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2 years ago

Please help me with this! (:

Physics

1 answer:

tiny-mole [99]2 years ago

8 0

Answer:

(A) 18 km/h

Explanation:

$4.9\frac{m}{s}=4.9\cdot \frac{\frac{1}{1000}km}{\frac{1}{3600}h}=4.9\cdot3.6\frac{km}{h}=17.64\frac{km}{h}\approx18\frac{km}{h}$

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mamaluj [8]

ANSWER:

(a) 1036 N

(b) -1036 N

STEP-BY-STEP EXPLANATION:

Given:

Mc = 1400 kg

Mt = 560 kg

a = 1.85 m/s^2

(a)

Force by car on trailer:

$\begin{gathered} F_c=m\cdot a \\ F_c=560\cdot1.85 \\ F_c=1036\text{ N} \end{gathered}$

(b)

$\begin{gathered} F_t=-F_c \\ F_t=-1036\text{ N} \end{gathered}$

(c)

$\begin{gathered} F_n=1400\cdot1.85 \\ F_n=2590\text{ N} \end{gathered}$

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8 months ago

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Answer:

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Explanation:

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3 years ago

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Alpha particles, because they are the heaviest ones (helium nuclei) and will travel around the body.

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2 years ago

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Answer:

Explanation:

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Answer:

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Solution:

As per the question:

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