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
kherson [118]
2 years ago
7

You do 45.0 joules of work and 3.00 seconds how much power do you use​

Physics
1 answer:
Arada [10]2 years ago
8 0

Answer:

15 watt

Explanation:

Power is the rate at which work is done.

This means you divide the work done with the amount of time used to perform the work.

The formula for Power is : P = W/t  where;

W= work done in J = 45

t= time in seconds = 3 sec

P= 45/ 3 = 15 watt

You might be interested in
Have you ever visited an amusement park and taken a ride on a parachute drop ride? These types of rides take the passengers to a
Triss [41]

Answer & Explanation:

a)

Lenz's law states that the direction of induced electric current is always such that, it opposes the change in magnetic flux.

In a drop ride, the hub on which we sit and are hung to is an electromagnet and there are many such magnets mounted on the columns of the support. what happens is these electromagnets (in support) generate a repulsive magnetic field with respect to the field generated by the hub solenoids. this results in lift generation till the top of ride. reaching the top, the bar solenoids are at their maximum repulsive force. Then the solenoids in column are set current less means electric supply is cut off. this makes you fall under the effect of gravity. by the time you are half way down, column  solenoids are turned on again. As the hub solenoid approaches every single electromagnet in supporting columns. Due to change in magnetic field (with respect to lenz's law) an opposing current induces further providing resistance to the fall, this continues until the ride comes to rest completely. This is how it works.  

c) In addition, highly compressive springs, dampers, viscous dampers, etc. could be used in its place.

but the above listed cannot provide a differential braking,

have a limited lifecycle,

will provide resistance during lift also,

require higher maintenance

3 0
3 years ago
A sound wave has a wavelength of 15 meters with a frequency of 2.5 Hz. What would the velocity be for this situation in
rodikova [14]

Answer:

6m/s

Explanation:

V = frequency * wavelength

15 * 2.5 = 6m/s

7 0
2 years ago
A force that causes an object to change its motion is called?
GarryVolchara [31]
Unbalanced force.

The definition of an unbalanced force is a force that changes the position, speed or direction of the object to which it is applied.

When an object is still it means that is is balanced force. So you would need to add more force to another side to make it move. Which is unbalanced force.
8 0
3 years ago
how many atoms of oxygen are there in one molecule of cardon dioxide , if the chemical formula is CO2
garri49 [273]

Answer:

2 oxygen 1 carbon

Explanation:

8 0
3 years ago
Read 2 more answers
A length of wire is cut into five equal pieces. if each piece has a resistance of 0.45 ω, what was the resistance of the origina
azamat
Calculation, add them. 0.85 x 5 = 4.25 Ω
5 0
3 years ago
Other questions:
  • Rosa uses the formula (vi cos)t to do a calculation. Which value is Rosa most likely trying to find?
    12·2 answers
  • you are pushing a friend in a wagon.you push with a force of 40N. your friend and wagon together have a mass of 80kg. ignoring f
    12·1 answer
  • A car of mass 1500 kg travels due East with a constant speed of 25.0 m/s. Eventually it turns right, and travels due South with
    7·1 answer
  • How many mean free paths thick must a shield be designed in order to attenuate an incident neutron beam by a factor of 1000?
    6·1 answer
  • In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.
    5·2 answers
  • What does a chemial formula represent
    8·1 answer
  • What could be the average human density? Justify?
    12·2 answers
  • A road that rises 1 ft for every 100 ft traveled
    10·1 answer
  • A pathogen has entered your body and you become sick. You develop a fever and vomit. This is your body's way of trying to mainta
    11·1 answer
  • Which type of mixture is it, if the solid settles out of the mixture over time?.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!