Homework Answers
Question 6 4 Consider the system of masses shown below with the given coordinate system. Where...
Question 6 4 Consider the system of masses shown below with the given coordinate system. Where is the center of mass? 2.0 m 0.5 m C 1.5 m 17m 1.4 m Question 7 4 pt: Person A ( m50kg)sits RIGHT opposite person B (m 65 kg) at opposite ends of a boat (m-100 kg) a distance d = 8 m. The two people get up and exchange seats. The boat rests on a frictionless horizontal surface. Which of the following...
The first 3 photos are true or false questions. Question 1 4 pts The total mechanical...
The first 3 photos are true or false
questions.
Question 1 4 pts The total mechanical energy of a particle in a Newtonian gravitational field can be NEGATIVE True False Question 2 4 pts Charles Coulomb was the first to measure the gravitational constant in Newton's Universal Law of Gravitation. True False Question 3 4 pts The period of a simple pendulum increases if the mass is increased. True False Question 4 4 pts Consider a single planet orbiting a...
Suppose a disk of radius R = 6 cm is rotating with an angular velocity w...
Suppose a disk of radius R = 6 cm is rotating with an angular velocity w = 7 rad/s. What is the speed of a point on the rim of the disk? O 168 m/s 42 m/s O 0.06 m/s 1.68 m/s O 200 m/s O 0.72 m/s O 0.42 m/s O 14 m/s 0.84 m/s
Question 9 8 pts Suppose a disk of radius R = 6 cm is rotating with...
Question 9 8 pts Suppose a disk of radius R = 6 cm is rotating with an angular velocity w = 7 rad/s. What is the speed of a point on the rim of the disk? O 14 m/s O 0.42 m/s O 0.84 m/s 42 m/s O 1.68 m/s 200 m/s 168 m/s 0.06 m/s 0.72 m/s
D Question 9 8 pts Suppose a disk of radius R = 6 cm is rotating...
D Question 9 8 pts Suppose a disk of radius R = 6 cm is rotating with an angular velocity w = 7 rad/s. What is the speed of a point on the rim of the disk? O 0.84 m/s O 0.06 m/s O 200 m/s O 1.68 m/s O 168 m/s ho O 0.72 m/s O 42 m/s O 0.42 m/s 014 m/s
Constants Part A Two people, one of mass 88 kg and the other of mass 65...
Constants Part A Two people, one of mass 88 kg and the other of mass 65 kg, sit in a rowboat of mass 61 kg. With the boat initially at rest, the two people, who have been sitting at opposite ends of the boat 3.3 m apart from each other, now exchange seats. How far will the boat move? Express your answer to two significant figures and include the appropriate units. dValue Units Submit t Ans Part B In what...
Consider a 3.0 kg mass on a spring on a horizontal surface. The spring has spring...
Consider a 3.0 kg mass on a spring on a horizontal surface. The
spring has spring constant 45 N/m. The static coefficient of
friction between the mass and the surface is µS = 0.30 and the
kinetic coefficient of friction is µK = 0.20
(a) When the mass is at x0 = 20 cm it is moving to the right
with speed 50 cm/s. Where does it first come to a stop? [Hint: use
energy considerations.]
(b) Once the mass...
. Question 9 4 pts Suppose a disk of radius R = 6 cm is rotating...
.
Question 9 4 pts Suppose a disk of radius R = 6 cm is rotating with an angular velocity w = 7 rad/s. What is the speed of a point on the rim of the disk? 200 m/s O 0.84 m/s 14 m/s - 168 m/s O 42 m/s O 0.42 m/s 1.68 m/s 0.06 m/s 0.72 m/s Question 10 4 pts Suppose the angular velocity of a disk of radius R = 6 cm increases uniformly from 14...
a 3.00 kg block moving 2.09 m/s right hits a 2.22 kg block moving 3.92 m/s...
a 3.00 kg block moving 2.09 m/s right hits a 2.22 kg block moving 3.92 m/s left. afterward, the 3.00 kg block moves 1.11 m/s left. find the momentum of the 2.22 kg block afterwards.
