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
amid [387]
2 years ago
11

If a 75 W lightbulb is 15% efficient, how many joules of light energy does the bulb produce every minute?

Physics
1 answer:
ddd [48]2 years ago
7 0

Answer:

11.25J

Explanation:

15=(output/75)x100

output =(75x15)/100=11.25J

You might be interested in
Onur drops a basketball from a height of 10m on Mars, where the acceleration due to gravity has a magnitude of 3.7m/s2.​ We want
lbvjy [14]

Explanation:

It is given that, Onur drops a basketball from a height of 10 m on Mars, where the acceleration due to gravity has a magnitude of 3.7 m/s².

The second equation of kinematics gives the relationship between the height reached and time taken by it.

Here, the ball is droped under the action of gravity. The value of acceleration due to gravity on Mars is positive.

We want to know how many seconds the basketball is in the air before it hits the ground. So, the formula is :

\Delta x=v_ot+\dfrac{1}{2}at^2

t is time taken by the ball to hit the ground

v_o is initial speed of the ball

So, the correct option is (A).

8 0
3 years ago
Count the number of atoms of each element in this molecule: 3He(H20)2 PLEASE HELPP!!!!!!​
kykrilka [37]

Answer:

He=3 H=6 O=6

Explanation:

8 0
3 years ago
A ball is projected vertically upward from the surface of the Earth with an initial speed of +49 meters per second. The ball rea
fenix001 [56]
Answer: 245 meters

Explanation: 49 ? Meters
over over over
1 5 seconds

Cross multiply- 49 times 5 divided by 1 which equals 245
8 0
3 years ago
Which of the following is an example of a physical change?
Stels [109]

Answer:

1 question is- I believe 4. Melting Question 2 is Density

Explanation:

THOUGHT ABOUT IT!!!

7 0
3 years ago
At a constant pressure, melting occurs by A) producing energy. B) absorbing energy. C) releasing energy. D) circulating energy.
olganol [36]
Realizing energy.......
5 0
3 years ago
Read 2 more answers
Other questions:
  • What happens to kinetic energy of a snowball as it rolls across the lawn and gains mass
    13·2 answers
  • So
    10·2 answers
  • The graphic organizer above shows that the properties of waves are influenced by the energy of waves. Name 2 properties of waves
    10·1 answer
  • Titus drives his jetski a distance of 1000 meters in 7.045 seconds. How fast was he moving in meters per second? How fast was he
    10·1 answer
  • A proton (mass m 1.67 x 1027 kg) is being accelerated along a straight line at 1.4 x 1015 m/s2 in a machine. The proton has an i
    5·1 answer
  • DEFINE the term free fall
    8·2 answers
  • The amount of work done to bring an electron (q = −e) from right side of hydrogen nucleus to left side in the k shell is________
    12·1 answer
  • 5) A person holds a 1.7 kg bucket and lets it move down at
    9·1 answer
  • I need ideas of what kind of simple motor i can build and how i can build it. The simple motor MUST spin without using your own
    12·2 answers
  • How far does an object travel if it is moving at a speed of 4 m/s for 3.2 seconds?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!