just wanna make sure im right

Answer:

The height is 1.20 m above the window.

Explanation:

Given that,

Height of window = 1.10 m

Time = 0.190 sec

We need to calculate the velocity

Using equation of motion

[tex]s=ut+\dfrac{1}{2}gt^2[/tex]

Put the value into the formula

[tex]1.10=u\times0.190+\dfrac{1}{2}\times9.8\times(0.190)^2[/tex]

[tex]1.10=u\times0.190+0.17689[/tex]

[tex]u=\dfrac{1.10-0.17689}{0.190}[/tex]

[tex]u=4.85\ m/s[/tex]

We need to calculate the height

Using equation of motion

[tex]v^2=u^2+2gh[/tex]

Put the value into the formula

[tex](4.85)^2=0+2\times9.8\times h[/tex]

[tex]h=\dfrac{(4.85)^2}{2\times9.8}[/tex]

[tex]h=1.20\ m[/tex]

Hence, The height is 1.20 m above the window.

Answer:

A net force greater than 0 is the answer

Explanation:

trust

Answer:

b c

Explanation:

Hi!

givens: initial velocity = 0 m/s

time = 8.5 s

acceleration = 10 m/s^2

Unknown: displacement, velocity final

Equation:

Displacement = 1/2 (at^2) + viT

SS:

Displacement = 1/2 (10 * 8.5^2) + 0

Displacement = 361.25 m in a positive direction.

My math might be a little off, but I'm not sure...

But yeah! Hope this helped :)

Answer:

it took 70.6 meters for the ball to fall

Answer:

Explanation:

Explanation:

Option A= magnitude

Answer:

the slop is y x ray down

Explanation:

Answer:

The acceleration of the car is 0.244 m/s²

Explanation:

Given;

mass of the car, m = 2,000 kg

applied parallel force on the car, F = 560 N

mass of the two passengers, m = 2 x 55 kg = 110 kg

frictional force on the car (reducing horizontal motion), Fk = 45 N

Weight of the car acting downward, W = 2,000 x 9.8 = 19,600 N

weight of the two passengers acting downward, w = 110 x 9.8 = 1078 N

The net horizontal force on the car is given by;

∑Fx = F - Fk

∑Fx = 560 - 45

∑Fx = 515 N

Apply Newton's second law of motion;

F = ma

where;

m is the total mass of the system = mass of car + mass of passengers

m = 2000 + 110 = 2,110 kg

a = ∑Fx / m

a = 515 / 2110

a = 0.244 m/s²

Therefore, the acceleration of the car is 0.244 m/s²

Answer:

The length is d = 5

Explanation:

We must identify the respective coordinates of both points.

(x1,y1) = (2,3)

(x2,y2) = (5,7)

Now we know the distance equation of a straight line:

[tex]d=\sqrt{(x_{2} -x_{1} )^{2} +(y_{2} -y_{1} )^{2} } \\d=\sqrt{(5-2)^{2} +(7-3)^{2} }\\ d=\sqrt{9+16} \\d=5[/tex]

Answer:

For example, when you jump, your legs apply a force to the ground, and the ground applies and equal and opposite reaction force that propels you into the air. Engineers apply Newton's third law when designing rockets and other projectile devices.

Explanation:

Answer:

C. Decrease the mass of one of the objects.

E. Increase the distance between the objects.

Explanation:

The gravitational force will decrease when we increase the distance between the objects and decrease the mass of both objects.

Learn more about gravitational force,

brainly.com/question/11359658

#SPJ5

Answer:

Energy stored in an object due to its position is Potential Energy. · Energy that a moving object has due to its motion is Kinetic Energy.

Explanation:

Answer:

To summarize, potential energy is the energy that is stored in an object due to its position relative to some zero position.

Holding a bow and arrow before shooting, The amount of energy stored before you race on track, And a roller coaster going to it's highest point staying there waiting to come down.

Answer:

The slope of position-time graph is the velocity of the object understudy

Answer:

The motion in which all particles of a body move through the same distance in the same time.

Examples: A car moving along the road

A ball rolling on the ground

Answer:

D

Explanation:

Answer:

its d inches

Explanation:

Answer:

0.004

Explanation:

1 micrometer= .001 milimeter

so 4 Micrometers= .004 milimeters

Answer:

Mass and acceleration

Answer:

600 and 1500 [ohm

Explanation:

To solve this problem we must use ohm's law, which tells us that the voltage is the product of the current by the resistance, so we have:

V = I*R

where:

V = voltage [V]

I = current [amp]

R = resistance [ohm]

Therefore:

R = V/I

R1 = 60/(40*10^-3) = 1500 [ohm]

R2 = 60/(100*10^-3) = 600 [ohm]

So the resistance should be among 600 and 1500 [ohm]

Answer:

735 N

Explanation:

Mass * gravity    75KG * 9.8 m/s^2 = 735 Newtons

On earth, the weight of a large screen TV with a mass of 75 kg would be 735 Newtons.

Weight is a kind of force.

Recall Newton's law of motion that says: F = ma, where F = force, m = mass, and a = acceleration due to gravity

In this case, m = 75 kg and a = 9.8 m/s2

Therefore,

       f = 75 x 9.8

                   = 735 Newtons

More on calculating weight can be found here: https://brainly.com/question/23245710

Answer: B 1.52 m/s hope this helps

Explanation: I just took the test

Answer:

F = (500 ± 4) 10² lb

Explanation:

This is an exercise in the uncertainty or error of a measurement.

