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DENIUS [597]
3 years ago
12

You drive a car for 2.2 h at 45 km/h, then for another 2.2 h at 60 km/h. what is your average velocity?

Physics
1 answer:
mash [69]3 years ago
6 0
Average would be 45 plus 60 divided by 2
45plus 60 is 105
105 divided by 2 is 52.5
52.5 is the average velocity 
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DedPeter [7]

Answer:

10.4

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6 0
3 years ago
5. average A body sets off from rest with a constant acceleration of 8.0 m/s? What distance will it have covered after 3.0 s? 6.
chubhunter [2.5K]

Answer:

\boxed {\boxed {\sf 36 \ meters}}

Explanation:

We are asked to find the distance a body covers. We know the initial velocity, acceleration, and time, so we will use the following kinematic equation.

d= v_i t+ \frac {1}{2} \ at^2

The body starts at rest with an initial velocity of 0 meters per second. The acceleration is 8 meters per second squared. The time is 3.0 seconds.

  • v_i= 0 m/s
  • a= 8 m/s²
  • t= 3 s

Substitute the values into the formula.

d= (0 \ m/s)(3 \ s) + \frac{1}{2} (8 \ m/s^2)(3 \ s)^2

Multiply the first set of parentheses.

d= ( 0 \ m/s * 3 \ s) + \frac{1}{2} ( 8 \ m/s^2)(3 \ s)^2

d=0 \ m + \frac{1}{2} ( 8 \ m/s^2)(3 \ s)^2

Solve the exponent.

  • (3 s)²= 3 s* 3 s= 9 s²

d= 0 \ m + \frac{1}{2}( 8 \ m/s^2)(9 \ s^2)

Multiply again.

d= 0 \ m + \frac{1}{2} ( 72  \ m)

d= 36 \ m

The body will cover a distance of <u>36 meters</u>.

5 0
3 years ago
As additional resistors are connected in parallel to a constant voltage source, how is the power supplied by the source affected
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As additional resistors are included lined up across a consistent voltage source, there are more ways for current to take.

So more current spills out of the source, and the all out current provided by the source increments.

The power supplied by the battery is (voltage) x (current).  So if the voltage is constant and the current increases, the power being supplied must also increase.

<h3>What is a resistor?</h3>

A resistor is an electrical part that cutoff points or manages the progression of electrical flow in an electronic circuit. Resistors can likewise be utilized to give a particular voltage to a functioning gadget like a semiconductor.

To learn more about resistors from the given link

brainly.com/question/12864050

#SPJ4

3 0
1 year ago
What is the Calvin cycle and why is it essential for the transfer of energy during photosynthesis
timurjin [86]
Calvin Cycle is the part of the process of photosynthesis, by which Plant makes Food (Glucose), it is independent of the light. It is essential as it is the primary source of energy on the earth

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8 0
4 years ago
Read 2 more answers
Which statement best describes perigee?
algol13
<span>
A. The closet point in the Moon's orbit to Earth . . . . . perigee

B. The farthest point in the Moon's orbit to Earth . . . . . apogee

C. The Sun's orbit that is closest to the Moon . . . . . a meaningless description

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--  The farthest point in Earth's orbit of the Sun . . . . . aphelion
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