A small mass is released from rest at a very great distance from a larger stationary mass. Draw a graphs best represents the gravitational potential energy U of the system of the two masses as a function of time T.

Answer:

Gravity and Friction

Explanation:

How gravity and friction work which u probably know

Answer:

No it is Not because win ratio is differs say Ohio only won 7 out of 7 games and e

was in the playoffs while Alabama won 11 out of 11 games so it is harder to win 11 out of 1a games and it is easier to win 7 out of 7

Explanation:  would like brainliest but u don’t have to

Answer:

Force

Explanation:

Answer:

It looks like a total of 9 meters

Explanation:

the dot on the graph for 1910 sits JUST below the mark for 10 meters

Answer:

Time displayed on clock at the front of car is 12:00 noon

Explanation:

According to the question the Time displayed on rear clock of the car displays 12:00 noon.

since car has maximum speed of car is 100 m/s

i.e., they does not move with relativity speed

hence there will be no time dilation in time

Therefore, Time displayed on clock at the front of car is 12:00 noon

Answer:

look it tilts and light

Answer:

A tropical year, also known as a solar year, an astronomical year, or an equinoctial year, is, on average, approximately 365 days, 5 hours, 48 minutes and 45 seconds long.

Explanation:

Answer:

V = 15m/s

Explanation:

Given the following data;

Initial velocity = 3m/s

Time = 8secs

Acceleration = 1.5m/s²

To find the final velocity, we would use the first equation of motion;

V = U + at

Substituting into the equation, we have

V = 3 + 1.5*8

V = 3 + 12

V = 15m/s

Answer:

Second stone hist at 4.08 s later.

Explanation:

The second stone straight up, so we need to find the rise and descent time.

[tex]v_{f}=v_{i}-gt[/tex]

At the top, the final speed is 0 and t is the rise time.

[tex]0=20-gt_{r}[/tex]

[tex]t_{r}=\frac{20}{9.81}[/tex]

[tex]t_{r}=2.04 s[/tex]

Let's recall that the rise time is equal to the descent time.

So the total time of the stone will be

[tex]t_{t}=4.08 s[/tex]

Now, the second stone hits the street in t2 = 4.08 s + t1 s

But we just need the time after the first stone hist the street. So we just subtract the time t1 to the second time t2, which means t2 = 4.08 s.

Therefore stone hist at 4.08 s later.

The second stone hits the wall 4.08 seconds later.

To solve this question, we will use the equation of motion. In particular, the first equation of motion which states that;

v = u + at, where

v = the final velocity

u = the initial velocity

a = acceleration of gravity

t = time taken by the stone.

From the question, we're told that the stone is thrown with a speed of 20 m/s, which is the initial velocity. And a final velocity, v of 0 m/s. Using a constant of 9.81 for acceleration of the stone. We have,

0 = 20 - 9.81 × t

20 = 9.81t

t = [tex]\frac{20}{9.81}[/tex]

t = 2.039or 2.04 seconds.

Assuming that the time taken to ascent = time taken to descent, this means that the total time taken will be 2.039 + 3.039 = 4.078 seconds or 4,08 seconds.

visit https://brainly.com/question/24040430 to learn more about the first equation

Explanation:

Two atoms with equal masses, m, and equal speed, v, engage in a head on elastic collision. Since, the two atoms both having equal masses and equal but opposite velocity, the total linear momentum of the system is zero. Therefore, conservation of linear momentum to be conserved , the velocities before and after collision are same. Similarly, in elastic collision total kinetic energy is also conserved. The kinetic energy before and after collision are same.

