« previous next »

Author Question: A 2.0-kg ball is moving with a constant speed of 5.0 m/s in a horizontal circle whose diameter is ... (Read 51 times)

Ebrown

  • Hero Member
  • *****
  • Posts: 567
on: Jul 29, 2018
A 2.0-kg ball is moving with a constant speed of 5.0 m/s in a horizontal circle whose diameter is 1.0 m. What is the magnitude of the net force on the ball?
 
  A) 0 N
  B) 20 N
  C) 40 N
  D) 50 N
  E) 100 N

Question 2

A spaceship traveling at 0.50c away from Earth launches a secondary rocket in the forward direction at 0.50c relative to the spaceship. As measured by Earthlings, how fast is the secondary rocket moving away from Earth?
 
  A) 0.90c
  B) 0.50c
  C) 0.80c
  D) 0.70c
  E) c
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


joechoochoy

  • Sr. Member
  • ****
  • Posts: 306
Reply #1 on: Jul 29, 2018
Answer to Question 1

E

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Evidence that Light Travels at a Finite Speed Evidence that Light Travels at a Finite Speed
Direct thumb pressure along the tibialis anterior. Start at proximal end, moving about 1 inch at a ... Direct thumb pressure along the tibialis anterior. Start at proximal end, moving about 1 inch at a ...
Horizontal stroking of the abdomen. Place a hand on either side of the waist, fingers pointing away ... Horizontal stroking of the abdomen. Place a hand on either side of the waist, fingers pointing away ...
Hold baby’s feet and bend legs, moving knees into the abdomen/chest and then straighten. Repeat ... Hold baby’s feet and bend legs, moving knees into the abdomen/chest and then straighten. Repeat ...
Determining the order and rate constant of an irreversible first-order reaction Determining the order and rate constant of an irreversible first-order reaction
Ball Illusion Ball Illusion
Video: Uterine (menstrual) cycle - phases

For a complete list of videos, visit our video library