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
julsineya [31]
2 years ago
7

A small child gives a plastic frog a big push at the bottom of a slippery 2.0 meter long, 1.0 meter high ramp, starting it with

a speed of 6.0 m/s. What is the frog's speed as it flies off the top of the ramp?
Biology
1 answer:
lesya692 [45]2 years ago
8 0
First, let's find the angle of inclination using the tangent function.

sin θ = opposite/hypotenuse = 1 m/2 m
θ = 30°

Assuming the ramp is frictionless, the force balance is:
F = mgsinθ = ma
Cancelling out m,
a = gsinθ = (9.81 m/s²)(sin 30°) = 4.905 m/s²

Using the equation for rectilinear motion at constant acceleration,
x = v₀t + 0.5at²
2 m = (6 m/s)(t) + 0.5(4.905 m/s²)(t²)
Solving for tm
t = 0.297 seconds

Using the equation for acceleration:
a = (v - v₀)/t
4.905 m/s² = (v - 6 m/s)/0.297 s
Solving for v,
v = 7.46 m/s
You might be interested in
What are some facts about fertilization?
Shkiper50 [21]

Answer:

Internal Fertilization: Mammals,birds and reptiles in them the mode of fertilization is internal

External Fertilization: Amphibians and fishes used external fertilization.

Egg laying Animals;Birds,reptiles and some mammals platypus lays eggs.

Explanation:

Fertilization is a process in which a female egg (Ovum) and male egg (sperm) unite to form a zygote.A zygote is a fertilized egg which grows within an embryo.The process of fertilization is important in eukaryotes such as animals, humans,birds and plants. Fertilization divides a cell into many daughter cells by the process of mitosis and meiosis.It doubles the chromosome numbers.Fertilization are of two types internal and external.

8 0
2 years ago
Three discrete types of muscle fibers are identified on the basis of their size, speed, and endurance. Which of the following at
Tatiana [17]

Answer:

Long relaxing swim.

Explanation:

Muscle is one of the most important tissue of the body that helps in the control and the coordination of the body movements. Three different types of muscle are smooth muscle, cardiac muscle and skeletal muscle.

The red fibers are the slow twitch fibers that contains large amount of stored oxygen in their muscles. These fibers can generate ATP by the fat and the glycogen metabolism. This fiber will help the swimmers to obtain energy at the end of the race to overcome the oxygen deficiency.

Thus, the correct answer is option (C).

5 0
3 years ago
The variety of organisms within an ecosystem is characteristic of which type of diversity? a. Genetic diversity b. Ecosystem div
Brrunno [24]

Answer:

The answer is C. Species diversity or B. Ecosystem diversity everyone thinks it either those 2 nobody really knows.

7 0
3 years ago
Read 2 more answers
Differentiate between blood recipient and blood donor​
irakobra [83]

Answer:

A blood donor is a person who donates blood and a blood recipient is a person who receives donated blood.

Explanation:

5 0
3 years ago
Read 2 more answers
What does an inhibitor do ?
OLEGan [10]

Answer:

Enzyme inhibitors are molecules or compounds that bind to enzymes and result in a decrease in their activity. An inhibitor can bind to an enzyme and stop a substrate from entering the enzyme's active site and/or prevent the enzyme from catalyzing a chemical reaction. There are two categories of inhibitors.

Explanation:

I had to look this up lol. hope it helps tho!

7 0
2 years ago
Other questions:
  • How does the circulatory system interact with the digestive system
    8·1 answer
  • When a cells volume becomes to great for the surface area to maintain the cell will A) die. B) divide. C) grow. D) move.
    12·1 answer
  • Mutations can occur as a result of many factors, including ultraviolet light or environmental pollutants such as pesticides and
    14·2 answers
  • Archaeologists use radioactive decay of an isotope of the element ________ because it has a fairly short half-life and is found
    14·1 answer
  • Can anyone make sure theses answers are correct? it might help a lot. 15 pt!
    6·1 answer
  • Based on the diagram which statement describes sexual reproduction?
    10·1 answer
  • Which situation is an example of competition that could be found in the ocean?
    14·1 answer
  • Which would most likely be found as a petrified fossil form?
    11·2 answers
  • The inner planets are Mercury, Venus, Earth, and Mars. These four planets are small and solid and have few or no moons. All but
    8·1 answer
  • Excess tyramine caused by monoamine oxidase inhibitors (maois) can result in what?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!