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
Anna35 [415]
3 years ago
6

Someone please help meee

Physics
2 answers:
Travka [436]3 years ago
6 0

Answer:

The color of the substance.

Explanation:

The color. (I think, it should be right because color shouldn't affect it.)

cricket20 [7]3 years ago
4 0

Answer: Your right its ( The pressure of the substance)

Explanation: MArk me as brainlisti

You might be interested in
In the ___________ biome, plants typically have deep roots, reduced leaves, and photosynthetic stems.
Yakvenalex [24]
The Desert Biome is your answer. They have deep roots because it receives little to no rainfall
3 0
3 years ago
Read 2 more answers
A neutral atom as the same number of protons and electrons.
ZanzabumX [31]

That is correct. Or so I believe. Either more or less than the other on the amount of protons and electrons, you can get either an unstable or a stable atom of an element.

6 0
3 years ago
A ball is launched from a 300m cliff and lands 380m away from the cliff in 9 seconds. Calculate the initual speed and the angle
Marysya12 [62]

Answer:

Explanation:

Given

Maximum height H = 300m

Range (horizontal distance) = 380m

Required

Initial speed U and the angle of the ball when it was launched.​

Range = U√2H/g

380 = U√2(300)/9.8

380 = U√600/9.8

380 = 7.8246U

U = 380/7.8246

U = 48.57m/s

The initial speed is 48.57m/s

b) Using the formula for calculating time of flight;

T = 2Usin theta/g

9 = 2(48.57)sin theta/9.8

9*9.8 = 97.14sin theta

88.2 = 97.14sin theta

88.2/97.14 = sin theta

sin theta = 0.9079

theta = sin^-1(0.9079)

theta = 65.23°

hence the angle when the ball was launched is 65.23°

6 0
2 years ago
The frequency of a sound wave corresponds to its
ladessa [460]
Medium I think


Hahah
6 0
3 years ago
Given vectors D (3.00 m, 315 degrees wrt x-axis) and E (4.50 m, 53.0 degrees wrt x-axis), find the resultant R= D + E. (a) Write
fomenos

Answer:

(a) \vec{R}= 4.83\ m\ \hat{i}+1.47\ m\ \hat{j}

(b) (5.05 m, 16.93 degrees wrt x-axis)

Explanation:

Given:

  • \vec{D} = (3.00 m, 315 degrees wrt x-axis)
  • \vec{E} = (4.50 m, 53.0 degrees wrt x-axis)

Let us first fond out vector D and E in their rectangular form.

\vec{D} = (3\cos 315^\circ\ \hat{i}+3\sin 315^\circ\ \hat{j})\ m\\\Rightarrow \vec{D} = (2.12\ \hat{i}-2.12\ \hat{j})\ m\\

Similarly,

\vec{E} = (4.5\cos 53^\circ\ \hat{i}+4.5\sin 53^\circ\ \hat{j})\ m\\\Rightarrow \vec{D} = (2.71\ \hat{i}+3.59\ \hat{j})\ m\\\because \vec{R}=\vec{D}+\vec{E}\\\therefore \vec{R} = (2.12\ \hat{i}-2.12\ \hat{j})\ m+(2.71\ \hat{i}+3.59\ \hat{j})\ m\\\Rightarrow \vec{R} = (4.83\ \hat{i}+1.47\ \hat{j})\ m

Part (a):

We can write the resultant vector R as below:

\vec{R} = (4.83\ \hat{i}+1.47\ \hat{j})\ m

Part (b):

Magnitude\ of\ resultant = \sqrt{4.83^2+1.47^2}\ m = 5.05\ m\\\textrm{Direction in angle with the x-axis} = \theta = \tan^{-1}(\dfrac{1.47}{4.83})= 16.93^\circ

Since both the components of the resultant lie on the positive x and y axes. So, the resultant makes an acute angle with the positive x-axis.

So, R = (5.05 m, 16.93 degrees wrt x-axis)

3 0
2 years ago
Other questions:
  • What number is neutrons protons electrons of helium
    5·1 answer
  • You measure the voltage difference of a circuit to be 5 V and the resistance to be 1,000 ohms.
    8·1 answer
  • A farmer mated two ducks. They produced three offspring. Two of the offspring were then selected to mate with each other because
    12·1 answer
  • Which snack is an excellent choice for protein, B vitamins, vitamin E, and healthful fat
    6·2 answers
  • Install webroot mac +1 (888)(210)(2883) install webroot macbook pro
    14·1 answer
  • Which substances resist pH changes? <br> Acids<br> Hydrogen ions<br> Buffers<br> Bases
    7·2 answers
  • Suppose a child drives a bumper car head on into the side rail, which exerts a force of 3400 N on the car for 0.400 s. (Assume t
    10·1 answer
  • Julie and Ashwin were doing an experiment in the classroom. They
    9·1 answer
  • when you're in your house and hear a car drive by outside, how many different mediums do sound waves from the car engine have to
    11·1 answer
  • .Golden Rice is an example of genetically modified organism. <br> true or false
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!