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3 years ago

A small child has a wagon with a mass of 10 kilograms. The child pulls on the wagon with a force of

Physics

2 answers:

Elena L [17]3 years ago

5 0

Answer:

the Correct answer is 0.2

Explanation:

Sholpan [36]3 years ago

4 0

$F=ma$
where:
F - force
m - mass
a - acceleration

We transform this formula to get a:
$a= \frac{F}{m}$
$a=\frac{2}{10}\frac{N}{kg}=0.2\frac{m}{s^{2}}$

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In which type of transistor does current flow from the base to the emitter?

dimulka [17.4K]

The anwser would be A
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3 years ago

Read 2 more answers

The risks and expense of manned deep-water exploration must be balanced with____________.

ehidna [41]

Answer:

The risks and expense of manned deep water exploration must be balanced with the knowledge that will be gained.

Explanation:

6 0

3 years ago

A single strain gage has a nominal resistance of 120 ohm. For a quarter bridge with 120 ohm fixed resistors, strain gauge factor

natita [175]

Answer:

Output voltage is 1.507 mV

Solution:

As per the question:

Nominal resistance, R = $120\Omega$

Fixed resistance, R = $120\Omega$

Gauge Factor, G.F = 2.01

Supply Voltage, $V_{s} = 3\ V$

Strain, $\epsilon = 1000\times 10^{-6}\ strain$

Now,

To calculate the output voltage, $V_{o}$ :

WE know that strain is given by:

$\epsilon = \frac{(R + R')^{2}V_{o}}{RR'V_{s}\times G.F}$

Thus

$V_{o} = \frac{RR'V_{s}\epsilon \times G.F}{(R + R')^{2}}$

Now, substituting the suitable values in the above eqn:

$V_{o} = \frac{120\times 120\times 3\times 1000\times 10^{-6}\times 2.01}{(120 + 120)^{2}}$

$V_{o} = 1.507\ mV$

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4 years ago

A 9500 kg boxcar traveling at 14 m/s strikes a stationary second car. The two stick together and move off with a speed of 6.0 m/

jasenka [17]

<u>Answer:</u> The mass of the second car is 12666.7 kg

<u>Explanation:</u>

To calculate the mass of car, we use the equation of law of conservation of momentum, which is:

$m_1u_1+m_2u_2=(m_1+m_2)v$

where,

$m_1$ = mass of car 1 = 9500 kg

$u_1$ = Initial velocity of car 1 = 14 m/s

$m_2$ = mass of car 2 = ? kg

$u_2$ = Initial velocity of car 2 = 0 m/s

$v$ = Final velocity = 6.0 m/s

Putting values in above equation, we get:

$(9500\times 14)+(m_2\times 0)=(9500+m_2)6.0\\\\m_2=\frac{9500\times 14}{6}-9500=12666.7kg$

Hence, the mass of the second car is 12666.7 kg

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4 years ago

To understand the photoelectric effect physiciests should view light as having what type of properties?

fenix001 [56]

Answer:

Particle

Explanation:

To understand photoelectric effect the physicists has to view light as a particle and not wave. The wave nature of the light could not explain the phenomenon of photoelectric effect.

Photoelectric effect is emission of electrons from a material when electromagnetic radiation(Light) is incident on it. These emitted electrons are called photoelectrons.

The explain this effect Einstein proposed that beam of light is can not be a wave propagating through space, but a swarm of discrete energy packets, called as photons.

5 0

3 years ago