Ask question

Ask question

All categories

tensa zangetsu [6.8K]

3 years ago

10

63 J of heat are added to a closed system. The initial energy of the system is 58J, and the final internal energy is 93J. How mu

ch work is being done by the system?

1 answer:

Nesterboy [21]3 years ago

7 0

ΔU = Q + W

heat in, Q +
heat out, Q -
does work , W -
work in, W +

93-58 = 63 + W

35 = 63 + W

W = - 28 J (does work/being done by system)

You might be interested in

The purpose of antilock brake systems is to prevent the brakes from becoming locked.Choose one True False

nata0808 [166]

Answer:True

Explanation:

The above statement is true as an anti-lock braking system (ABS) is a vehicle protection system that helps the wheels on a vehicle to keep up tractive force with the road. ABS does not allow the brake to lock during braking and thus avoiding skidding which is necessary to avoid in wet roads otherwise it could be fatal for drivers.

It is widely used in vehicles to improve the safety measures and reduce road accidents.

5 0

3 years ago

Which explains the downward force produced when air flows over the winglike spoiler on a race car?

professor190 [17]

Newton's principle
newton's 2nd law of motion where F=ma

3 0

3 years ago

If you travel 450 meters in 40 seconds, what is your average speed in meters per

Vedmedyk [2.9K]

Answer:

The answer is a 11.25m/s

8 0

3 years ago

Read 2 more answers

The car travels 25 miles in the first 0.5 hours

Westkost [7]

Answer:

$\huge\boxed{\sf v = 50\ miles / hr}$

Explanation:

<u>Given Data:</u>

Distance = S = 25 miles

Time = t = 0.5 hours

<u>Required:</u>

Speed = v = ?

<u>Formula:</u>

v = S/t

<u>Solution:</u>

v = 25 / 0.5

v = 50 miles / hr

$\rule[225]{225}{2}$

Hope this helped!

<h3>~AnonymousHelper1807</h3>

4 0

3 years ago

What is the speed of a wave on a string with a wavelength of 1.75 m and a frequency of 2.0 Hz

deff fn [24]

Answer:

V=3.5 m/s

Explanation:

V=(F)(W)

V=(2)(1.75)

V= 3.5 m/s

7 0

3 years ago