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
Arisa [49]
4 years ago
9

An outside thermometer reads 57°F. What is this temperature in °C? Round your answer to the nearest whole number.

Physics
2 answers:
kari74 [83]4 years ago
8 0
The answer would be 13.8889
Nearest whole=14
hope this helps:)
Mnenie [13.5K]4 years ago
3 0

Answer:

14°C

Explanation:

Temperature is the degree of hotness or coldness of an object. It is measured using an instrument called THERMOMETER. There are different units of measuring temperature which are interconvertible. The units are Fahrenheit (°F), Celsius (°C), Kelvin (K) etc.

In this question, the thermometer reads 57°F. To convert this temperature reading to °C, we use the formula:

[°C] = ([°F] − 32) × 5/9

Hence,

[°C] = (57− 32) × 5/9

[°C] = (25) × 5/9

[°C] = 125/9

= 13.888888

Hence, 57°F approximated to the nearest whole number will be 14°C.

You might be interested in
1. If a spring has a spring constant of 2 N/m and it is stretched 5 cm, what is the force of
liubo4ka [24]
DO NOT PRESS THE LINK IT IS GOING TO HACK YOU
4 0
3 years ago
Help Please fast like now!!​
defon

Answer: d. availability of places to play

Explanation: I think that it’s d because availability of space to do your physical activity is important. Availabilty of places to play is an environmental factor due to where you decide to play.

7 0
3 years ago
A rigid tank of air is cooled (temperature decreased) the volume has to remain constant because it is a rigid tank the air press
larisa [96]
If we consider Boyles law for gases, it states the following equation,
PV/T =k
where k is a constant
P-pressure, T- temperature and V -volume
the volume is constant at both situations as its a rigid tank as mentioned in the questions.
Therefore we consider Volume to be constant , then equation is
P/T = kV
kV = c (new constant)
P/T = c
P = cT
Therefore pressure is inversely proportional to temperature, whatever change in pressure would cause the same kind of change in temperature as well.
therefore when T decreases, P also decreases.
Answer is B
5 0
4 years ago
A mass weighing 32 pounds stretches a spring 2 feet. Determine the amplitude and period of motion if the mass is initially relea
grandymaker [24]

A mass weighing 32 pounds stretches a spring 2 feet.

(a) Determine the amplitude and period of motion if the mass is initially released from a point 1 foot above the equilibrium position with an upward velocity of 6 ft/s.

(b) How many complete cycles will the mass have completed at the end of 4 seconds?

Answer:

A = 1.803 ft

Period = \frac{\pi}{2} seconds

8 cycles

Explanation:

A mass weighing 32 pounds stretches a spring 2 feet;

it implies that the mass (m) = \frac{w}{g}

m= \frac{32}{32}

= 1 slug

Also from Hooke's Law

2 k = 32

k = \frac{32}{2}

k = 16 lb/ft

Using the function:

\frac{d^2x}{dt} = - 16x\\\frac{d^2x}{dt} + 16x =0

x(0) = -1        (because of the initial position being above the equilibrium position)

x(0) = -6          ( as a result of upward velocity)

NOW, we have:

x(t)=c_1cos4t+c_2sin4t\\x^{'}(t) = 4(-c_1sin4t+c_2cos4t)

However;

x(0) = -1 means

-1 =c_1\\c_1 = -1

x(0) =-6 also implies that:

-6 =4(c_2)\\c_2 = - \frac{6}{4}

c_2 = -\frac{3}{2}

Hence, x(t) =-cos4t-\frac{3}{2} sin 4t

A = \sqrt{C_1^2+C_2^2}

A = \sqrt{(-1)^2+(\frac{3}{2})^2 }

A=\sqrt{\frac{13}{4} }

A= \frac{1}{2}\sqrt{13}

A = 1.803 ft

Period can be calculated as follows:

= \frac{2 \pi}{4}

= \frac{\pi}{2} seconds

How many complete cycles will the mass have completed at the end of 4 seconds?

At the end of 4 seconds, we have:

x* \frac{\pi}{2} = 4 \pi

x \pi = 8 \pi

x=8 cycles

5 0
3 years ago
The placebo effect can weaken the _____ of an experiment.
erik [133]
The answer to this question would be: internal validity
Placebo effect happens when someone feels that they are getting better just because they got a drug, not by the substance inside the drug. That means even if the drug is empty the person can feel that it works.
Placebo effect can decrease the actual effect of the drug, thus decreasing the internal validity.
7 0
3 years ago
Other questions:
  • What is loudness?
    14·2 answers
  • A child is sitting in a sled at the top of a snowy hill. Which statement is true regarding the position of the child?
    6·1 answer
  • After a collision, the y-component of momentum of a car is 4.50 meters/second, and the x-component of its momentum is 9.80 meter
    8·1 answer
  • A moving object slows to a stop because of compression.*<br> True<br> False
    12·2 answers
  • Explain thermodynamics?
    7·2 answers
  • A research-level Van de Graaff generator has a 2.15 m diameter metal sphere with a charge of 5.05 mC on it. What is the potentia
    14·1 answer
  • Ethyl alcohol has a boiling point of 78.0°C, a freezing point of -114°C, a heat of vaporization of 879 kJ/kg, a heat of fusion o
    12·1 answer
  • A charge −1.3 × 10−5 C is fixed on the x-axis at 7 m, and a charge 1 × 10−5 C is fixed on the y-axis at 4 m. Calculate the magni
    5·1 answer
  • After a nucleus with 85 protons undergoes alpha decay, it has<br><br> ? protons.
    11·1 answer
  • PLEASE HELP!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!