1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
irina [24]
3 years ago
7

A parachute on a racing dragster opens and changes the speed of the car from 85 m/sec to 45 m/sec in a period of 4.5 seconds. Wh

at is the acceleration of the dragster?
Physics
1 answer:
Serggg [28]3 years ago
6 0
Acceleration is change is velocity over time. So the change in velocity is 40 and time is 4.5 sec. So the acceleration is 40/4.5=8.89 m/s^2
You might be interested in
The speed of the 2 kg cart after 5 seconds is ? cm/s.
motikmotik
The answer to this question is 1cm/s
3 0
3 years ago
Which of these is an example of a mechanical wave?
OLga [1]
Your answer is A, Ocean Waves- because A mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium. Ocean waves do just that :)
Hope this helps!!
6 0
3 years ago
A rug sits in a sunny place on the floor for a long time. Kiara thinks that light from the sun can cause the rug's color to fade
geniusboy [140]

Answer:

Yes! Light from the sun can affect the materials certain carpets are made out of. The usual effect being the dye in the carpet being "washed out" or "dried out" as the sun beams down on it. When this happens, the carpet will usually lose its color, causing it to fade.

3 0
3 years ago
Two 25.0N weights are suspended at opposite ends of a rope that passes over a frictionless pulley. What is the tension in the ro
goldenfox [79]

Answer:

tension in rope = 25.0 N

Explanation:

  • Two forces act on the suspended weight. The force coming down is the gravitational force and the upward force by the tension in the rope.
  • Since the suspended weight is not accelerating so that the net force will be zero. Therefore the tension in the rope should be 25 N.

       ∑F = F - W = 0

       so

       F = W

       so tension in rope = F  = T  = 25 N

8 0
3 years ago
Earth travels fastest in January and slowest in July. What is the most likely explanation for this?
Keith_Richards [23]

Answer:

Earth is nearest the Sun in July and farthest away in July.

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • A sample of fluorine-18 in a laboratory has an initial mass of 50mg.flourine-18 has a half life of 1.8 hours Calculate the amoun
    11·1 answer
  • An element's atomic number is the​
    6·1 answer
  • Carbon show some unique property name them name them​
    14·1 answer
  • Tính số phần trăm phân tử khí trong trọng trường của Trái Đất, có thế năng ep, lớn hơn động năng trung bình chuyển động tịnh tiế
    8·1 answer
  • Ummmm ya girl needs help
    10·2 answers
  • When a ball bounces back when you throw it at a wall, what occurs?
    11·2 answers
  • Which graph shows acceleration? A graph of position (meters) versus time (seconds) has a straight line running from 0 seconds 0
    13·2 answers
  • When are children MOST likely to begin using words to express meaning? A. before 12 months B. between 12 and 18 months C. betwee
    15·2 answers
  • A wolf spider runs 75 cm west, then turns and runs 50 cm south. Which choice gives the correct solution for the resultant? Quest
    14·1 answer
  • A block of ice is sliding down a ramp of slope 40 to the horizontal. What is the rate of acceleration of the block? Assume the f
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!