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
Sladkaya [172]
2 years ago
7

A stone of mass 5g is projected with a rubber catapult. if the catapult is stretched through a distance of 7cm by an average for

ce of 70 North, calculate the instantaneous velocity of the stone when released ​
Physics
1 answer:
weqwewe [10]2 years ago
4 0

Explanation:

solution: mass m = 5g = 0.005kg; extension e = 7cm = 0.07m; force f = 70 N; velocity = ?; using: work done in elastic material w = 1/2 fe = 1/2 ke2 = 1/2 mv2 - the kinetic energy of the moving stone. 1/2 fe =...

You might be interested in
A force of 150 N is applied to a 25 cm- piston in a hydraulic machine. What is the area
maxonik [38]

Answer:

8.3 cm^2

.................

6 0
3 years ago
What is NOT a principle of genetics?
timurjin [86]

The recessive trait will always show up

3 0
3 years ago
Read 2 more answers
Could anyone help with this question I do
ra1l [238]
<span>which of those can we not get back once it has been used, the answer is oil or petroleum</span>
8 0
3 years ago
Read 2 more answers
Suppose a tidal basin is 6 m above the ocean at low tide and that the area of the basin is 5×107 m2. Estimate the gravitational
Neko [114]

Answer:

Potential energy will be 176.58\times 10^{11}j          

Explanation:

We have given the height of the basin is h = 6 m

Area of the basin A=5\times 10^7m^2

Volume V=area \times height=5\times 10^7\times 6=30\times 10^7m^3

Density \rho =1000kg/m^3

We know that mass is given by m=\rho V=1000\times 30\times 10^7=3\times 10^{11}kg

We know that potential energy is given by E=mgh=3\times 10^{11}\times 9.81\times 6=176.58\times 10^{11}j

3 0
3 years ago
A soccer ball is moving horizontally at a speed of 4.0 m/s. It then undergoes a constant acceleration. After 8.00 s, the ball is
CaHeK987 [17]

Answer: 0.0 m/s

Explanation

8 0
3 years ago
Other questions:
  • 4. Ron and Hermoine are fighting over the Monster book of Monsters and they are both pulling on the book with a force of 14 N (e
    10·2 answers
  • After six half-lives, what percentage of a radioactive sample will remain?
    11·2 answers
  • A mineral's chemical composition and crystal structure help determine it's ___________.
    11·1 answer
  • For metalloids on the periodic table, how do the group number and the period number relate?
    7·2 answers
  • Joseph studied whether different materials can block certain electromagnetic waves by testing television reception in different
    8·1 answer
  • I AM THE RED BLOOD CELL STORY<br> My manufacturing process goes by a fancy name of _______.
    7·2 answers
  • The guy wires AB and AC are attached to the top of the transmission tower. The tension in cable AB is 9.1 kN. Determine the requ
    6·1 answer
  • How much charge passes through a wire in 4.0 s if the current is 3.0 A?
    6·1 answer
  • What is SI unit electric current ?​
    7·1 answer
  • Describe why using the simulation is a good method for studying projectiles. Clearly identify the error sources the simulation e
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!