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
Zolol [24]
3 years ago
11

7th grade science urgent! begging for help! if you have a voltage of 120 volts entering your house and a lightbulb with 0.75 amp

eres flowing through it, how many watts is ur light bulb?
Physics
1 answer:
saw5 [17]3 years ago
4 0

Answer:

90 W

Explanation:

The power of the light bulb is given by:

P=VI

where

V is the voltage of the bulb

I is the current through the bulb

In this problem,

V = 120 V

I = 0.75 A

Substituting into the equation,

P=(120)(0.75)=90 W

You might be interested in
Which statement describes the energy involved in diffusion?
artcher [175]

Answer:

Diffusion requires energy only to move material through the cell membrane.

Explanation:

:)

7 0
2 years ago
Read 2 more answers
How many joules of heat must be transferred to a 410-g aluminum pizza pan to raise its temperature from 32oC to 232oC? The speci
xxTIMURxx [149]

Answer:

recall that heat absorbed released is given by

Q = mc*(T2 - T1)

where

m = mass (in g)

c = specific heat capacity (in J/g-k)

T = temperature (in C or K)

*note: Q is (+) when heat is absorbed and (-) when heat is released.

substituting,

Q = (480)*(0.97)*(234 - 22)

Q = 98707 J = 98.7 kJ

Explanation:

3 0
3 years ago
What is the relationship between thickness of lens and focal length?​
Ymorist [56]

Thick lens will have shorter and consequently thin lens will have greater focal length. Because, For a thick lens, the optical path length of the light is more, than for a thin lens, thus, the bending of light will be more in case of a thicker lens. Consequently, it has a shorter focal length.

7 0
2 years ago
A water balloon is hovering directly above the line join points ANB which are 4.6 km apart if the angles of elevation to the bal
Anna35 [415]

Answer:

Drawing the triangle:

H / x = tan 52.2 = 1.29

H / (4.6 - x) = tan 28.8 = .550

H = 1.29 x

H = .55 * 4.6 - .55 x

1.84 x = 2.53        combining equations

x = 1.38

4.6 - 1.38 = 3.22

Total base of triangle = 1.38 + 3.22 = 4.6

H / x = tan 52,2 = 1.29

H = 1.29 * 1.38 = 1.78 height of triangle

Check:

1.78 / 3.22 = tan 28.9    

This agrees with the given value of 28.8

7 0
2 years ago
Was the Big Bang a loud explosion? Why?
Sholpan [36]

Answer:

bc it was a universal explosion and It started the future

Explanation:

FACTS

6 0
3 years ago
Read 2 more answers
Other questions:
  • The star Rho1 Cancri is 57 light-years from the earth and has a mass 0.85 times that of our sun. A planet has been detected in a
    9·1 answer
  • What is the relationship between mass and gravitational force between any two objects?
    15·1 answer
  • I'm in  my lab, writing an essay about the properties of Bose Einstein Condensate. I forgot the formula of producing the condens
    13·1 answer
  • A particle (q = 4.0 mC, m = 50 g) has a velocity of 25 m/s in the positive x direction when it first enters a region where the e
    10·1 answer
  • Energy conversion for a man stepping off a cliff
    10·1 answer
  • The three osicles known as the hammer, anvil and stirrup __________.
    11·1 answer
  • NEED ANSWER ASAP PLEASE!!!!!!!
    10·1 answer
  • On his honeymoon, James Joule attempted to explore the relationships between various forms of energy by measuring the rise of te
    12·1 answer
  • A particle begins to move with uniform acceleration. If in the first second it travels 3m
    12·1 answer
  • Why is impulse and momentum important in sports like cricket??
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!