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
KengaRu [80]
2 years ago
8

A penny is dropped from the Statue of Liberty

Physics
1 answer:
Brrunno [24]2 years ago
5 0

Answer:

a) The velocity is 2.94m/s

b) 0.441

Explanation:

a) Assume gravity is 9.8m/s^2

Use the equation below to solve for the velocity at 0.30 seconds

vf=vi+at,

vf =unknown velocity  vi= initial velocity vi=0m/s  a= 9.8m/s^2 t=0.30seconds

Step 1: Substitute the variables with the knowns

vf=0m/s+(9.8m/s^2)*0.30seconds

Step 2: Solve

vf=2.94m/s

b)

Use the equation below to solve for the displacement at 0.30 seconds

x=vit+\frac{1}{2} at^{2}

Step 1: Substitute the same variables with the knowns

x=\frac{1}{2}*(9.8m/s^2)*(0.30seconds)^{2}

Note that vi*t=0 as vi=0m/s

Step 2: Solve

x=0.441m

You might be interested in
On his honeymoon, James Joule attempted to explore the relationships between various forms of energy by measuring the rise of te
Marizza181 [45]

Answer:

The maximum temperature rise = 0.047 °C

Explanation:

Potential Energy, P = mgh

Energy transfered, Q=mcΔT

Potential energy  = Energy transfered

mgh = mcΔT

gh = cΔT

ΔT = gh/c

ΔT = (9.81 * 20) / 4186

ΔT = 0.047 °C

8 0
3 years ago
We use towels to dry our body after taking a shower,why?<br><br>​
9966 [12]

Answer:

A wet body has a relatively high concentration of water. When this is transferred to a towel, the large surface area of the towel fabric distributes the water molecules over a much greater surface area, so the relative concentration is lower.

3 0
2 years ago
Bagaimana cara untuk melatih kemampuan melempar tangkap yang baik dalam bola basket​
anyanavicka [17]

Answer:

pergi ke pertandingan sepak bola dan amati

7 0
2 years ago
Which of these reactions is responsible for energy radiating from stars, including the Sun?
snow_tiger [21]

Answer: nuclear fusion

Explanation: give me a brainliest

3 0
2 years ago
Hi, I need some science help ASAP. Here's the question:
ch4aika [34]

Answer:

Mass of the box is 25kg

Explanation:

From Newton's second law of motion

Force= mass. acceleration

With the symbol

F=m.a

m=F/a      m=(50N)/(2m/s²)

                m=25kg

7 0
3 years ago
Other questions:
  • Which statement describes how echolocation and ultrasound imaging are the same?
    13·2 answers
  • Newton´s laws are based on which two concepts?
    8·1 answer
  • What type of radiation does nuclear fission produce?
    6·2 answers
  • The relationship between gas pressure and gas volume is described by ________.
    7·2 answers
  • A parachute on a racing dragster opens and changes the speed of the car from 95 m/s to 35 m/s in a period of 6.5 seconds. What i
    6·1 answer
  • A 50 kg boy runs and jumps with a forward velocity of 1.5 m/s into a 125 kg stationary boat.
    12·2 answers
  • A car travels 480 km in 12 hr. what is its velocity
    14·2 answers
  • If a substance has a temperature of absolute zero, what can you say about the kinetic energy of the substance’s particles?
    13·1 answer
  • ? Any idea on this I’m getting some mixed up
    7·1 answer
  • The frequency, or number of waves that pass a given point per second, of
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!