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3 years ago

A bike travels at a constant speed of 4.0m/s for 5 seconds. How far it goes ?

Physics

2 answers:

Y_Kistochka [10]3 years ago

7 0

Answer:

Distance, d = 20 meters

Explanation:

It is given that,

Speed of the bike, v = 4 m/s

Time taken, t = 5 sec

We need to find the distance covered by the bike during this time. The distance covered by bike is calculated by the product of speed and time

d = v × t

d = 4 × 5

d = 20 meters

So, the bike will go to a distance of 20 meters. Hence, this is the required solution.

alex41 [277]3 years ago

3 0

The speed of 4m/s means that the bike goes 4 meters for each second of movement. Multiplying this by 5 seconds we have a total distance travelled of 20m.

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Answer:

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2 years ago

What is the mechanical advantage of the wheel and axle shown below?

BigorU [14]

The correct answer is A. 32.5

Mechanical advantage is the ratio of force that is input into a machine to the force output.

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3 years ago

Read 2 more answers

The diagram below shows a periodic wave. Which two points on the wave are 180 degrees out of phase?

Ksju [112]

Answer:

A and C are 180 deg out of phase (opposite points on a 360 deg wave)

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3 years ago

Which statement about an atom is correct?

Alexus [3.1K]

Answer:

$\boxed{ \sf{The \: electron \: has \: a \: negative \: charge \: and \: is \: found \: outside \: of \: the \: nucleus}}$

Option A is correct

Explanation:

Let's check the options:

A: The electron has a negative charge and is found outside of the nucleus.

$\mapsto{}$ Yeah! It's TRUE . An electron is a negatively charged particle and is located outside the nucleus of an atom.

B : The neutron has a negative charge and is found in the nucleus.

$\mapsto{}$ No! It's FALSE . A neutron carries no charge. i.e it is a neutral particle and found inside the nucleus.

C : The proton has no charge and is found in the nucleus.

$\mapsto{}$ No! It's FALSE.A proton is a positively charged particle present inside nucleus of an atom.

D : The neutron has no charge and is found outside of the nucleus.

$\mapsto{}$ I agree that the neutron has no charge. But it is found inside the nucleus not outside . So, this statement is FALSE .

Hence, we found our answer! :D

A. The electron has a negative charge and is found outside of the nucleus is the correct statement about an atom.

Hope I helped!

Best regards! :D

~ $\text{TheAnimeGirl}$

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2 years ago

if 100 kilojoules of energy is used to heat 500 grams of water what is the temperature change of the water

Serjik [45]

Answer:

47.8 °C

Explanation:

Use the heat equation:

q = mCΔT

where q is the heat absorbed/lost,

m is the mass of water,

C is the specific heat capacity,

and ΔT is the change in temperature.

Here, q = 100 kJ, m = 0.5 kg, and C = 4.184 kJ/kg/°C.

100 kJ = (0.5 kg) (4.184 kJ/kg/°C) ΔT

ΔT = 47.8 °C

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3 years ago