« previous next »

Author Question: A projectile is launched with an initial velocity of 80 m/s at 30 above the horizontal. Neglecting ... (Read 249 times)

kfurse

  • Hero Member
  • *****
  • Posts: 590
on: Jul 29, 2018
A projectile is launched with an initial velocity of 80 m/s at 30 above the horizontal. Neglecting air resistance, what is horizontal component of the projectile's acceleration?
 
  A) 40 m/s2 B) 0 m/s2 C) 69 m/s2 D) 9.8 m/s2 E) 80 m/s2

Question 2

If you were to travel at speeds close to the speed of light, you would notice that your
 
  A) pulse has slowed.
  B) mass has increased.
  C) body has shortened along the direction of motion.
  D) All of the above.
  E) None of the above.


peilian

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

E


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

kfurse

  • Hero Member
  • *****
  • Posts: 590
Reply #2 on: Jul 29, 2018
Thank you!


peilian

  • Sr. Member
  • ****
  • Posts: 316
Reply #3 on: Jul 29, 2018
Always glad to help...


« previous next »
 

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Dependence of initial velocity on substrate concentration Dependence of initial velocity on substrate concentration
Stereo Image taken by NASA STEREO Probes launched in 2006; utilizing two Spacecrafts to image the Su Stereo Image taken by NASA STEREO Probes launched in 2006; utilizing two Spacecrafts to image the Su
Horizontal, sagittal, and coronal functional MRIs show areas of increased activity in the primary ... Horizontal, sagittal, and coronal functional MRIs show areas of increased activity in the primary ...
Calculate the velocity of the red rock after collision Angle measured counterclockwise from the ... Calculate the velocity of the red rock after collision Angle measured counterclockwise from the ...
A 2.8-kg tool can move on a perfectly smooth ramp that slants at 42° above the horizontal. ... A 2.8-kg tool can move on a perfectly smooth ramp that slants at 42° above the horizontal. ...
A 500-kg cannon fires a 4.0-kg projectile with a velocity of 500 m/s relative to A 500-kg cannon fires a 4.0-kg projectile with a velocity of 500 m/s relative to
Video: Homologous chromosomes during prophase I - Animation

For a complete list of videos, visit our video library