1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tia_tia [17]
3 years ago
7

Answer my question plzz !!any body

Physics
1 answer:
Mice21 [21]3 years ago
4 0

Answer:

The height is 80 meters.

Explanation:

The equation for the distance in the second segment of the fall is as below. In it, we use the initial velocity v1 that the ball had after completing the first segment. From this equation, v1 can be determined:

h_2 = \frac{1}{2}gt_2^2+v_1t_2=0.5\cdot 10\frac{m}{s^2}\cdot 4 s^2+v_1\cdot 2 s=60m\implies\\v_1 = 20\frac{m}{s}

Next, we use the kinematic equation for velocity at the end of the first segment of a free fall, to determine h1:

v_1^2 = 2gh_1+v_0^2 = 2gh_1\implies h_1 = \frac{v_1^2}{2g}=20m

The total height is then

h = h_1 + h_2 = 20m + 60 m = 80m

You might be interested in
What will it be ? Plz help me
IgorC [24]

Answer:

For number 2, it will be 8.

3 0
2 years ago
A body has translatory motion if it moves along a
Ierofanga [76]
<span>A body has translatory motion if it moves along a: mcqs </span>
8 0
3 years ago
How do you think cotton, tobbaco, and other crops were shipped to their destination
Effectus [21]
I think it was by boat and coming from over seas
6 0
3 years ago
Read 2 more answers
The sun is 150,000,000 km from the earth.
aniked [119]

Answer:

<h3>What is the angular speed of the earth around the sun? </h3>

It takes the Earth approximately 23 hours, 56 minutes and 4.09 seconds to make one complete revolution (360 degrees). This length of time is known as a sidereal day. The Earth rotates at a moderate angular velocity of

7.2921159 × 10 {}^{ - 5}  \:  \:  \frac{radians}{second}

<h3>What is the tangential speed of the earth? </h3>

The earth rotates once every 23 hours, 56 minutes and 4.09053 seconds, called the sidereal period, and its circumference is roughly 40,075 kilometers. Thus, the surface of the earth at the equator moves at a speed of 460 meters per second--or roughly 1,000 miles per hour.

8 0
3 years ago
On the surface of the earth the weight of an object is 200 lb. Determine the height of the
siniylev [52]

Answer:

The height of the  object is 5007.4 miles.

Explanation:

Given that,

Weight of object = 200 lb

We need to calculate the value of Gmm_{e}

Using formula of gravitational force

F=\dfrac{Gmm_{e}}{r^2}

Put the value into the formula

200=\dfrac{Gmm_{e}}{(3958.756)^2}

200\times(3958.756)^2=Gmm_{e}

Gmm_{e}=3.134\times10^{9}

We need to calculate the height of the  object

Using formula of gravitational force

F=\dfrac{Gmm_{e}}{r^2}

Put the value into the formula

125=\dfrac{200\times(3958.756)^2}{r^2}

r^2=\dfrac{200\times(3958.756)^2}{125}

r^2=25074798.5

r=\sqrt{25074798.5}

r=5007.4\ miles

Hence. The height of the  object is 5007.4 miles.

7 0
3 years ago
Other questions:
  • The magnitude of an electron's charge is e=1.60\times 10^{-19}\,\text{C}e=1.60×10 −19 Ce, equals, 1, point, 60, times, 10, start
    10·1 answer
  • A soccer player kicks a ball down the field. It rolls to a stop just before the goal. Which statement accurately describes the m
    15·1 answer
  • WILL MARK BRAINLIEST <br> How do you convert Farenheit to Celcius<br> and Celcius to Farenheit
    7·2 answers
  • Which statement is true about alkali metals? A. Some of them explode when exposed to water. B. They are in group 18 of the perio
    5·2 answers
  • What is the formula for calculating the force and acceleration of an object?{physical science}:)
    8·1 answer
  • A scientist observed the formation of hundreds of maggots and many flies on a rotting meat slice exposed to the environment. Wha
    12·1 answer
  • When a certain isotope, such as U-238, is hit by a neutron, it will always split into the same smaller nuclei.
    14·2 answers
  • A truck hits a brick wall with a force of 100000 kg ms² the truck comes to a stop in 0.5 s what is the impulse
    12·1 answer
  • Do it in order. <br> from smallest to largest
    7·1 answer
  • Perform the following mathematical operation and report answer to the correct number of significant figures 143.6 divided by 21.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!