Answer:

Weight of honey required to fill bath tub  is 435kg

Honey is 1.45 times heavier than water

Explanation:

Rough volume of a bathtub is 300 litres

density of honey is 1.45 kg/L

Density of honey in bath tub is given by

[tex]\rho = \frac{mass}{volume}[/tex] where, mass is the weight of honey in bath tub and volume is volume of bath tub

on substituting the given values in above equation we get

1.45 = [tex]\frac{mass}{300}[/tex]

⇒1.45 x 300 = mass of honey in bath tub or weight of honey

⇒ weight of honey required to fill bath tub  is 435kg

density of water is 0.997 kg/L

therefore for the same amount of volume the ratio of weight of honey to water is equal to ratio of density of honey to water

∴ [tex]\frac{W_h}{W_w} = \frac{\rho_h}{\rho_w}[/tex]

on substituting the value of densities we get

[tex]\frac{W_h}{W_w} = \frac{1.45}{1}[/tex]

⇒ honey is 1.45 times heavier than water

Answer:

presence of salt in oceanic water makes 97 of the water on the earth unfit for drinking

Answer:

13.2m

Explanation:

Step one:

given data

Energy= 5610J

Force F= 425N

Required

The distance traveled

Step two:

We know that work done is given as

WD= force* distance

so

5610=425*d

divide both sides by 425

d= 5610/425

d=13.2m

Answer:

r = 31.8

Explanation:

To start with, we make the following assumptions. Let

r be the radius of semicircular end

l be the length of straight section

a be the area inside track, then

p = 2πr + 2l = 400

a = πr² + 2rl

2πr + 2l = 400

l = 200 - πr, substituting for l in area,

a = πr² + 2r(200 - πr)

a = πr² + 400r - 2πr²

a = 400r - πr²

In order to find our minimum area, we differentiate with respect to r and then it equate to zero

da/dr = 400 - 2πr = 0

r = 200/π, substituting for r in equation for l,

l = 200 - πr

l = 0 m

And since this is not possible, l must be 100 m (the minimum), and

r = (200 - 100)/π

r = 100/π = 31.8 m

Answer:

P = 510 Ns

Explanation:

Momentum is defined as the quantity of motion contained in a body. Mathematically momentum is defined as the product of mass and the velocity of the body. So in order to find out the momentum of the referee after the collision with the football player, we can use the following formula:

[tex]P = mv\\[/tex]

where,

P = Momentum of the referee after the collision = ?

m = mass of the referee = 85 kg

v = speed of the referee after collision = 6 m/s

Therefore,

[tex]P = (85\ kg)(6\ m/s)[/tex]

P = 510 Ns

Answer:

there round that's one thing

Answer:

large size, number of moons, lack solid surfaces and none are capable of supporting life.

Explanation:

Answer:

B

Explanation:

Just answerd that question!!!

Hope it helped!!!

.

Answer:

Rhythmic Gymnastics

Explanation:

Answer:

Amplitude.

Explanation:

Radio waves can be defined as an electromagnetic wave that has its frequency ranging from 30 GHz to 300 GHz and its wavelength between 1mm and 3000m. Therefore, radio waves are a series of repetitive valleys and peaks that are typically characterized of having the longest wavelength in the electromagnetic spectrum.

Basically, as a result of radio waves having long wavelengths, they are mainly used in long-distance communications such as the carriage and transmission of data. Some examples of communication technologies that uses radio waves are radio set, mobile phones, television etc.

For a wave, an amplitude is defined as the maximum height of a crest, or depth of a trough, relative to the normal level

Answer:

Unit of G = m³/kg s²

Explanation:

The force of gravitational attraction is represented by the equation.

[tex]F=G\dfrac{m_1m_2}{r^2}[/tex]

F is the magnitude of the gravitational attraction on either body

m₁ and m₂ are the masses of the bodies, r is the distance between them. G is the gravitational constant.

We need to find the unit of G.

Rearranging the above formula for G.

[tex]G=\dfrac{Fr^2}{m_1m_2}[/tex]

Putting units of F,m and r such that,

[tex]G=\dfrac{N\times m^2}{kg^2}\\\\\because N=kgm/s^2\\\\G=\dfrac{kg\times m\times m^2}{kg^2\times s^2}\\\\G=m^3/kgs^2[/tex]

Hence, the correct option is (c) m³/kg s².

