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irina [24]
3 years ago
5

Explain percentage error​

Physics
1 answer:
skelet666 [1.2K]3 years ago
6 0

Answer:

Percent error (percentage error) is the difference between an experimental and theoretical value, divided by the theoretical value, multiplied by 100 to give a percent

Explanation:

found this off google

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Heyyy can someone help me plz
beks73 [17]

Explanation:

W = mg

= (0.454 kg)(9.8 m/s^2)

= 4.45 N

5 0
3 years ago
Which type of map best shows the three dimensions of Earth’s surface?
siniylev [52]

Answer:

please give me brainlist and follow

Explanation:

topographic map

A topographic map shows a three-dimensional representation of a flat surface. It has contour lines joining points of equal elevation; the closer the lines are the steeper the elevation is.

3 0
3 years ago
Describe how switching the desk lamp on and off shows that light waves transfer energy
gregori [183]
<span>Light waves travels through electromagnetic radiation when we switch on the lamp, vibrations of electric and magnetic fields will release energy to its surrounding environment. Which the reason why the area around the lamp will feel warmer when we light it up.</span>
8 0
4 years ago
An object of mass kg is released from rest m above the ground and allowed to fall under the influence of gravity. Assuming the f
IgorLugansk [536]

Answer:

Explanation:

From, the given information: we are not given any value for the mass, the proportionality constant and the distance

Assuming that:

the mass = 5 kg and the proportionality constant = 50 kg

the distance of the mass above the ground x(t) = 1000 m

Let's recall that:

v(t) = \dfrac{mg}{b}+ (v_o - \dfrac{mg}{b})^e^{-bt/m}

Similarly, The equation of mption:

x(t) = \dfrac{mg}{b}t+\dfrac{m}{b} (v_o - \dfrac{mg}{b}) (1-e^{-bt/m})

replacing our assumed values:

where v_=0 \ and \ g= 9.81

x(t) = \dfrac{5 \times 9.81}{50}t+\dfrac{5}{50} (0 - \dfrac{(5)(9.81)}{50}) (1-e^{-(50)t/5})

x(t) = 0.981t+0.1 (0 - 0.981) (1-e^{-(10)t}) \ m

\mathbf{x(t) = 0.981t-0.981(1-e^{-(10)t}) \ m}

So, when the object hits the ground when x(t) = 1000

Then from above derived equation:

\mathbf{x(t) = 0.981t-0.981(1-e^{-(10)t}) \ m}

1000= 0.981t-0.981(1-e^{-(10)t}) \ m

By diregarding e^{-(10)t} \ m

1000= 0.981t-0.981

1000 + 0.981 = 0.981 t

1000.981 = 0.981 t

t = 1000.981/0.981

t = 1020.36 sec

7 0
3 years ago
Identify the method of thermal energy transfer.
Solnce55 [7]

Answer:

A: Conduction

B: Convection

C: Radiation

Explanation:

Conduction is the transfer of heat in internal energy by microscopic collisions of particles and movement of electrons within a body so from the fire hitting the metal. Convection is the heat transfer due to the bulk movement of molecules within fluids such as gases and liquids so the water boiling in the pot. Radiation is the handle heating up due to the heat interacting with it.

5 0
4 years ago
Read 2 more answers
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