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3 years ago

Help please 10 pts and quick! can someone write me a short response

Physics

1 answer:

zmey [24]3 years ago

6 0

Answer:

Explanation:

Pecan 1 and 4 seem the best answer

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Certain meteorites have been examined and found to carry samples of which molecules?

ki77a [65]

Answer:

Sugars...

Explanation:

Several meteorites have been found to carry molecules of sugars that are essential for life. These sugars include Ribose, Arabinose and Xylose. These are found in meteorites that are rich in carbon. These significant discoveries can pave way in finding the origin of life on Earth.

6 0

3 years ago

What are the set of equations called that can be used to quantify motion in the case of uniform acceleration?

KATRIN_1 [288]

The kinematic equations are used to <span>quantify motion in the case of uniform acceleration.

The other name is : SUVAT equations, where the letters signify:
displacement (s),
initial velocity (u),
final velocity (v),
acceleration (a), and
time (t).

There are three equations are attached in the picture: </span>

7 0

4 years ago

A ball is thrown downward from the top of a building with an initial speed of 25 m/s.

Bumek [7]

Answer:

h = 69.6 m

Explanation:

Data:

Vo = 25 m/s
t = 2.0 s
g = 9.8 m/s²
h = ?

Formula:

$\boxed{\bold{h=V_{0}*t+\frac{g*(t)^{2}}{2}}}$

Replace and solve:

$\boxed{\bold{h=25\frac{m}{s}*2.0\ s+\frac{9.8\frac{m}{s^{2}}*(2.0\ s)^{2}}{2}}}$

$\boxed{\bold{h=50\frac{m}{s^{2}}+\frac{9.8\frac{m}{s^{2}}*4\ s^{2}}{2}}}$

$\boxed{\bold{h=50\ m+\frac{39.2\ m}{2}}}$

$\boxed{\bold{h=50\ m+19.6\ m}}$

$\boxed{\boxed{\bold{h=69.6\ m}}}$

The building has a height of <u>69.6 meters.</u>

Greetings.

5 0

3 years ago

In the afternoon, Adam rides his bike from his home to the mall to pick up a job application.Then he rides back home to take a n

garri49 [273]

Answer:

The magnitude of Adam's displacement is 0 m

Explanation:

Given;

Adam's distance from his home to the mall, d₁ = 1100m

then, his distance from the mall back to his home, d₂ = 1100m

Adam's displacement is given by;

Displacement = final position - initial position

Adam's displacement = d₂ - d₁

Adam's displacement = 1100 m - 1100 m = 0 m

Therefore, the magnitude of Adam's displacement is 0 m

6 0

4 years ago

A ball is thrown directly downward with an initial speed of 8.50 m/s, from a height of 29.7 m. After what time interval does it

stellarik [79]

Using the following formula for linear-motion, the missing variable can be solved:

s = Vi * t + 1/2 (a * t^2)

Where: s = displacement = 29.7 m
Vi = initial velocity = 8.5 m/s
a = acceleration = 9.8
t = time = ?

Substituting:

29.7 = 8.5t + 1/2 (9.8*t^2)
29.7 = 8.5t + 4.9t^2

Dividing both sides by 4.9:

6.06 = 1.73t + t^2
t^2 + 1.73t - 6.06 = 0
(t - 1.74)(t + 3.48) = 0
t = 1.74s

From the above values, the correct answer is 1.74 seconds.

3 0

4 years ago