2 years ago

A 50Kg girl jumps off a 5-meter-high diving board. What is her kinetic energy right before she

Physics

1 answer:

omeli [17]2 years ago

7 0

Answer:

D is the correct answer

Explanation:

Ek=m*g*h=50*9.8*5=2450

You might be interested in

A car from the beginning was traveling at 27.8m/s when he stepped on the brakes and stopped. According to the DMV, this would le

Yuliya22 [10]

Answer:

-6.44 m/s²

Explanation:

Given:

Δx = 60 m

v₀ = 27.8 m/s

v = 0 m/s

Find: a

v² = v₀² + 2aΔx

(0 m/s)² = (27.8 m/s)² + 2a (60 m)

a = -6.44 m/s²

3 0

2 years ago

An object buoyant force and wieght arent the smae thing

Alona [7]

I hope this is true or false

The answer would be TRUE

7 0

2 years ago

A belief, judgment, or way of thinking about something is called a(n) __________.

NISA [10]

That is an opinion. Opinion is not fact, although it can be based upon fact.

8 0

2 years ago

Read 2 more answers

A paleontologist estimates that when a particular rock formed, it contained 12 mg of the radioactive isotope potassium-40, which

leva [86]

Answer:

$t = 2.52 billion \:years$

Explanation:

As we know by radioactivity law

$N = N_o e^{-\lambda t}$

so here we will have

$N = 3 mg$

$N_o = 12 mg$

now we will have

$3 = 12 e^{-\lambda t}$

$\lambda t = ln 4$

now we also know that

$\lambda = \frac{ln2}{1.26 \times 10^6 yrs}$

$t = 1.26\times 10^6\times \frac{ln4}{ln2}$

$t = 2.52 billion \:years$

7 0

2 years ago

The amount of matter in an object is its _____.

Andrew [12]

The amount of matter in an object ismass....anything that occupies spaca and has weight is called matter.....

7 0

2 years ago