« previous next »

Author Question: What is the magnitude of the vertical-velocity component of the rock as it hits the ground? a. 8.81 ... (Read 120 times)

tichca

  • Hero Member
  • *****
  • Posts: 554
on: Jul 28, 2018
What is the magnitude of the vertical-velocity component of the rock as it hits the ground?
 a. 8.81 m/s
  b. 7.39 m/s
  c. 25.8 m/s
  d. 19.3 m/s

Question 2

A projectile is launched at an angle less than 30 and at speed v. Which will increase the projectile's range more, ignoring atmospheric drag?
 a. doubling the launch angle b. increasing the speed of launch by 50
  c. reducing the mass of the projectile d. launching on February 29th


IAPPLET

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 28, 2018
Answer to Question 1

c

Answer to Question 2

b


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Volcanoes Are Rock Factories Volcanoes Are Rock Factories
Connect a fused jumper wire to supply 12 volts to terminal 86 and a ground to terminal 85 of the ... Connect a fused jumper wire to supply 12 volts to terminal 86 and a ground to terminal 85 of the ...
Vertical and Horizontal Changes in Pressure Vertical and Horizontal Changes in Pressure
Rock Cornish Game Hen Rock Cornish Game Hen
Figure and Ground Figure and Ground
Introduction of Water to Mantle Rock Introduction of Water to Mantle Rock
Video: Protein Structure - Primary, Secondary, Tertiary and Quaternary

For a complete list of videos, visit our video library