« previous next »

Author Question: A time-varying horizontal force F(t) = At4 + Bt2 acts for 0.500 s on a 12.25-kg object, starting at ... (Read 31 times)

tiffannnnyyyyyy

  • Hero Member
  • *****
  • Posts: 512
on: Jul 29, 2018
A time-varying horizontal force F(t) = At4 + Bt2 acts for 0.500 s on a 12.25-kg object, starting at time t = 1.00 s.
 
  In the SI system, A has the numerical value 4.50 and B has the numerical value 8.75.
  (a) What are the SI units of A and B?
  (b) What impulse does this force impart to the object?

Question 2

If the maximum possible accuracy in measuring the lifetime of a particle increases, the maximum possible accuracy in measuring its energy will
 
  A) increase.
  B) decrease.
  C) not be affected.


pallen55

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jul 29, 2018
Answer to Question 1

(a) A: N/s4 = kg  m/s6 , B: N/s2 = kg  m/s4 (b) 12.9 N  s, horizontally

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 war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

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?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Time Line of Human History From Upper Paleolithic Period to the Present Time Line of Human History From Upper Paleolithic Period to the Present
Before starting the process of adjusting the valves, look up the specifications and exact ... Before starting the process of adjusting the valves, look up the specifications and exact ...
Vertical and Horizontal Changes in Pressure Vertical and Horizontal Changes in Pressure
A typical reaction in which NAD+ acts as an oxidizing agent A typical reaction in which NAD+ acts as an oxidizing agent
Determined the magnitude of the magnetic force on the conductor. Determined the magnitude of the magnetic force on the conductor.
Jawad makes semi-annual contributions of $2000 starting on his 27th birthday. How much will he ... Jawad makes semi-annual contributions of $2000 starting on his 27th birthday. How much will he ...
Video: Structures that affect circulation - heart and MABP

For a complete list of videos, visit our video library