If a single measurement is made, the way to give the result is the measurement value plus the appreciation of the instrument that corresponds to the absolute error, in the form

           F = x ± Δx

For this, a suitable uniform is the use of scientific notation, where each magnitude is written with an integer and some decimals multiplied by an exponential.

           X = 50067 lb = 5.0067 10⁴ lb

the uncertainty is

           Δx = 400 lb = 4.00 10² lb

so the result for the report must be written

          F = (500 ± 4) 10² lb

where the significant figures are adjusted to the measurement error.

In the case of making a series of measurements, the value obtained is the average of the measurements and the error must be given by the standard deviation

Answer:

Induced magnetism

Explanation:

Answer:

induced magnetism

Explanation:

Placing a piece of metal such as an iron bar into a magnetic field, thereby causing the bar to become magnetized, is known as induced magnetism. Typically, an object that has been magnetized in this manner will lose its magnetic properties quickly when removed from the magnetic field.

Answer:

324 in ===

Explanation:

Answer:

36 kg

Explanation:

m= ?

KE= 324 J

v= 9 m/s

m= 324 / 9

m= 36 kg

Answer:

The cumulative distance that the bird travel is 13.33 Km

Explanation:

Given that,

Velocity of runner = 3.4 km/hr

Distance = 8 km

Velocity of bird = 17 km/hr

Let x is the distance from the origin where the runner run into the bird

We need to calculate the value of x

Using time of runner and bird

[tex]t_{r}=t_{b}[/tex]

[tex]\dfrac{d_{r}}{v_{r}}=\dfrac{d_{b}}{v_{b}}[/tex]

Put the value into the formula

[tex]\dfrac{x}{3.4}=\dfrac{8+(8-x)}{17}[/tex]

[tex]17x=3.4\times8+3.4(8-x)[/tex]

[tex]17x=27.2+27.2-3.4x[/tex]

[tex]17x+3.4x=54.4[/tex]

[tex]x=\dfrac{54.4}{20.4}[/tex]

[tex]x=2.67[/tex]

We need to calculate the cumulative distance that the bird travel

Using distance of bird

[tex]d_{b}=16-x[/tex]

Put the value into the formula

[tex]d_{b}=16-2.67[/tex]

[tex]d_{b}=13.33\ km[/tex]

Hence, The cumulative distance that the bird travel is 13.33 Km

Explanation:

DIFFRACTION

Answer:

Blue Lighting

Explanation:

In order to make red look black, you must use blue light. The blue would be absorbed and there would be no red light to reflect.

Answer:

You would have to shine green Light on the actress to make the dress appear to be red.

Explanation:

The reason it  would appear to be red is because green reflects the red colour and absorbs the rest. So, when green light is shone on the dress, it absorbs all of the green light and not reflecting anything.The dress then appears to beblack.

Answer:

d = 68.18 m

Explanation:

Given that,

Initial velocity, u = 15 m/s

Finally it comes to stop, v = 0

Acceleration, a = -1.65 m/s²

Time, t = 2.5 s

We need to find the distance covered by the hayride before coming to a stop. Let d is the distance covered. Using third equation of motion to find it :

[tex]v^2-u^2=2ad\\\\d=\dfrac{v^2-u^2}{2a}\\\\d=\dfrac{-(15)^2}{2\times -1.65}\\\\d=68.18\ m[/tex]

So, the hayride will cover a distance of 68.18 m.

Answer:

TIME he applied the fertilizer to each plant

Explanation:

Independent variable in an experiment is the variable that is subject to change or manipulation by the experimenter. In this experiment, Bob wanted to investigate the effects of plant fertilizer. Bob sets up the experiment by applying the fertilizer to each plant at DIFFERENT TIMES i.e. plant 1-every morning, plant 2-once a week, plant 3-never.

Based on this, it is obvious that the independent or manipulated variable is the TIME at which he applied the fertilizer. On the other hand, the dependent or measured variable is the height of the plants.

Answer:

a) t=3.6 sec

b) [tex]\mid v \mid =38\ m/s[/tex]

Explanation:

Horizontal Motion

When an object is thrown horizontally with a speed v from a height h, it describes a curved trajectory ruled by a constant speed in the horizontal direction and a variable speed in the vertical direction, where the acceleration of gravity makes the object fall to the ground.

If we know the height h from which the object was launched, the time it takes to hit the ground is:

[tex]\displaystyle t=\sqrt{\frac {2h}{g}}[/tex]

The horizontal speed is always constant:

vx=vo

But the vertical speed depends on the time and acceleration of gravity:

[tex]vy=g\cdot t[/tex]

The magnitude of the velocity or final speed of the object is given by:

[tex]\mid v \mid =\sqrt{vx^2+vy^2}[/tex]

a.

The stone was kicked over the cliff with a speed of v0=14 m/s, and the height it was thrown from is h=63.5 m, thus:

[tex]\displaystyle t=\sqrt{\frac {2\cdot 63.5}{9.8}}[/tex]

t=3.6 sec

b.

The vertical speed is:

[tex]vy=9.8\cdot 3.6[/tex]

vy=35.3 m/s

The final speed is calculated below:

[tex]\mid v \mid =\sqrt{14^2+35.3^2}[/tex]

[tex]\mid v \mid =\sqrt{1,442.09}[/tex]

[tex]\boxed{\mathbf{\mid v \mid =38\ m/s}}[/tex]