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
Yanka [14]
3 years ago
10

How high off the ground is a a book that has 120 J of potential energy and a 4-kg mass ​

Physics
1 answer:
RoseWind [281]3 years ago
7 0
<h2><em><u>Answer:</u></em></h2><h2><em><u>Answer:hdjfghshdhdjdjdjdiiiid</u></em></h2><h2><em><u>Answer:hdjfghshdhdjdjdjdiiiidExplanation:</u></em></h2><h2><em><u>Answer:hdjfghshdhdjdjdjdiiiidExplanation:jjejeej!jwddhhehehehryrhrrhehrjrjejejddjejeejbdbndndjdjfhfhfjddjfjfjudk!ejfjffjfjffjjdiekpskeurhfhjfhdjfjfjfjfjfnfffjfnfnfjfngbfbfnfjffffjfjfj\fmcnckffklflfkfikktkfkfkkkotkfktktktktktkttdrproekeeeeeeeeke</u></em></h2>
You might be interested in
What is the impulse needed to stop a 45-kg boy who is running at 6 m/s in 3 seconds?
Tju [1.3M]
Impulse = change of momentum
Impulse = 45 x 6 = 270 Ns
6 0
3 years ago
supose at 20 degree celsius the resistance of Tungsten thermometer is 154.9. WHen placed in a particular solution , the resistan
saw5 [17]

Answer:

T₂ = 95.56°C

Explanation:

The final resistance of a material after being heated is given by the relation:

R' = R(1 + αΔT)

where,

R' = Final Resistance = 207.4 Ω

R = Initial Resistance = 154.9 Ω

α = Temperature Coefficient of Resistance of Tungsten = 0.0045 °C⁻¹

ΔT = Change in Temperature = ?

Therefore,

207.4 Ω = 154.9 Ω[1 + (0.0045°C⁻¹)ΔT]

207.4 Ω/154.9 Ω = 1 + (0.0045°C⁻¹)ΔT

1.34 - 1 = (0.0045°C⁻¹)ΔT

ΔT = 0.34/0.0045°C⁻¹

ΔT = 75.56°C

but,

ΔT = Final Temperature - Initial Temperature

ΔT = T₂ - T₁ = T₂ - 20°C

T₂ - 20°C = 75.56°C

T₂ = 75.56°C + 20°C

<u>T₂ = 95.56°C</u>

7 0
3 years ago
A"car"initially"at"rest"experiences"a" constant"acceleration"along"a"horizontal" road."the"position"of"the"car"at"several" succe
marysya [2.9K]

In the process of peppering the question with those forty (40 !) un-necessary quotation marks, you neglected to actually show us the illustration.  So we have no information to describe the adjacent positions, and we're not able to come up with any answer to the question.

7 0
4 years ago
Explain how to find the angle between two nonzero vectors. Choose the correct answer below. A. The angle between two nonzero vec
kozerog [31]

Answer:

θ = Cos⁻¹[A.B/|A||B|]

A. The angle between two nonzero vectors can be found by first dividing the dot product of the two vectors by the product of the two vectors' magnitudes. Then taking the inverse cosine of the result

Explanation:

We can use the formula of the dot product, in order to find the angle between two non-zero vectors. The formula of dot product between two non-zero vectors is written a follows:

A.B = |A||B| Cosθ

where,

A = 1st Non-Zero Vector

B = 2nd Non-Zero Vector

|A| = Magnitude of Vector A

|B| = Magnitude of Vector B

θ = Angle between vector A and B

Therefore,

Cos θ = A.B/|A||B|

<u>θ = Cos⁻¹[A.B/|A||B|]</u>

Hence, the correct answer will be:

<u>A. The angle between two nonzero vectors can be found by first dividing the dot product of the two vectors by the product of the two vectors' magnitudes. Then taking the inverse cosine of the result</u>

3 0
3 years ago
True or false. The planet's speed never changes. That is why we have a stable orbit.
Svetradugi [14.3K]
This answer is true the earth always stays at one speed
8 0
2 years ago
Other questions:
  • On average 8 bananas make up one pound. The price is four pounds for 5.00. You must buy 25 bananas.What is your cost?
    15·1 answer
  • Determine the absolute pressure on the bottom of a swimming pool 29.0 m by 8.2 m whose uniform depth is 1.9 m . express your ans
    14·1 answer
  • Why does a shirt appear white outside on a sunny day?
    8·2 answers
  • The amount of matter (mass) in a given unit volume
    8·1 answer
  • If an object is accelerating, it is traveling the same distance for each time interval of its motion
    13·2 answers
  • The brainstem is to breathing and arousal as the limbic system is to memories and: (2 points)
    5·1 answer
  • A wire with a current of 1.31 A is to be formed into a circular loop of one turn. If the required value of the magnetic field at
    5·1 answer
  • A car's acceleration is 3m/s2. If the car started at rest and it only took 10s for the car to reach this acceleration, what is t
    15·1 answer
  • What is the difference between muscular strength and muscular endurance
    8·2 answers
  • A given wave has a wavelength of 5.0 m and a frequency of 2.0 Hz. How fast is the wave moving?A.3.0 m/sB.8.0 m/sC.10 m/sD.2.5 m/
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!