A Spring-Powered Launcher Has a Spring with a Constant of 50.0

question 41

Multiple Choice

A spring-powered launcher has a spring with a constant of 50.0 N/cm. The launcher is prepared by compressing the spring by 5.00 cm. If the mass of the projectile is 10.0 grams, what is the speed of the projectile when it is launched?

• A) 65.4 m/s
• B) 52.8 m/s
• C) 45.7 m/s
• D) 40.5 m/s
• E) 35.4 m/s

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Definitions:

Prostaglandins

A collection of lipid-based substances that possess a wide range of effects similar to hormones in animals.

Seminal Vesicles

(1) In mammals, glandular sacs that secrete a component of semen (seminal fluid). (2) In some invertebrates, structures that store sperm.

Spermatogenesis

The process by which spermatozoa are produced from male primordial germ cells by way of mitosis and meiosis, occurring in the testes.

Ejaculatory Duct

A short duct that passes through the prostate gland and opens into the urethra; receives semen from the vas deferens.