Answer:

v = 18.5 m /s

Explanation:

The velocity of the jumper will go on increasing until his weight is more than the restoring force created in the bungle.

mg = kx

50 x 9.8 = 100 X

X = 4.9 m

Total fall = 15 + 4.9 = 19.9 m

kinetic energy gained due to fall by 19.9 m

= mgh = 50 x 9.8 x 19.9 = 9751 J

energy lost due to stored elastic energy in bungie

= 1/2 k x²

= .5 x 100 x 4.9²

= 1200.5 J

Remaining kinetic energy = 9751 - 1200.5 = 8550.5 J

1/2 m v² = 8550.5

.5 x 50 x v² = 8550.5

v² = 342

v = 18.5 m /s

Answer:

the amplitude of the oscillation is 8 cm

Explanation:

The computation of the amplitude of the oscillation is shown below:

= Length of the spring - length of the equilibrium

= 32 cm - 24 cm

= 8 cm

By deducting the  length of the equilibrium from the length of the spring we can get the amplitude of the oscillation and the same is to be considered

hence, the amplitude of the oscillation is 8 cm

Given :

A SONAR used in a ship sends ultrasound waves and receives the echo after 2.0 s.

To Find :

The depth of the shoal of fish if the speed of sound in water is 1250 m/s.

Solution :

Let, the depth of the shoal fish is d.

Now, it is given that it takes 2.0 s to receive the echo.

Also, distance covered by echo is 2d.

Now, 2d = s × t

2d =  1250 m/s × 2 s

d = 1250 m

Therefore, the depth of the shoal of fish is 1250 m.

Answer:

the answer is c

Explanation:

Answer:

The power transmitted to the pulley is 0.0455 hp.

Explanation:

Given;

mass attached to the rope, m = 5 lb

radius of the pulley, r = 3 in

constant rate of fall of the mass, v = 5 ft/s

acceleration due to gravity, g = 32.2 ft/s²

1 lbf = 32.2 lb.ft/s²

The power transmitted to the pulley is calculated as;

P = Fv

P = (mg)v

[tex]P = 5 \ lb \ \times \ 32.2 \ \frac{ft}{s^2} \ \times \ 5 \ \frac{ft}{s} \ \times \ \frac{1 \ lbf}{32.2 \ lb.ft/s^2} \ \ = 25 \ \frac{ft.lbf}{s} \\\\[/tex]

in horse power, the power transmitted is calculated as;

[tex]P = \frac{25 \ ft.lbf}{s} \ \times \ \frac{1 \ hp}{550 \ ft.lbf/s} \ \ = 0.0455 \ hp[/tex]

Therefore, the power transmitted to the pulley is 0.0455 hp.

Answer:

Sedentary lifestyle is the lifestyle by which most physical activity is abandoned, performing activities that do not require energy consumption or large muscle movements on a large scale, such as using a computer, driving a car or playing video games.

Today, most young people have gradually turned towards sedentary lifestyles, mainly motivated by the increase in technological availability, and the extensive dependence generated on technology both to communicate with their peers (cell phones, social networks, etc. .) and for leisure time (video games, etc.).

Some ways to promote physical activity in young people and prevent sedentary lifestyle can be to create sports groups, where young people can establish social relationships without depending on networks or technological devices, or establish tasks of physical activity during study or work hours.

The peripheral nervous system transfers information from the sensory neurons to the rest of the body.

The peripheral nervous system transfers information from the sensory organs organs and muscles. The axons of these nerve cells can be found throughout the body. Information is received by the dendrites of nerve cells and the information moves down the axon to the cell body.

So we can conclude that the peripheral nervous system transfers information from the sensory neurons to the rest of the body.

Lear more about nervous here: https://brainly.com/question/2114466

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Answer:

[tex]W_b \approx 16336J[/tex]

Explanation:

From the question we are told that

Force of pull [tex]F= 92.5[/tex]

Weight of handle [tex]W_h=27.5 kg[/tex]

Angle of handle [tex]\angle =35.0[/tex]

Distance [tex]d=215.6 m[/tex]

Generally the work done by the boy can mathematically be represented as

[tex]W_b=F*dcos \theta[/tex]

[tex]W_b=92.5*27.5 *cos(35)[/tex]

Therefore

[tex]W_b=16336.34922J[/tex]

[tex]W_b \approx 16336J[/tex]