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
ozzi
3 years ago
12

Question part points submissions used as a science project, you drop a watermelon off the top of the empire state building, 320

m above the sidewalk. it so happens that superman flies by at the instant you release the watermelon. superman is headed straight down with a speed of 30 m/s. how fast is the watermelon going when it passes superman?
Mathematics
1 answer:
Nataly [62]3 years ago
8 0
We are given a watermelon dropped at free fall from a building 320 meters above the sidewalk. Superman is headed down at 30 meters per second. We are asked to determine how fast is the watermelon going when it passes Superman. To solve for the final velocity of the watermelon, we will use one of the kinematic equations (free fall):

vf = vi + a*t

where vf is the final velocity
            vi is the initial velocity, zero
            a is the acceleration, in this case, gravitational acceleration = 9.8m/s^2
            t is time

we also need to set-up another equation using the distance:

d = vf + vi / 2 * t

(1) 320 m = vf * t /2

(2) vf = 9.8 m/s^2 * t

From here, we have two equations and two unknown, thus we can solve the problem by substitution. 

<span />
You might be interested in
Cds are on sale, 3 for $27.00.<br>How much will 5 cds cost at the sale price?
steposvetlana [31]
27 divided by 3 = 9
9 times 5 = 45
7 0
3 years ago
Read 2 more answers
What is the slope of the line through -5,7 and -5,-8
makvit [3.9K]

Answer:

Undefined

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
At 8:00 A.M., the temperature is 53 °F. At 11:00 A.M., it is 69 °F.
NARA [144]
The average change per hour is B 40.7
3 0
2 years ago
PLZ HELP
Juliette [100K]

Answer:

<em>N = 1/2x + 6</em>

Step-by-step explanation:

We know that Jane has 6 more shoes than 1/2 of what Mercedes has. We can use this information to make an equation.

<em>N (or number of shoes Jane has) is equal to 1/2x (or the number of shoes Mercedes has) plus 6.</em>

When written out we get our answer of:

<em>N + 1/2x + 6</em>

3 0
3 years ago
Which of the following disjunctions is false ?
notsponge [240]
A disjunction is false if both parts of the disjunction are false; otherwise, it is true
----------------------------------------------
Choice A

4-3=2 is false
6*3=9 is false

both parts are false, so overall the entire disjunction is false
----------------------------------------------
Choice B

5*6=30 is true
3+4=7 is true

Neither part is false, so overall the entire thing is true
----------------------------------------------
Choice C

8+3=11 is true
5*4=23 is false

While second piece is false, the overall disjunction is true. The first part (true) makes the whole thing true.
----------------------------------------------
Choice D

7+6=13 is true
5*2=10 is true

Neither part is false, so overall the entire thing is true
----------------------------------------------
----------------------------------------------
In summary, we have

A. False
B. True
C. True
D. True

Making choice A the only answer that is false. So choice A is the final answer

7 0
3 years ago
Other questions:
  • There is 12/15 of a pizza left. How many 3/10 pieces can be made from the leftover pizza? Show work please!
    10·1 answer
  • Judy Garland Electronics operate on a net-profile rate of 20% on its printer cables. If the markup is $8.95 and the overhead is
    9·1 answer
  • Why is it preferable to measure a penny in millimeters rather than centimeters or meters?
    15·2 answers
  • The radius of a circle is 6mm. What is the area of the shaded portion of the circle.
    7·1 answer
  • A T-shirt makes wants to open his first store. If he chooses the store on Main Street, he will pay $640 in rent and will charge
    6·1 answer
  • Help me for brainliest answer
    11·1 answer
  • Skip drove 55.6 miles on Saturday, and 42 1/2 miles on Sunday. How many miles did he drive during the entire weekend?
    8·1 answer
  • Joey bought some fruit for $5 and three boxes of cereal. He spent $17 total. What was the price of each box of cereal?
    8·2 answers
  • 8/2(2+2) Hurry<br> Read comment
    7·1 answer
  • I reaalllly neeeed heeellllppppp brainleist to who gives the right answer
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!