Which two changes would decrease the gravitational force between two
objects?
A. Decrease the distance between the objects.
B. Increase the mass of one of the objects.
O c. Decrease the mass of one of the objects.
D. Increase the mass of both objects.
E. Increase the distance between the objects.

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:

38ml

Explanation:

Answer:

38 ML

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 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:

331.8 (Plato/Edmentum)

Explanation:

#1: 24.545 + 307.3

#2: 331.845

#3: 331.8

Answer:

Mass and acceleration

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.

A formula unit is the empirical formula for an ionic compound. It is the lowest possible ratio of the cations and anions of a given ionic compound.

Explanation:

Option A= magnitude

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:

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

Option A is correct answer

Answer:

A

Explanation:

D and C are both eliminated because it being shaped like a horseshoe has nothing yo do with it and c is wrong cause the core is really hot there for it can not be similar so A because it has north and south poles meaning its magnetic ability

Answer:

600 Coulomb

Explanation:

Electric Current refers to the charge passing through unit cross section of a wire per second.

Current ( C / sec) = 5A = 5C / sec

So, 5C charge passes through the wire in one second, then, amount of charge passing through a cross section of the wire in 120 seconds is :

5C * 120 = 600 Coulumb

Answer:

A net force greater than 0 is the answer

Explanation:

trust

Answer:

b c

Explanation:

Answer

yeard

Explanation:

cause it is

Answer:

The answer is true

Answer:

yes  it is write

Explanation:

Answer:

1. T₁ = 500 N

2. T₂ = 866 N

Explanation:

Please see attached photo for the diagram.

Thus, we can obtain obtained the value of T₁ and T₂ as follow:

1. Determination of T₁

Angle θ = 30

Hypothenus = 100 kg

Opposite = T₁ =?

Sine θ = Opposite /Hypothenus

Sine 30 = T₁ / 100

Cross multiply

T₁ = 100 × Sine 30

T₁ = 100 × 0.5

T₁ = 50 Kg

Multiply by 10 to express in Newton

T₁ = 50 × 10

T₁ = 500 N

2. Determination of T₂

Angle θ = 60

Hypothenus = 100 kg

Opposite = T₂ = ?

Sine θ = Opposite /Hypothenus

Sine 60 = T₂ / 100

Cross multiply

T₂ = 100 × Sine 60

T₂ = 100 × 0.8660

T₂ = 86.6 Kg

Multiply by 10 to express in Newton

T₂ = 86.6 × 10

T₂ = 866 N

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:

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:

somatosensory

Explanation:

The primary somatosensory cortex specializes in receiving signals from different parts of the body.

Answer: good question lol

Explanation:

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

Explanation:

DIFFRACTION

Answer: B 1.52 m/s hope this helps

Explanation: I just took the test

Answer:

F = 1500 [N]

Explanation:

To solve this problem we must use Newton's second law, which tells us that the sum of all forces must be equal to the product of mass by acceleration.

ΣF = m*a

F = 1000*1.5

F = 1500 [N]

Answer:

Explanation:

Answer:

The correct option is  D

Explanation:

Generally when there is an increase in temperature of water the solubility of oxygen decrease and this would in turn decrease the amount of fish in water due to the fact that fish require oxygen soluble oxygen to survive

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:

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.