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tigry1 [53]
3 years ago
10

Which is an example of the first law of thermodynamics?

Physics
1 answer:
tresset_1 [31]3 years ago
8 0

Answer: The first one listed Is C. The second one listed, is A. The third one listed, is B. The fourth one listed is C.

Explanation: I just took this test

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Help ASAP<br> Answer question 3 please!!!
PolarNik [594]

Answer:

the answer is ture

Explanation:

because the energy substances must absorb in order to change from liquid to gas

8 0
3 years ago
A baseball pitcher throws the ball towards the batter at 90 mph. His bat connects with the ball for a line drive, after which th
forsale [732]

Answer:

F=-18412.9N, where the minus indicates the direction is opposite to that of the throw.

Explanation:

a)

Since MKS stands for meter-kilogram-second and we know that:

1\ hour = 3600\ seconds

1\ mile = 1600\ meters

1000g = 1kg

We can write that:

\frac{1\ hour}{3600\ seconds}=1

\frac{1600\ meters}{1\ mile}=1

\frac{1kg}{1000g}=1

These are conversion factors, equal to 1, so multiplying our results by them won't change their value, only their units.

So we have that:

90 mph=90 \frac{miles}{hour}(\frac{1\ hour}{3600\ seconds})(\frac{1600\ meters}{1\ mile})=40m/s

110 mph=110 \frac{miles}{hour}(\frac{1\ hour}{3600\ seconds})(\frac{1600\ meters}{1\ mile})=48.89m/s

145 g=145 g(\frac{1kg}{1000g})=0.145kg

b)

Newton's 2nd Law tells us that F=ma, and the definition of acceleration is a=\frac{\Delta v}{\Delta t}, so we have:

F=m\frac{\Delta v}{\Delta t}=m\frac{v_f-v_i}{t}

Taking the throw direction as the positive one, for our values we have:

F=m\frac{v_f-v_i}{t}=(0.145kg)\frac{(-48.89m/s)-(+40m/s)}{0.0007s}=-18412.9N

4 0
3 years ago
HELP PLEASE DUE IN 3 MINUTES
diamong [38]

Answer:

tectonic plate movement

Explanation:

6 0
2 years ago
Explain the principles of effective team
steposvetlana [31]

Answer:

work relationship built on trust.

Explanation:

Align on a set of communication best practices understood by all members of the team. Create a work environment built on trust and empathy. Manage healthy conflict through standards, processes, and real-time feedback. Develop a support system through patience and discipline.

5 0
3 years ago
Which of the following is equal to impulse?<br> A. Ft<br> B. m/s<br> C. pt<br> D. mv
tankabanditka [31]
Answer: A (Ft)

Explanation: The impulse experienced by the object equals the change in momentum of the object. In equation form, F • t = m • Δ v
5 0
3 years ago
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