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
Snezhnost [94]
3 years ago
9

A voltage source provides ____ required for electric current. A. the electrons B. the potential difference C. the resistance D.

the pathway
Physics
1 answer:
Alex Ar [27]3 years ago
5 0
The answer is c bro I’m guessing
You might be interested in
A step-up transformer is connected to a generator that is delivering 197 v and 113 A. The ratio of the turns on the secondary is
alekssr [168]

Complete Question

A step-up transformer is connected to a generator that is delivering 197 v and 113 A. The ratio of the turns on the secondary to the turns on the primary is 600 to 5. What is the voltage across the secondary

Answer:

The voltage is V_s  =  23640  \  V

Explanation:

From the question we are told that

   The  voltage is  V_p  = 197  \ V

    The current is  I  =  113  \  A

   The  number of turn on the secondary is  N_s =  600 \ turns

    The  number of turn on the primary is  N_p =  5 \  turns

Generally from the Transformer Turns ratio equation

    \frac{N_s}{N_p} = \frac{V_s}{V_p}

=>  \frac{ 600}{ 5} = \frac{V_s}{197 }

=>  V_s  =  23640  \  V

7 0
4 years ago
A ball is thrown at an angle of to the ground. If the ball lands 90 m away, what was the initial speed of the ball?
andre [41]

Answer:

The initial speed of the ball is 30 m/s.

Explanation:

It can be assumed that the ball is thrown at an angle of 45 degrees to the ground. The ball lands 90 m away. We need to find the initial speed of the ball. We know that the horizontal distance covered by the projectile is called its range. It is given by :

R=\dfrac{u^2\ sin2\theta}{g}

u is the initial speed of the ball.

v=\sqrt{\dfrac{Rg}{sin2\theta}}

v=\sqrt{\dfrac{90\times 9.8}{sin2(45)}}

v = 29.69 m/s

or

v = 30 m/s

So, the initial speed of the ball is 30 m/s. Hence, this is the required solution.                                      

8 0
4 years ago
Xenon hexafluoride was one of the first noble gas compounds synthesized. The solid reacts rapidly with the silicon dioxide in gl
Oxana [17]

Answer:

0,93 atm

Explanation:

For this we will use PV = nRT

P is what we want to find

V = 1 L

n = \frac{8.53}{223.23} = 0,038 moles

R = 0,082 \frac{L atm}{K mole}

T = 25°C = 298,15 K

P * 1 = 0,038 *0,082 * 298,15

P = 0,93 atm

5 0
3 years ago
A projectile is fired at an upward angle of 29.7° from the top of a 108-m-high cliff with a speed of 130-m/s. What will be its
german

Answer:

79.2 m/s

Explanation:

θ = angle at which projectile is launched = 29.7 deg

a = initial speed of launch = 130 m/s

Consider the motion along the vertical direction

v₀ = initial velocity along the vertical direction = a Sinθ = 130 Sin29.7 = 64.4 m/s

y = vertical displacement = - 108 m

a = acceleration = - 9.8 m/s²

v = final speed as it strikes the ground

Using the kinematics equation

v² = v₀² + 2 a y

v² = 64.4² + 2 (-9.8) (-108)

v = 79.2 m/s

5 0
3 years ago
What is the speed of a bird of mass 8kg which has kinetic energy of 8836J?
Kay [80]

Answer:

For the bird moving in a straight line, the kinetic energy is one-half the product of the mass and the square of the speed: Ek=12mu2.

4 0
3 years ago
Other questions:
  • Tether ball is a game children play in which a ball hangs from a rope attached to the top of a tall pole. The children hit the b
    15·1 answer
  • When you are finished with the experiment, complete the following data analysis and record your answers in the Essay box below.
    13·1 answer
  • A car is safely negotiating an unbanked circular turn at a speed of 25 m/s. The road is dry, and the maximum static frictional f
    7·1 answer
  • Mary needs to row her boat across a 190 m -wide river that is flowing to the east at a speed of 1.3 m/s . mary can row with a sp
    15·1 answer
  • Electrical outlets in a house maintain a steady voltage, even when the amount of resistance on them changes. How is this possibl
    13·1 answer
  • A boat uses its motor to increase its speed from 5 m/s to 7 m/s. If the boat has a mass of
    12·1 answer
  • A child is thrown horizontally from a 45m tall tower with a velocity of 7m/s.
    6·1 answer
  • 5. The graph in Figure 10-16 shows the force
    12·1 answer
  • Determine the volume of an object that has a mass of 455.6 g and a density of 19.3 g/cm3.
    12·1 answer
  • An object is initially at rest, then it moves 100m east in four seconds then it travels 120m west in 6 seconds, what is the aver
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!