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Snowcat [4.5K]
1 year ago
13

A team of engineering students is testing their newly designed raft in the pool where the diving team practices.

Physics
1 answer:
mash [69]1 year ago
6 0

Answer:

Lower than

Explanation:

When the cube is on the raft, the water displaced is equal to the weight of the cube and raft.  When the cube is in the water, the water displaced is equal to the weight of the raft, plus the volume of the cube.  Since the volume of the cube is less than the volume of water needed to displace its weight, the water level is lower.

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De Vico Comet orbits the Sun every 74.0 years and has an orbital eccentricity of 0.96. Find the comet's average distance from th
Debora [2.8K]

Answer: The comet's average distance from the sun is 17.6AU

Explanation:

From Kepler's 3rd Law, P^2=a^3

Where P is period in years

and a is length of semi-major axis or the average distance of the comet to the sun.

Given the orbital period to be 74 years

74^2 =a^3

5476 = a^3

Cube root of 5476 =a

17.626 = a

Approximately a= 17.6 AU

5 0
2 years ago
A car is moving on a straight road in a fixed direction at a constant speed of v = 62 km/h with respect to the road. You wish to
Angelina_Jolie [31]

Answer:

A) V=62 i + 0 j + 0 k

B) X=0.93 km

Explanation:

A) In this situation we are talking about a car moving only in the X- axis, hence the velocity of the car is:

V=62 i + 0 j + 0 k

Where the unit vectors i, j and k represent the components x, y and z in the cartesian plane.

In this sense, each unit vector is defined to have a magnitude of exactly one (1).

B) Velocity is defined as the variation of position in time, if this car is moving only along the x direction we will have:

V=\frac{X}{t}

Clearing the position:

X=V.t

X=(62 km/h)(0.015 h)

X=0.93 km

5 0
2 years ago
The desperate contestants on a TV survival show are very hungry. The only food they can see is some fruit hanging on a branch hi
emmasim [6.3K]

Answer:

(a) v = 15m/a

(b) No they won't feast because the rock can only rise to a height of 11.5m which is less than 15m.

Explanation:

Please see the attachment below for film solution.

6 0
1 year ago
ANSWER BELOW QUESTIONS:
Bogdan [553]

Answer:

why should we do , do by your own , no sense

Explanation:

3 0
1 year ago
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If electromagnetic radiation a has a lower frequency than electromagnetic radiation b the wavelength of a is
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Inversely proportional to its frequency. If electromagnetic radiation A has a lower frequency than electromagnetic B, then compared to B, the wavelength of A is...? - equal - shorter - longer - exactly half the length of
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1 year ago
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