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
vovangra [49]
3 years ago
13

Anyone know the answer to this, would kindly appreciate it

Physics
1 answer:
Ipatiy [6.2K]3 years ago
6 0

Answer:

The found value of r is:

r = 94.7

Explanation:

We know that

cosθ = Base / Hypotenuse

θ is the always the angle between base and hypotenuse

In this right angles triangle, the angle θ is given 63°.

Which means that the Base is 43 and the hypotenuse is r

Base = 43

Hypotenuse = r

Substitute θ=63°, Base = 43 and hypotenuse = r in the formula of cosθ mentioned above:

cos 63° = 43/r

Rearrange

r = 43/cos63°

r = 43/0.454

r= 94.7

You might be interested in
A small metal bead, labeled A, has a charge of 26 nC . It is touched to metal bead B, initially neutral, so that the two beads s
adell [148]

Answer:

q_A=25.953\ \rm nC

q_B=0.047\ \rm nC

Explanation:

Given:

  • Total initial charge on bead A=26 nC
  • The distance between them=5 cm
  • Magnitude o the force between them =4.4\times10^{-4}

Using coulombs law the force between two charged particle is \dfrac{q_Aq_B}{4\pi \epsilon_0 r^2}

where r is the radial distance between them

According to question we have

4.4\times10^{-4}=\dfrac{q_Aq_B\times9\times10^9}{0.05^2}\\\\4.4\times10^{-4}=\dfrac{q_A(q_A-26\times10^{-9})\times9\times10^9}{0.05^2}\\q_A=25.953\ \rm nC\\q_B=0.047\ \rm nC

Hence the charge on two metal beads is calculated.

5 0
3 years ago
How is an appliance's power related to the amount of energy it uses?
zysi [14]
The more powerful an appliance is, the more amounts of energy it uses. For instance a jack hammer that does not create a lot of destruction or change does not use a lot of energy. If a jack hammer that creates a lot of destruction and change probably uses a lot more energy and makes more sound.
6 0
3 years ago
The Sun's energy comes from which nuclear reaction? O A. Two nuclei joining to form a larger nucleus OB. Two nuclei giving off a
BlackZzzverrR [31]

Answer:

Nuclear Fusion reactions power the Sun and other stars. In a fusion reaction, two light nuclei merge to form a single heavier nucleus. The process releases energy because the total mass of the resulting single nucleus is less than the mass of the two original nuclei.

Explanation:

6 0
3 years ago
Read 2 more answers
80 POINT!!!!! IT'S WORTH IT!!!!!
alexandr402 [8]

because blah blah blah blah

3 0
3 years ago
1) Calculate the potential energy of a 5.00 kg object sitting on a 3.00 meter high ledge.
maria [59]

Answer:

15kg

Explanation:

5 0
3 years ago
Other questions:
  • A small bag of sand is released from an ascending hot-air balloon whose upward constant velocity is v0 = 2.45 m/s. knowing that
    6·1 answer
  • Janet wants to find the spring constant of a given spring, so she hangs the spring vertically and attaches a 0.61 kg mass to the
    10·1 answer
  • URNOW Lidl llIIS 15 TIUta WiCluie U water!<br> ify-What two kinds of matter are pure substances?
    14·1 answer
  • An acrobat of mass mA jumps upwards off a trampoline with an initial speed v0. At a height h0, the acrobat grabs a clown of mass
    9·1 answer
  • Suppose you are testing different soils to determine which grows healthier bean plants. You count and record the number of leave
    13·2 answers
  • Whoever answer this chart gets mark the brainliest and a whole bunch if points
    10·1 answer
  • Is Throwing a baseball and a football Newton's 2nd law of motion ?
    5·2 answers
  • VP 3.12.1 Part APart complete A cyclist going around a circular track at 10.0 m/s has a centripetal acceleration of 5.00 m/s2. W
    5·1 answer
  • What characteristics determine how easily two substances change temperature
    10·1 answer
  • Describe the best way to identify the constellation Cassiopeia.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!