« 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 52 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?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Ground cover and colour such as shown here in (a) white sand Ground cover and colour such as shown here in (a) white sand
Listening to loud music with headphones or at rock concerts is a frequent cause of hearing loss amon Listening to loud music with headphones or at rock concerts is a frequent cause of hearing loss amon
Moderate to high physical activity in PE classes is one component of a successful prevention effort ... Moderate to high physical activity in PE classes is one component of a successful prevention effort ...
A typical low-side driver (LSD) which uses a control module to control the ground side of the relay ... A typical low-side driver (LSD) which uses a control module to control the ground side of the relay ...
Fall Velocity of Water Drops Fall Velocity of Water Drops
A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ... A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ...
Video: HIV replication/ Replication cycle of HIV

For a complete list of videos, visit our video library