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
marishachu [46]
2 years ago
10

Please solve this for me ​

Physics
1 answer:
uranmaximum [27]2 years ago
6 0

See if you get the answer with this formulae.

You might be interested in
Speed is the rate of change in
vaieri [72.5K]
Speed is the rate of change <span>of distance.</span>
6 0
3 years ago
Read 2 more answers
A heat engine: A) converts heat input to an equivalent amount of workB) converts work to an equivalent amount of heat C) takes h
Masja [62]

Answer:

C. Takes heat in, does work, and loses energy heat.

Explanation:

Heat engine is a system makes use of thermal energy (heat) to in order to do mechanical work.

This occurs by converting the heat into mechanical energy. This energy is then used to do work.

The key characteristic of a heat engine is that the substance with which work is done by, goes from a higher temperature to a lower temperature.

Hence, it loses heat as it does work.

3 0
2 years ago
How does The centripetal fotce change if the car has less Mass?​
vaieri [72.5K]

Answer:

The centripetal force acting on the car is proportional to the mass of the car.

Explanation:

Let,

The mass of the car be 'm'

The velocity of the car moving in the curved path be 'v'

The radius of the curved path be 'r'

According to physics, a body moving ion circular path experience a force directed along the radius of the path. This force is called centripetal force.

The formula for centripetal force is,

                                   <em>F = mv²/r</em>

Where,

                                      a = v²/r

So, if the mass of the car changes, the centripetal force also changes proportionally according to the above equation.

5 0
3 years ago
A particular heat engine has a mechanical power output of 4.00 kW and an efficiency of 26.0%. The engine expels 8.55 103 J of ex
Ivahew [28]

To develop the problem we will start by finding the energy taken by each cycle through the efficiency of the motor and the exhausted energy. Later the work will be found for the conservation of energy in which this is equivalent to the difference between the two calculated energy values. Finally the estimated time will be calculated with the work and the power given,

\text{Efficiency of the heat engine} = \eta = 26\% = 0.26

\text{Energy taken in by the heat engine during each cycle} = Q_h

\text{Energy exhausted by the heat engine in each cycle} = Q_c = 8.55*10^3 J

\eta = 1 - \frac{Q_{c}}{Q_{h}}

0.26 = 1 - \frac{8.55\ast 10^{3}}{Q_{h}}

\frac{8.55* 10^{3}}{Q_{h}} = 0.74

Q_h = \frac{8.55*10^3}{0.74}

Q_h = 11.554*10^3J

PART A)

Work done by the heat engine in each cycle = W

W = Q_h-Q_c

W = 11.554*10^3J-8.55*10^3J

W = 3004J

According to the value given we have that,

P = 4.0kW

P = 4000W

Power is defined as the variation of energy as a function of time therefore,

P = \frac{W}{t}

4000W = \frac{3004J}{t}

t = \frac{3004}{4000}

t = 0.75s

Therefore the interval for each cycle is 0.75s

5 0
3 years ago
A museum sets up a display of fluorescent minerals. Which best describes how electromagnetic waves can be used to enhance the di
belka [17]

Answer:

C.

Explanation:

Ultraviolet light shining on the minerals will cause them to give off visible light.

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the SI unit for intensity?
    8·1 answer
  • Which of the following are true statements? A. Like charges repel B. Unlike charges repel C. Unlike charges attract or D. Charge
    9·1 answer
  • A group of lions is chasing a zebra. The lions are most likely responding to which kind of stimulus
    9·1 answer
  • a snail can move approximately 0.30 meters per minute.How many meters can the snail cover in 15 minutes ?
    12·1 answer
  • If an object has a mass of 38 kg, what is its approximate weight on earth?
    5·1 answer
  • An astronomer whose secret hobby is riding merry-go-rounds has dedicated his career to finding the stars that rotate the most ra
    12·1 answer
  • Thermodynamic Processes: An ideal gas is compressed isothermally to one-third of its initial volume. The resulting pressure will
    12·1 answer
  • How would radiation occur in space?
    12·1 answer
  • What includes a distance and a direction? A. Displacement B. Velocity C. Speed D. Acceleration
    8·2 answers
  • As an object moves, the distance it travels increases with time.<br><br> Agree<br> Disagree
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!