A Particle of Mass M Moving at 5

question 21

Multiple Choice

A particle of mass m moving at 5.0 m/s in the positive x direction makes a glancing elastic collision with a particle of mass 2m that is at rest before the collision. After the collision, m moves off at an angle of 45^o to the x axis and 2m moves off at 60^o to the x axis. The speed of m after the collision is

• A) 4.5 m/s.
• B) 2.5 m/s.
• C) 3.3 m/s.
• D) 1.8 m/s.
• E) 1.1 m/s.

Analyze how Piaget's theories apply to practical scenarios involving children's thought processes.

Evaluate the applicability and accuracy of Piaget's assessments of children's cognitive abilities based on recent research findings.

Apply the concept of object permanence in analyzing infant behavior.

Differentiate between sensorimotor and preoperational stages in terms of children's understanding and interaction with the environment.

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Definitions:

Interest Rate

The percentage of a sum of money charged by a lender to a borrower for the use of the money.

APR

Annual Percentage Rate, the yearly interest rate charged to borrowers, including fees and other costs, providing a complete picture of the loan's cost.

Periodic Rate

The interest rate for a specific period of time, often related to credit cards or loans, which can be monthly, quarterly, etc.

APR

Annual Percentage Rate, a measure of the cost of credit, expressing the yearly interest rate.