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
Butoxors [25]
2 years ago
11

A skydiver jumps out of a plane flying at an altitude of 5,500 meters. How fast is the skydiver going when they get to the groun

d ?​
Physics
1 answer:
andrey2020 [161]2 years ago
4 0

Answer:

2,500 feet (760 meters)

Explannation: <em>At about 2,500 feet (760 meters), the skydiver throws out a pilot chute, and it deploys the parachute. Its used to control the fall rate.</em>

You might be interested in
A weightlifter lifts a 1,250 N barbell 2 m in 3 s. How much power was used to lift the barbell?
OverLord2011 [107]
brainly.com/question/1478685 
5 0
3 years ago
Como foi a despedida do bilhete?​
Dmitrij [34]
Can you translate to english ?
8 0
2 years ago
A 40W lamp wastes 34 J of energy every second by heating its surroundings.
Artemon [7]

Answer:

15\%.

Explanation:

The efficiency of a machine is the percentage of energy input that was turned into useful energy.

The power rating of this lamp is 40\; \rm W (same as 40\; \rm J \cdot s^{-1},) meaning that 40\; \rm J of energy is supplied to this lamp every second.

The question states that 34\; \rm J out of that 40\; \rm J of energy input would be turned into heat, which is not useful energy output in this scenario. Assuming that all other forms of energy loss is negligible. The rest of the (40\; \rm J - 34\; \rm J) = 6\; \rm J of energy supplied to this lamp would be turned into useful energy output.

Thus, every second, this lamp would receive 40\; \rm J of energy input and would outputs 6\; \rm J of useful work. The efficiency of this lamp would be:

\begin{aligned}& \text{Efficiency} \\ =\; & \frac{\text{Useful energy out}}{\text{Total energy in}} \times 100\% \\ =\; & \frac{6\; \rm J}{40\; \rm J} \times 100\%\\ =\; &15\% \end{aligned}.

4 0
2 years ago
Which term describes a possible explanation of, or answer to, a scientific question that is based on prior knowledge or research
suter [353]
I think it would be called a hypothesis.
3 0
2 years ago
Read 2 more answers
The net force acting on an object equals the applied force plus the force of friction.
Georgia [21]

Answer:

False

Explanation:

The net force is equal to the applied force minus the force of friction. It is possible for friction to act in the same direction as an applied force, but that would mean there would have to be more than two forces acting on the object.

3 0
2 years ago
Other questions:
  • A helicopter (m = 3250 kg) is cruising at a speed of 56.9 m/s atan altitude of 185 m. What is the total mechanical energy of the
    10·1 answer
  • The earth is made mostly of metals and rocks. Where did this material come from? It was made by nuclear fission of uranium and o
    5·1 answer
  • A 2290 kg car traveling to the west at 22.3 m/s slows down uniformly. How long would it take the car to come to a stop if the fo
    13·2 answers
  • If you were doing a research study on sleep and student achievement, which
    14·2 answers
  • At the top of a roller coaster you have 90j of potential energy and 10 j of kinetic energy at the bottom of the roller coaster y
    13·1 answer
  • Arrange the phases of the Moon in order of increasing rising time, from the phase with the earliest rising time at 12:00 a.m. to
    6·1 answer
  • A rock is thrown vertically upward from some height above the ground. It rises to some maximum height and falls back to the grou
    6·1 answer
  • I'll mark brainly for the right answer!
    9·1 answer
  • The treasure map gives the following directions to the buried treasure ​
    5·1 answer
  • USE INTERNET TO ANSWER THE FOLLOWIN 6. Research about the causes of the following: (use diagrams were necessary
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!