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Bess [88]
3 years ago
8

What is the mass of an object that requires a force of 182 N to accelerate at a rate of 13 m/s?

Physics
1 answer:
Inga [223]3 years ago
6 0

Answer:

m=14kg

Explanation:

Hello.

In this case, since the force is defined in terms of the mass and acceleration by:

F=m*a

We can easily compute the mass by solving for it:

m=\frac{F}{a}

Whereas the force is 182 N (kg*m/s²) and the acceleration is 13 m/s², therefore, we obtain:

m=\frac{182kg\frac{m}{s^2} }{13\frac{m}{s^2}}\\\\m=14kg

Best regards.

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You're caught running a red light on Hwy 316. Attempting to impress the skeptical patrol officer with your physics knowledge, yo
kykrilka [37]

Answer

given,

wavelength of the red light,λ = 687 nm

wavelength of the yellow light = 582 nm

Frequency of red light

=\dfrac{v}{\lambda}

=\dfrac{3\times 10^8}{687\times 10^{-9}}

= 4.36 x 10¹⁴ Hz

frequency of the yellow light

=\dfrac{3\times 10^8}{582\times 10^{-9}}

= 5.15 x 10¹⁴ Hz

speed of the car

f = f_o(\dfrac{c+v_r}{c})

v_r is the required speed.

5.15\times 10^{14}=4.36\times 10^{14}(\dfrac{c+v_r}{c})

v_r = 0.19 c

v_r = 0.19 x 3 x 10⁸ =5.7 x 10⁷ m/s

1 m/s = 2.23694 mile/hr

v_r = 1.27 x 10⁸ mile/hr

if the light is actually yellow

f₀ = 5.15 x 10¹⁴ Hz

f =5.15\times 10^{14}(\dfrac{c+0.19c}{c})

f = 6.13 x 10¹⁴ Hz

wavelength corresponding to this frequency is wavelength = 493.2 nm

hence, the color corresponding to this wavelength is Green.

3 0
3 years ago
Driving along a crowded freeway, you notice that it takes a time t to go from one mile marker to the next. When you increase you
djverab [1.8K]
From the first condition
1 = vo t

From the second condition
1 = 8.2 (t - 12/60)

The time it takes to travel 1 mile in the second condition is
t = 0.32 hr

The original speed is
1 = vo (0.32)
vo = 3.13 mi/h
5 0
3 years ago
Read 2 more answers
Explain the Law of Reflection
DanielleElmas [232]

Answer:

The angle of incidence is equal to the angle of reflection.

Explanation:

angle of incidence (i) = angle of reflection (r)

So if the angle of incidence was 45°, the angle of reflection would also be 45°.

8 0
2 years ago
Which of the following must ALWAYS be equal to the buoyant force on an object?
professor190 [17]

Answer:

A

Explanation:

I’m not sure but I hope this helped

8 0
2 years ago
A series AC circuit contains a resistor, an inductor of 150 mH, a capacitor of 5.00 mF, and a generator with DVmax 5 240 V opera
yanalaym [24]

Given:

Inductance, L = 150 mH

Capacitance, C = 5.00 mF

\Delta V_{max} = 240 V

frequency, f = 50Hz

I_{max} = 100 mA

Solution:

To calculate the parameters of the given circuit series RLC circuit:

angular frequency, \omega =  2\pi f = 2\pi \times50 = 100\pi

a). Inductive reactance,  X_{L} is given by:

\X_{L} = \omega L = 100\pi \times 150\times 10^{-3} = 47.12\Omega

X_{L} = 47.12\Omega 

b). The capacitive reactance,  X_{C} is given by:

\X_{C} = \frac{1}{\omega C} = \frac{1}{2\pi fC} = \frac{1}{2\pi \times 50\times 5.00\times 10^{-3}} = 0.636\Omega

X_{C} = 0.636\Omega

c). Impedance, Z = \frac{\Delta V_{max}}{I_{max}} = \frac{240}{100\times 10^{-3}} = 2400\Omega

Z = 2400\Omega

d). Resistance, R is given by:

Z = \sqrt {R^{2} + (X_{L} - X_{C})}

2400^{2} = R^{2} + (47.12 - 0.636)^{2}

R = \sqrt {5757839.238}

R = 2399.5\Omega

e). Phase angle between current and the generator voltage is given by:

tan\phi = \frac{X_{L} - X_{C}}{R}

\phi =tan^{-1}( \frac{X_{L} - X_{C}}{R})

\phi =tan^{-1}( \frac{47.12 - 0.636}{2399.5}) = tan^{-1}{0.0.01937}

\phi = 1.11^{\circ}

5 0
3 years ago
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