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
Nesterboy [21]
3 years ago
11

In a physics lab, a 60-kg student runs up a 2.0-meter tall flight of stairs in 1.5 seconds. The work done to get to the top is 1

200 Joules. The student's power rating is approximately _W.
Physics
1 answer:
tester [92]3 years ago
3 0
<span>The student's power rating is approximately 800W.
</span>
Power is the rate of doing work. Its SI unit is Watt. 1 W = 1J/sec

Given: <span>The work done to get to the top is 1200 Joules
</span>
Time = 1.5 seconds.

Power = \frac{work done}{time} &#10;=  \frac{1200J}{1.5 sec} &#10;= 800J/sec &#10;= 800W
You might be interested in
Help Plsss
sattari [20]
On the Newtonian theory of gravity, gravitation affects anything with mass. Assuming that none of the answer choices is the only thing that exists in the universe, all of the answer choices are subject to the law of universal gravitation (hence “universal”).

Satellites, water, frogs, and stars all have mass as they are all composed of matter. Thus, all four answer choices should be circled.
3 0
3 years ago
What parts of an atom can change during a nuclear reaction that cannot change during a chemical reaction? Question 15 options: A
viva [34]
Neutrons and protons cannot be removed from nucleus from chemical reactions because they are strongly held together but nuclear reactions are strong enough to separate them. Hence option A is correct.
6 0
2 years ago
Read 2 more answers
a car with a mass of 2,000 kilograms is moving around a circular curve at a uniform velocity of 25 meters per second. the curve
Ber [7]
Fc=mv^2/r so we get 

2000kg*(25m/s)^2/(80m)= 15625N of force 

hope this helps! Thank You!!

4 0
2 years ago
You throw a balloon that floats in the air with a velocity of 2 m / s south . If the wind speed is 5 m / s west , how far south
zvonat [6]

Answer:

The distance traveled by the balloon is 10.77 m

Explanation:

velocity of the ball, v_b = 2 m/s south

velocity of the air, v_a = 5 m/s west

To determine the distance the balloon will travel after 2 seconds, first determine the resultant velocity of the balloon.

                                       | 2m/s

                                       |

                                       |

                                      ↓

      5m/s  ←------------------

the two velocities forms a right angled triangle and the resultant will be the hypotenuses side of the triangle.

R² = 5² + 2²

R² = 29

R = √29

R = 5.385 m/s

The distance traveled by the balloon is calculated as;

d = R x t

where;

t is time of the motion = 2 seconds

d = 5.385 x 2

d = 10.77 m

Therefore, the distance traveled by the balloon is 10.77 m.

4 0
3 years ago
A vertical spring (ignore its mass), whose spring constant is 1070 N/m, is attached to a table and is compressed 0.100 m.
harina [27]

I can not solve the problem if I do not have the mass.

3 0
3 years ago
Other questions:
  • If we rotate on our axis does that count as a day
    7·1 answer
  • If you are seeing a solar eclipse but you are not located in the umbra of the moon, what might you see in the sky?
    15·1 answer
  • If your vehicle sinks in water, which window should you kick out when the pressure equalizes?
    9·1 answer
  • A flash of white light containing all the colors of the visible spectrum in air shines straight down on the surface of a pool. W
    10·1 answer
  • 14. Looking ahead: Give an example of how the Law of Conservation of Energy applies to eating your favorite meal. Give at least
    9·1 answer
  • What element from the periodic table rhymes with extreme
    13·1 answer
  • A submarine dives from rest a 100-m distance beneath the surface of an ocean. Initially, the submarine moves at a constant rate
    6·1 answer
  • What is latent heat? Group of answer choices Energy released when water evaporates. Energy hidden in water vapor in the air. Ene
    14·1 answer
  • A particle initially located at the origin has an acceleration of = 1.00ĵ m/s2 and an initial velocity of i = 6.00î m/s. (a) Fin
    9·1 answer
  • Entropy is how quickly things get messy.<br> O A. True<br> OB. False<br><br><br><br> Answer : False
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!