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
emmasim [6.3K]
3 years ago
7

We use a battery to cause a continuous potential difference by getting charges to separate. Explain why the terminals of a batte

ry have to be connected together before current flows. _______________________________________________________________________________ ____________________________________________________________________________[2]
Physics
1 answer:
QveST [7]3 years ago
6 0

Answer:

To create an electric potential difference between the ends of the conductor.

Explanation:

For current to flow, there must exist an electric potential difference between the ends of the conductor. This PD is provided by the electromotive force stored within the battery. Unless there is a connection between the terminals no PD will exist between the terminals.

You might be interested in
What process primes a molecule to change in a way that increases its activity, produces motion, or does work
kirza4 [7]

Answer:

cellular respiration.

explanation: cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water.

4 0
2 years ago
2. A 1750 kg car accelerates at a rate of 4.0 m/s2. How much force is the cars engine producing?
8090 [49]

Answer:

<h2>7000 N</h2>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 1750 × 4

We have the final answer as

<h3>7000 N</h3>

Hope this helps you

6 0
3 years ago
STOP TO THINK 17.1 Two pulses on a string approach each other at speeds of 1 m/s. What is the shape of the string at t = 6 s?
Vinvika [58]

'The principle of superposition states that when two disturbance occupy the same space at the same time the resulting disturbance is the sum of two disturbances.'

Explanation:

if two pulses are moving towards each other in the same medium and are not disturb by any external force they will approach each other and the point which will be the the sum of their individual displacement or more precisely the point of superposition of both pulses either constructive or destructive depending on the conditions given

8 0
3 years ago
What is causing the boat to move toward the shore?
ivann1987 [24]

Answer:c

Explanation:because when u push the oar back u go forward

4 0
3 years ago
Read 2 more answers
What is the maximum height a 95 W motor may vertically lift a 120 N weight in 6.2 s?
leva [86]

Answer:

a. 4.9 m

Explanation:

To solve this problem we must take into account that power is defined as the relationship between the work and the time in which the work is done.

P = W/t

where:

P = power = 95 [W] (units of watts)

W = work [J] (units of Joules)

t = time = 6.2 [s]

We can clear the work from the previous equation.

W = P*t

W = 95*6.2 = 589 [J]

Now we know that the work is defined by the product of the force by the distance, therefore we can express the work done with the following equation.

W = F*d

where:

F = force = 120 [N] (units of Newtons)

d = distance [m]

d = W/F

d = 589/120

d = 4.9 [m]

4 0
3 years ago
Other questions:
  • Which type of energy is stored in a stretched string on the bow in the following figure ​
    6·2 answers
  • Which best explains the relationship between heat energy and temperature?
    10·1 answer
  • ver shines light up to the surface of a flat glass-bottomed boat at an angle of 30 relative to the normal. If the index of refr
    6·1 answer
  • A roller coaster car rapidly picks up speed as it rolls down a slope. as it starts down the slope, its speed is 4 m/s. but 3 sec
    8·1 answer
  • how much energy is stored in a 7.0 cm spring that has a spring constant of 500 N/m when it is stretched 3.0 cm​
    10·1 answer
  • 2. At noon, ship A was 12 nautical miles due north of ship B. Ship A was sailing south at 12 knots (nautical miles per hour; a n
    14·1 answer
  • A student was trying to find the relationship between mass and force. He placed four different masses on a table and pulled them
    8·2 answers
  • The law of universal gravitation
    5·1 answer
  • An aluminum wire having a cross-sectional area equal to 2.20 10-6 m2 carries a current of 4.50 A. The density of aluminum is 2.7
    9·1 answer
  • A woman was recently given the opportunity to ride in a porsche race car on their test in Hapeville, Georgia. Below is a graph o
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!