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
pychu [463]
3 years ago
11

Which would not provide a useful measurement of temperature?

Physics
1 answer:
STatiana [176]3 years ago
6 0

It could maybe be D which is the expansion of a liquid inside a closed tube

You might be interested in
H=ac+mn solve for m
Vinvika [58]

the answer is m= H/n - ac/n

7 0
3 years ago
A 140 g baseball is moving horizontally to the right at 35 mis when it is hit by the bat. the ball fl ies off to the le ft at 55
Anit [1.1K]

Answer:

J = 12.32kg*m/s

Explanation:

Assumptions: I'm assuming mis is m/s

Given: The baseball's mass is 140g, so convert to kg, 0.140kg. (Good rule of thumb, in physics convert grams to kilograms). It is initially traveling 35 m/s to the right.

When it hits the bat, it flies left with a velocity of 55 m/s at an angle of 25°. To reiterate:

mass = 0.140kg, Initial: 35m/s, Final: 55m/s at an angle of 25°

For this problem, we have to use the impulse equation, but before that lets break the velocity into components (It will be apparent towards the end):

The initial velocity is moving only in the horizontal direction, so:

v_{0x} = 35 m/s

The final velocity has an x and a y component:

v_{fx} = 55cos(25) = 49.84692829m/s\\v_{fy} = 55sin(25) = 23.2440044m/s

Now the equation for impulse is (dp is Δp, which is difference in momentum; dv is Δv, the difference in velocity; J is impulse):

J = dp= m*dv

To get Δv, we have to find the difference of velocity, that is why we broke it into components. I'm going to define right as positive and left as negative. After that, we find the velocity vector:

dv_{x} = (35-(-49.84692829)) = 84.84692829 m/s\\dv_{y} = (0-(23.2440044)) = -23.2440044 m/s\\dv = \sqrt{(84.84692829)^2+(-23.2440044)^2} = 87.97320604m/s

Finally, substitute into the equation

J = m*dv\\J = 0.140kg * 87.97320604m/s\\J = 12.31624885kg*m/s\\J = 12.32 kg*m/s

J = 12.32kg*m/s

8 0
2 years ago
A concert loudspeaker suspended high off the ground emits 39 w of sound power. a small microphone with a 1.0 cm2 area is 60 m fr
Gelneren [198K]

As we know that intensity of sound is defined as power received per unit area

so here the power of source is given as

P = 39 W

distance of microphone is given as

d = 60 m

now if loudspeaker is considered as spherical source then we will have

Intensity = \frac{power}{area}

Intensity = \frac{39}{4\pi r^2

here

r = d = 60 m

Intensity = \frac{39}{4\pi (60^2)}

Intensity = 0.86 \times 10^{-3} W/m^2

7 0
3 years ago
A sled is on an icy (frictionless) slope that is 30° above the horizontal. When a 40-N force, parallel to the incline and direct
son4ous [18]

Answer: 5.8kg

Explanation:

F - mg sinΦ = ma

Given that

M=?

g= 9.8

Φ= 30

a= 2

F= 40 then

40 - 9.8 * m * sin 30 = 2 * m

40 = 2 * m + 9.8 * m * sin 30

40 = (2 + 9.8 * sin 30) m

m = 40 / (2 + 9.8 * 0.5)

m = 40 / (2 + 4.9)

m = 40 / 6.9

m = 5.797kg

m = 5.8kg

4 0
3 years ago
If the color red has a wavelength of 7.0 107 m. its frequency is
stepan [7]
I think it’s 5.0.1014
7 0
3 years ago
Read 2 more answers
Other questions:
  • If an object has a mass of 81 kg, what is its approximate weight on earth?
    9·1 answer
  • Can the reaction distance be a negitive?
    8·1 answer
  • A tetherball is tied to the end of a string of negligible mass. The ball is struck so that it moves in uniform circular motion i
    12·2 answers
  • Dillion takes a bottle of oil and vinegar salad dressing​
    9·1 answer
  • What Do You Already Know about Density? Material Design. Number each material and sort the items in order from lowest (1) to hig
    11·1 answer
  • Two positive point charges with charges q1 and q2 are separate by a distance of 30cm. A third positive charge qo is placed betwe
    14·1 answer
  • People have proposed driving motors with the earth's magnetic field. This is possible in principle, but the small field means th
    8·1 answer
  • Which statement best describes how resources are distributed? ​
    6·1 answer
  • A clock which has brass pendulum beats correctly at 30C will it run faster or slower if temperature increase or decrease​
    8·1 answer
  • What is chronology?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!