1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Musya8 [376]
4 years ago
8

If you know these plz help me out:)

Physics
2 answers:
Vedmedyk [2.9K]4 years ago
7 0

Answer:

1. Attacking the person

2. Stress fractures

Explanation:

If this helps this is on my opinion and I need do my best to help you:)

harkovskaia [24]4 years ago
7 0
Hi there!

The answers would be “Attacking the person” and “Stress Fractures”

Have a great day!
You might be interested in
The type of current supplied by a battery in a flashlight is an alternating current. True or False?
Mamont248 [21]
The answer is false
The type of current supplied is dc
4 0
4 years ago
Read 2 more answers
Please help San Jose to San Francisco is approximately 7200 meters away. If it takes you 3600 seconds to drive by car what is th
Nuetrik [128]

Answer:

It takes approximately 52 min to drive from San Jose to San Francisco.

Explanation:

5 0
3 years ago
Read 2 more answers
A system for specifying the precise of objects in space and time
german
The answer is frame of reference ( system ).
Frame of reference <span>is a physical concept related to state of motion.

hoped it helped!!</span>
7 0
4 years ago
How many significant figures are in the measurement 230kg
Free_Kalibri [48]
There are 39 sig. figs.
6 0
3 years ago
An engine draws energy from a hot reservoir with a temperature of 1250 K and exhausts energy into a cold reservoir with a temper
bixtya [17]

Answer:

a. P=18.61\ W

b. \eta_c=0.6976=69.76\%

c. \eta=0.4718=47.18\%

Explanation:

Given:

  • temperature of the hotter reservoir, T_H=1250\ K
  • temperature of the colder reservoir, T_C=378\ K
  • heat absorbed by the engine, Q_H=1.42\times 10^{5}\ J
  • heat rejected to the cold reservoir, Q_L=7.5\times 10^4\ J
  • time duration of the energy transfer, t=1\ hr=3600\ s

<u>Now the work done by the engine:</u>

Using energy conservation,

W=Q_H-Q_L

W=14.2\times 10^4-7.5\times 10^4

W=6.7\times 10^4\ J

a.

<u>Hence the power output:</u>

P=\frac{W}{t}

P=\frac{6.7\times 10^4}{3600}

P=18.61\ W

b.

\eta_c=1-\frac{T_L}{T_H}

\eta_c=1-\frac{378}{1250}

\eta_c=0.6976=69.76\%

c.

now actual efficiency:

\eta=\frac{W}{Q_H}

\eta=\frac{6.7\times 10^4}{1.42\times 10^{5}}

\eta=0.4718=47.18\%

6 0
4 years ago
Other questions:
  • In a regular expression string, what is used to match a series of characters 4 digits in length, at the end of a line?
    13·1 answer
  • assume the chair is 70 kg, the woman is 58 kg, the baby is 9 kg. Identify the normal forces between all three objects
    11·1 answer
  • A student makes a model of the sun-Earth system by swinging a ball around her head. Using this model, the student is trying to e
    10·2 answers
  • O gás oxigênio necessário a respiração para a síntese de glicose pode ser em certas condições explicado pelo modelo de gás ideal
    15·1 answer
  • A cell of internal resistance 2 ohms supplies current to a 6 ohms resistor. What is the efficiency of the cell?. ​
    14·1 answer
  • Effie no longer eats egg salad sandwiches—some time ago, she found herself vomiting after consuming a sandwich that probably had
    6·2 answers
  • The crane is used to support the engine, which has a weight of 1200 lb. Draw the shear and moment diagrams of the boom ABC when
    15·1 answer
  • What is the net force acting on the buggy?<br> N<br> The net force is pointing to the...
    15·2 answers
  • HELP ASAP !!! !!!!!!!
    11·2 answers
  • .
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!