it would be without friction, how much boarder's speed at the bottom of the quarter-pipe is exactly half of what be without friction, how much work does the friction fore do? Answer: - 551J. 7.7 Conservative and N a tions 205 object Skateboarder on the quarter pipe again EXAMPLE 7.13 Skat Cential es than forces this example we will cale work done by a Bosco hoarder's speed at...
Page 204 Practice Problem 7.11: If the mass of the elevator (with four what should the...
Page 204 Practice Problem 7.11: If the mass of the elevator (with four what should the spring constant Answer: 2.18x10 N/m. a the spring constant be for a maximum compression of 3.00m? ! is equal to that EXAMPLE 7.11 Elevator safety (or not) to this exoblem we have to account for both gravitational potential energy and elastic potential energy. In a worst-case" design scenario, a 2000 kg elevator with broken cables is falling at 8.00 m/s when it first con...
Page 205 Practice Problem 7.12: If the 0.610 N force is removed when the glider reaches...
Page 205 Practice Problem 7.12: If the 0.610 N force is removed when the glider reaches the O. is removed when the glider reaches the 0.10 m point, at what distance from the starting point does the glider come to rest? Answer: EXAMPLE 7.12 Work and energy on an air track DH Video Tutor Solution Now let's revisit Example 7.8, adding a nonconservative force to the system. Suppose the glider is initially at rest at x = 0, with the...
A satellite of mass m 400 kg is observed with the initial speed v 3 km/s...
A satellite of mass m 400 kg is observed with the initial speed v 3 km/s at the initial altitude h 4000 km above the Earth's surface. The satelite descends in a free fall and hits the ocean with the final speed w. Which one of the followings statements is the correct form of the 프~ Problem 6(3 point ed push of what energy conservation in this process? these equations M stands for the mass of the Earth, and R...
physics
The sport of skateboarding provides an excellent example of the principle of Conservation of Energy. In particular, let us consider 'vert skateboarding' where a personrides the skateboard on a vertical ramp that forms part of a hemisphere referred to as a 'half-pipe.' It consists of the transition from the curved part to the flatand the vertical. Below is a schematic of a half-pipe with the 'vert'. The surface of the half-pipe and the material of the wheels on the skateboard...
EXAMPLE 7.9 Maximum height of a home-run ball imum height of a projectile launched with ORO...
EXAMPLE 7.9 Maximum height of a home-run ball imum height of a projectile launched with ORO Earlier in ample 3.5) we derived an exression for de m initial speed the initial angle ignoring air resistance Video Tutor Solut 2 Now let's derive this expression using a conservation of energy analysis. Final point Velve- SOLUTION SET UP There are no sonconservative forces the work done by gravity is accounted for in the potential energy terms. As shown in Figure 7.30, we...
Page 237 Practice Problem 8.9: Suppose we interchange the two gliders, making m= 0.30 kg and...
Page 237 Practice Problem 8.9: Suppose we interchange the two gliders, making m= 0.30 kg and m50Kg (We also turn them around so that the springs still meet.) If the initial speeds are the same as before, find the two final velocities. Answers:-3.0 m/s, 1.0 m.s. Answer a sto EXAMPLE 8.9 Elastic collision on an air track Video Tutor Solution Let's look at another collision between the air-track gliders of Examples 8.4 and 8.6. This time, we equip the gliders...
PROBLEM (a) Find the speed of the proton at x 0.0500 m if s released from...
PROBLEM (a) Find the speed of the proton at x 0.0500 m if s released from rest at x -2.00 cm in a constant electric field with magnitude 1.50 x 103 N/C, pointing in the positive direction. (b) Find the initial speed of an electron fired from x 2.00 cm given that its speed has fallen by half when it reaches x 0.120 m STRATEGY Apply conservation of energy, solving for the unknown speeds. Part (b) involves two equations: the...
Problem: Learning to fly In this example, we will apply conservation of energy, including potential energy,...
Problem: Learning to fly In this example, we will apply conservation of energy, including potential energy, together with Newton’s laws and the expression for the acceleration in the radial direction of an object moving on a circular path. A young fledgling bird of mass m is sat at the very top of a dome, which is circular in cross section of radius R. Starting with an initial velocity of zero, the bird starts to slide down the dome. There is...
PRACTICE IT Use the worked example above to help you solve this problem. A ball is thrown upward from the top of a building at an angle of 30.00 to the horizontal and with an initial speed of 1...
PRACTICE IT Use the worked example above to help you solve this problem. A ball is thrown upward from the top of a building at an angle of 30.00 to the horizontal and with an initial speed of 19.0 m/s. The point of release is h = 46.0 m above the ground. (a) How long does it take for the ball to hit the ground? 4.183 (b) Find the ball's speed at impact. 35.532 m/s (c) Find the horizontal range...
