1. An engine absorbs 600 J of heat while doing 650 J of work. What is the change

College students living off-campus frequently consume large amounts of ramen noodles and boxed macaroni and cheese. When they fi

tigry1 [53]

Answer:

Ramen Noodles and boxed Macaroni and Cheese are COMPLEMENTARY Goods

Explanation:

Complementary Goods are goods that are demanded jointly (together) to satisfy a particular want.

Ramen Noodles, Boxed Macaroni, Cheese are demanded together by off campus college students. So, they are complementary goods.

Also, their demand are directly related - demand of one good increases, demand of other good increases & demand of one good decreases , demand of other good decreases ; because they are demanded together.

After school end , consumption of all goods declining together - is also their characteristic pointing towards them being Complementary Goods .

4 0

3 years ago

A 2kg toy car traveling at 2m/s strikes a second toy car at rest. The mass of the second toy car is 3. The two stock together an

Nutka1998 [239]

Mass of first car = Initial mass (Mi) = 2 kg
Initial velocity (Vi) = 2 m/s

Mass of both cars together = Final mass (Mf) = 2 + 3 kg = 5 kg
Final Velocity (Vf) = ?

Applying law of conservation of momentum,

Mi x Vi = Mf x Vf
2 x 2 = 5 x Vf
Vf = 4/5 = 0.8 m/s

7 0

2 years ago

What is the Kinetic Energy of a 60 kg person on skis traveling 20 m/s?

sattari [20]

Explanation:

equating the parameters into the formula, it's gonna be

= ½ × 60 × 20²

= ½ × 60 × 400

= ½ × 24000

K.E = 12000J

3 0

2 years ago

Light travels approximately 982,080,000 ft/s, and one year has approximately 32,000,000 seconds. A light year is the distance li

Anastasy [175]

Answer: 3.142656 × 10^16 feet

Explanation: Given that the

Speed = 982,080,000 ft/s, and

Time = 32,000,000 seconds

The formula for speed is:

Speed = distance/ time

Make distance the subject of formula

Since the time is second in one year and speed is ft/s, substitute both into the formula

Distance = speed × time

distance = 982,080,000 × 32,000,000

Distance = 3.142656 × 10^16 feet.

The distance of one light year in feet is 3.142656 × 10^16

8 0

2 years ago

How long will it take you to travel 20 miles on a bus that drives 60 miles/h?

ValentinkaMS [17]

Answer:

20 Minutes

Explanation:

Well we know Mph (Miles per hour) is distance over time : $\frac{distance}{time} \\$

R (rate) = 60

d (distance) = 20

t (time) = Unknown

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

R = $\frac{d}{t}$

↓

60 = $\frac{20}{t}$

↓

t = $\frac{20}{60}$

↓

t = $\frac{1}{3}$ or 0.3333

So basically it would take one third of an hour. Lets change these units to minutes.

60 * 0.333333 = 20

So it would take you 20 minutes to drive 20 miles on a bus that drives 60 mph

Hope that helps

~Siascon~

8 0

2 years ago