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
geniusboy [140]
3 years ago
13

Find the velocity of an object dropped from a height of 300 m at the moment it hits the ground?

Physics
1 answer:
Maurinko [17]3 years ago
7 0
G (gravity) = 9.81 M/s/s x = 300m v = Square root of (2 x 9.81 x 300) 
V = sq rt of 5886 
V = 76.72 m/s 

You might be interested in
True or false cold air can hold more moisture than warm air
agasfer [191]
It is true
I hope this helps
5 0
3 years ago
an ice sheet 5m thick covers a lake that is 20m deep. at what is the temperature of the water at the bottom of the lake?
muminat

Answer:

4°C

Explanation:

Water is densest at 4°C.  Since dense water sinks, the bottom of the lake will be 4°C.

6 0
3 years ago
If the potential difference across the bulb in a camping lantern is 9.0 V, what is the
Gre4nikov [31]

Answer:

9V

Explanation:

The potential difference across the terminal as the same and thats because we are assuming that the source has no internal resistance.

Internal resistance are usually little resistances in the supply.

4 0
3 years ago
A woman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. The boo
In-s [12.5K]

Answer:

Explanation:

In order to solve this problem we need to make a free body diagram of the book and the forces that interact on it. In the picture below you can see the free body diagram with these forces.

The person holding the book is compressing it with his hands, thus exerting a couple of forces of equal magnitude and opposite direction with value F.

Now the key to solving this problem is to analyze the equilibrium condition (Newton's third law) on the x & y axes.

To find the weight of the book we simply multiply the mass of the book by gravity.

W = m*g

W = 1.3[kg] * 9.81[m/s^2]

W = 12.75 [N]

7 0
3 years ago
Compute the density in g/cm^3 of a piece of metal that had mass of 0.485 kg and a volume of 52cm^3
steposvetlana [31]

Answer:

9.3 g/cm³

Explanation:

First, convert kg to g:

0.485 kg × (1000 g / kg) = 485 g

Density is mass divided by volume:

D = (485 g) / (52 cm³)

D = 9.33 g/cm³

Rounding to two significant figures, the density is 9.3 g/cm³.

8 0
3 years ago
Other questions:
  • For each of the motions described below, determine the algebraic sign (+, -, or 0) of the velocity and acceleration of the objec
    14·1 answer
  • In Hooke's law, what does k represent?
    11·2 answers
  • Rocks A and B are located at the same height on top of a hill. The mass of rock A is twice the mass of rock B. How does the pote
    8·1 answer
  • A 112 g hockey puck sent sliding over ice is stopped in 16.8 m by the frictional force on it from the ice. (a) If its initial sp
    7·1 answer
  • g Suppose that you charge a 3 F capacitor in a circuit containing eight 3.0 V batteries, so the final potential difference acros
    5·1 answer
  • an object that is 8 cm tall is located 2.5 m in front of a plane mirror. The image formed by the mirror appears to be. Find di a
    15·1 answer
  • Circle the larger unit:
    15·1 answer
  • The moon Phobos orbits Mars
    11·1 answer
  • 3. Two bullets have masses of 0.003 kg and 0.006 kg, respectively. Both are fired with a speed of 40.0 m/s.
    6·1 answer
  • Which of the following is NOT a product of science?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!