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kati45 [8]
2 years ago
9

What affects fuel consumption in automobiles?

Physics
1 answer:
maksim [4K]2 years ago
4 0

Answer:

A and C

Explanation:

drag (the area of lower air pressure behind the car when moving) and mostly air resistance (the work to push the air in front of us away to move through - the faster we go, the stronger the air resists to move aside).

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Which best describes the electric field created by a positive charge?
Vikentia [17]

Answer:

Which best describes the electric field created by a positive charge? ... Its rays point toward the charge.

Explanation:

thank me later

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3 years ago
Which situation would water evaporate faster from.quick help?!
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The last option in Puerto Rico where it’s sunny and 88°
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3 years ago
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Curtis, a student in our class, makes the following statement: The puck reached a slightly higher location on the ramp than I pr
Sindrei [870]

Answer and Explanation: No, the explanation is not plausible. The puck sliding on the ice is an example of the <u>Principle</u> <u>of</u> <u>Conservation</u> <u>of</u> <u>Energy</u>, which can be enunciated as "total energy of a system is constant. It can be changed or transferred but the total is always the same".

When a player hit the pluck, it starts to move, gaining kinetic energy (K). As it goes up a ramp, kinetic energy decreases and potential energy (P) increases until it reaches its maximum. When potential energy is maximum, kinetic energy is zero and vice-versa.

So, at the beginning of the movement the puck only has kinetic energy. At the end, it gains potential energy until its maximum.

The representation is as followed:

K_{i}+P_{i}=K_{f}+P_{f}

K_{i}+0=0+P_{f}

\frac{1}{2}mv^{2} = mgh

As we noticed, mass of the object can be cancelled from the equation, making height be:

h=\frac{v^{2}}{2g}

So, the height the puck reaches depends on velocity and acceleration due to gravity, not mass of the puck.

6 0
3 years ago
A car travels from Bangalore to Mumbai and returns back on 20 hrs. What is the average velocity and average speed of the car if
irinina [24]

Answer:

Explanation:

Average speed= Total distance/ Total time

                        

Initial reading= 2200

final reading= 3800

total distance= Final reading -initial reading  = 3800-2200 = 1600 km

total time= 20 hrs

Average speed= 1600/20

                        = 80 km/hr

CONVERTING km/hr TO m/s  

To convert km/hr to m/s just multiply

Recall that,

1000m = 1 km

60 secs = 1 min

60 mins = 1 hr

( 80 × 1000 ) meters / ( 60×60 ) secs

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7 0
2 years ago
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Which circuit has the larger equivalent resistance: a circuit with two 10 ohm resistors connected in parallel or a circuit with
Ganezh [65]

Answer:

A circuit with two 10 ohm resistors connected in series.

Explanation:

The formula for the equivalent resistance for resistors in parallel is

\frac{1}{Rt} = \frac{1}{R1} + \frac{1}{R2}   So if R1=R2= 10  \frac{1}{Rt} = \frac{1}{10} + \frac{1}{10} = \frac{2}{10}   Rt =\frac{10}{2} =5 ohm

The formula for the equivalent resistance for resistors in series is

Rt = R1 + R2  So Rt= 10 + 10 = 20

6 0
3 years ago
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