Page 206 Practice Problem 7.13: If the skateboarder's speed at the bo it would be without friction, how much boarder's speed at the bottom of the quarter-pipe is exactly half of what be without friction, how much work does the friction fore do? Answer: - 551J. 7.7 Conservative and N a tions 205 object Skateboarder on the quarter pipe again EXAMPLE 7.13 Skat Cential es than forces this example we will cale work done by a Bosco hoarder's speed at...
Page 204 Practice Problem 7.11: If the mass of the elevator (with four what should the spring constant Answer: 2.18x10 N/m. a the spring constant be for a maximum compression of 3.00m? ! is equal to that EXAMPLE 7.11 Elevator safety (or not) to this exoblem we have to account for both gravitational potential energy and elastic potential energy. In a worst-case" design scenario, a 2000 kg elevator with broken cables is falling at 8.00 m/s when it first con...
Page 205 Practice Problem 7.12: If the 0.610 N force is removed when the glider reaches the O. is removed when the glider reaches the 0.10 m point, at what distance from the starting point does the glider come to rest? Answer: EXAMPLE 7.12 Work and energy on an air track DH Video Tutor Solution Now let's revisit Example 7.8, adding a nonconservative force to the system. Suppose the glider is initially at rest at x = 0, with the...
A satellite of mass m 400 kg is observed with the initial speed v 3 km/s at the initial altitude h 4000 km above the Earth's surface. The satelite descends in a free fall and hits the ocean with the final speed w. Which one of the followings statements is the correct form of the 프~ Problem 6(3 point ed push of what energy conservation in this process? these equations M stands for the mass of the Earth, and R...
EXAMPLE 7.9 Maximum height of a home-run ball imum height of a projectile launched with ORO Earlier in ample 3.5) we derived an exression for de m initial speed the initial angle ignoring air resistance Video Tutor Solut 2 Now let's derive this expression using a conservation of energy analysis. Final point Velve- SOLUTION SET UP There are no sonconservative forces the work done by gravity is accounted for in the potential energy terms. As shown in Figure 7.30, we...
Page 237 Practice Problem 8.9: Suppose we interchange the two gliders, making m= 0.30 kg and m50Kg (We also turn them around so that the springs still meet.) If the initial speeds are the same as before, find the two final velocities. Answers:-3.0 m/s, 1.0 m.s. Answer a sto EXAMPLE 8.9 Elastic collision on an air track Video Tutor Solution Let's look at another collision between the air-track gliders of Examples 8.4 and 8.6. This time, we equip the gliders...
PROBLEM (a) Find the speed of the proton at x 0.0500 m if s released from rest at x -2.00 cm in a constant electric field with magnitude 1.50 x 103 N/C, pointing in the positive direction. (b) Find the initial speed of an electron fired from x 2.00 cm given that its speed has fallen by half when it reaches x 0.120 m STRATEGY Apply conservation of energy, solving for the unknown speeds. Part (b) involves two equations: the...
PRACTICE IT Use the worked example above to help you solve this problem. A ball is thrown upward from the top of a building at an angle of 30.00 to the horizontal and with an initial speed of 19.0 m/s. The point of release is h = 46.0 m above the ground. (a) How long does it take for the ball to hit the ground? 4.183 (b) Find the ball's speed at impact. 35.532 m/s (c) Find the horizontal range...
Most questions answered within 3 hours.
-
a
ball is thrown downward with velocity of 10m/s. calculate the final
velocity if it reaches...
asked 28 minutes ago -
How many grams of ice at -15°C must be added to 705 grams of
water that...
asked 1 hour ago -
2. Balance sheet
The balance sheet provides a snapshot of the financial condition
of a company....
asked 2 hours ago -
In week 1 of the chemical equilibrium experiment, you and your
lab team will create a...
asked 2 hours ago -
Identify and describe five (5) characteristics of a good KM
measurement system. Be sure to include...
asked 2 hours ago -
What are at least five (5) workplace wellness best practices for
a successful wellness program? Explain...
asked 2 hours ago -
A pharmaceutical company is testing a new drug. Of the 110
people that received the drug,...
asked 3 hours ago -
Which of the following is NOT a mechanism for gene
regulation?
a. Phase variation in DNA....
asked 3 hours ago -
Which of the following is being applied when, under certain
conditions, the value recorded for an...
asked 3 hours ago -
Describe the role of the three components of connective
tissue. In what ways does a connective...
asked 3 hours ago -
Excel spreadsheet
I am clueless when it comes to excel. I need to make a
spreadsheet...
asked 3 hours ago -
1. A beta-emitter would be safely stored by all of the following
except
a. wrapped in...
asked 3 hours ago