A 50-kg person was moving on a 20-kg movable platform on top of a smooth surface...
A 50-kg person was moving on a 20-kg movable platform on top of a smooth surface such as ice. A force of 70-N was applied to the platform and the platform responded instantly at 4 m/s/s. 2a Find the minimum force (magnitude and direction) that the person exerted on the platform. 2b Determine the dancer moving direction, right or left, as the platform responded instantly at 4m/s/s. Explain
Question 6 4 Consider the system of masses shown below with the given coordinate system. Where is the center of mass? 2.0 m 0.5 m C 1.5 m 17m 1.4 m Question 7 4 pt: Person A ( m50kg)sits RIGHT opposite person B (m 65 kg) at opposite ends of a boat (m-100 kg) a distance d = 8 m. The two people get up and exchange seats. The boat rests on a frictionless horizontal surface. Which of the following...
The first 3 photos are true or false
questions.
Question 1 4 pts The total mechanical energy of a particle in a Newtonian gravitational field can be NEGATIVE True False Question 2 4 pts Charles Coulomb was the first to measure the gravitational constant in Newton's Universal Law of Gravitation. True False Question 3 4 pts The period of a simple pendulum increases if the mass is increased. True False Question 4 4 pts Consider a single planet orbiting a...
Suppose a disk of radius R = 6 cm is rotating with an angular velocity w = 7 rad/s. What is the speed of a point on the rim of the disk? O 168 m/s 42 m/s O 0.06 m/s 1.68 m/s O 200 m/s O 0.72 m/s O 0.42 m/s O 14 m/s 0.84 m/s
Question 9 8 pts Suppose a disk of radius R = 6 cm is rotating with an angular velocity w = 7 rad/s. What is the speed of a point on the rim of the disk? O 14 m/s O 0.42 m/s O 0.84 m/s 42 m/s O 1.68 m/s 200 m/s 168 m/s 0.06 m/s 0.72 m/s
D Question 9 8 pts Suppose a disk of radius R = 6 cm is rotating with an angular velocity w = 7 rad/s. What is the speed of a point on the rim of the disk? O 0.84 m/s O 0.06 m/s O 200 m/s O 1.68 m/s O 168 m/s ho O 0.72 m/s O 42 m/s O 0.42 m/s 014 m/s
Constants Part A Two people, one of mass 88 kg and the other of mass 65 kg, sit in a rowboat of mass 61 kg. With the boat initially at rest, the two people, who have been sitting at opposite ends of the boat 3.3 m apart from each other, now exchange seats. How far will the boat move? Express your answer to two significant figures and include the appropriate units. dValue Units Submit t Ans Part B In what...
Consider a 3.0 kg mass on a spring on a horizontal surface. The
spring has spring constant 45 N/m. The static coefficient of
friction between the mass and the surface is µS = 0.30 and the
kinetic coefficient of friction is µK = 0.20
(a) When the mass is at x0 = 20 cm it is moving to the right
with speed 50 cm/s. Where does it first come to a stop? [Hint: use
energy considerations.]
(b) Once the mass...
.
Question 9 4 pts Suppose a disk of radius R = 6 cm is rotating with an angular velocity w = 7 rad/s. What is the speed of a point on the rim of the disk? 200 m/s O 0.84 m/s 14 m/s - 168 m/s O 42 m/s O 0.42 m/s 1.68 m/s 0.06 m/s 0.72 m/s Question 10 4 pts Suppose the angular velocity of a disk of radius R = 6 cm increases uniformly from 14...
A 50-kg person was moving on a 20-kg movable platform on top of a smooth surface such as ice. A force of 70-N was applied to the platform and the platform responded instantly at 4 m/s/s. 2a Find the minimum force (magnitude and direction) that the person exerted on the platform. 2b Determine the dancer moving direction, right or left, as the platform responded instantly at 4m/s/s. Explain
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