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
matrenka [14]
3 years ago
9

How fast would a(n) 74 kg man need to run in order to have the same kinetic energy as an 8.0 g bullet fired at 370 m/s?

Mathematics
1 answer:
beks73 [17]3 years ago
4 0
Kinetic energy, KE = 0.5 mv^2 Where m is the mass V is the velcocity  
First calculate the kinetic energy of the bullet  
Ke = 0.5(0.008 kg) ( 370 m/s)^2
Ke = 547.6 J  

547.6 J = 0.5( 74 kg) v^2
<span>V = 3.85 m/s</span>
You might be interested in
I can't solve this equation pleas help!x^2+2x+8=0
tiny-mole [99]
x^2+2x+8=0\\&#10;x^2+2x+1+7=0\\&#10;(x+1)^2=-7\\&#10;x+1=-\sqrt{-7} \vee x+1=\sqrt{-7}\\&#10;x=-1-\sqrt7 i \vee x=-1+\sqrt7 i
8 0
3 years ago
The school newspaper surveyed 100 commuter students and asked two questions. First, students were asked how many courses they we
Vladimir79 [104]

Answer:

Number of courses would best be considered a discrete variable and drive time would be considered a continuous variable.

Step-by-step explanation:

Discrete variable:

Countable amounts(0, 1, 2, 3,...)

Continuous variables:

Can be decimal values.

In this question:

The number of courses is a countable amount(0,1,2,3,...), you cant take half a course, for example, so it is discrete. Otherwise, drive time accepts half minutes, for example, 10.5 minutes, so is continuous.

Number of courses would best be considered a discrete variable and drive time would be considered a continuous variable.

7 0
3 years ago
Simplify the expression:<br> 25 - 3(5x - 6) - 22x
LenKa [72]

Answer:

− 37  x+ 43

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
IF:
castortr0y [4]
So they go up and first they double then triple etc do the answer would be 3050
4 0
4 years ago
Simplifying trigonometric expressions help?
Studentka2010 [4]
7.

\dfrac{\sin\theta\cdot\cot\theta}{\tan\theta\cdot\cos\theta}=\dfrac{\sin\theta}{\cos\theta}\cdot\dfrac{1}{\tan\theta}\cdot\cot\theta=\tan\theta\cdot\dfrac{1}{\tan\theta}\cdot\cot\theta=\boxed{\cot\theta}

8.

\dfrac{\cot\theta}{\cos\theta}\cdot\dfrac{\sin\theta\cdot\cos^2\theta}{1-\cos^2\theta}=\dfrac{\cot\theta}{\cos\theta}\cdot\dfrac{\sin\theta\cdot\cos^2\theta}{\sin^2\theta}=\cot\theta\cdot\dfrac{\cos\theta}{\sin\theta}=\cot\theta\cdot\cot\theta=\\\\\\=\boxed{\cot^2\theta}
4 0
3 years ago
Other questions:
  • Which are the side lengths of a right triangle? Check all that apply. 3, 14, and StartRoot 205 EndRoot 6, 11, and StartRoot 158
    14·2 answers
  • Find the volume of a right circular cone that has a height of 9.6m and a base with a diameter of 2.9m. Round your answer to the
    12·1 answer
  • What is 89486 to the nearest hundred
    7·2 answers
  • Simplify 8 -2/3 please (leave as fraction)
    10·2 answers
  • Can someone help me?!?! Thanks :))
    9·2 answers
  • Which options explain reasons that the military was able to take over the government of Japan in the early 1930s?
    10·1 answer
  • You roll two dice (each die has six sides). What is the probability that you won't roll a 1 or a 6 on either die?A) 11.1%B) 66.7
    12·1 answer
  • 45 centimeters is equal to how many inches
    8·2 answers
  • WHAT IS THE ANGLE MEASUREMENTS?? AND TELL ME HOW YOU GOT IT.
    14·1 answer
  • 5/6 + (-4/9) - (-2), is this right??
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!