3 years ago

What are some ways living things can be grouped

Physics

1 answer:

marta [7]3 years ago

6 0

Living things can be grouped into five main groups called kingdoms: plants, animals, fungi, Protoctista and Monera.

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Momentum of an object is determined to be 7.2 ×10 to the negative 3 kg

abruzzese [7]

Answer:

0.0072

Explanation

7.2x10^-3= 0.0072

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3 years ago

two object gravitationally attract with a force of 20N.if the distance between the two object centers is doubled, then what is t

Usimov [2.4K]

Gravity decreases with the square of the distance, so the new force is (20)/(2*2) = 5N.

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3 years ago

A car hits another and the two bumpers lock together during the collision. is this an elastic or inelastic collision?

valkas [14]

Inelastic.
If it was elastic, they'd bump right off each other. But since they've been locked, or stuck together, this is inelastic.

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3 years ago

A 0.250 kg block on a vertical spring with spring constant of 4.45 ✕ 103 N/m is pushed downward, compressing the spring 0.080 m.

Elza [17]

Answer:h=5.81 m

Explanation:

Given

Mass of block(m)=0.250 kg

Spring Constant $k=4.45\times 10^3 N/m$

Initial elongation =0.080 m=8 cm

Thus Initial Potential Energy stored =Final Potential Energy stored in Block

$P_i=\frac{kx^2}{2}$

$P_i=\frac{4.45\times 10^3\times 64\times 10^{-4}}{2}=14.24 J$

$P_f=mgh=0.25\times 9.8\times h$

$P_i=P_f$

$14.24 =0.25\times 9.8\times h$

$h=\frac{14.24}{0.25\times 9.8}=5.81 m$

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3 years ago

Distance from any point on a wave to an identical point on the next wave?

lesantik [10]

It's called the "Wavelength". It corresponds to <span>the distance from any point on a wave to an identical point on the next wave and could also be from crest to crest or trough to trough.

Hope this helps !

Photon</span>

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3 years ago