A boat Is headed due north on a river that's flowing directly east. What is the general direction of travel for this boat with respect to the land?
A. southeast
B. northeast
C. northwest
D.
east

Answer:

4sec

Explanation:

Since we know the initial velocity=0, acceleration = -4; and the displacemnt =14, we use the equation d = vi • t + ½ • a • t2. So, just plug in the values and solve for t in this case it's 4 sec

A body is said to be in freefall when it moves solely under the influence of  gravity.

The time it took for the ball to crash at the surface = 3 sec.

acceleration of gravity on the moon is 4 m/s^2.

the height of 14 m.

The formula for free fall:

[tex]h= \frac{1}{2}gt^2[/tex]

t^2 = 2h /g = 2 x 14 /4 = 7

t = [tex]\sqrt{7} = 2.65[/tex] sec ≅ 3 sec.

The time it took for the ball to crash at the surface = 3 sec.

To learn more about :   freefall

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Answer:

1. Mass

2. Weight

Explanation:

1. All the physical quantities that exist in the universe that have mass, are measurable because they can be measured on instruments such as scales. For this example, the amount of food can be measured on a scale and its mass determined in grams or ounces.

2. When we talk about a mass of a body influenced by gravity we are talking about weight, weight is a force that points in the direction of Earth's gravitational acceleration. That is, weight depends on the gravitation that interacts with the body. For the example we have that the weight of the dog is equal to the product of the mass of the dog by the gravity of the Earth.

Answer:

True

The answer is true but there is a character limit

Explanation:

Formula for calculating the area of a  rectangle A = Length *width

For statement A;

Given area of a rectangle with measured length = 2.536 mm and width = 1.4 mm.

Area of the rectangle = 2.536mm * 1.4mm

Area of the rectangle = 3.5504mm²

The rule of significant figures states that we should always convert the answer to the least number of significant figure amount the given value in question. Since 1.4mm has 2 significant figure, hence we will convert our answer to 2 significant figure.

Area of the rectangle = 3.6mm² (to 2sf)

For statement B;

Given area of a rectangle with measured length = 2.536 mm and width = 1.41 mm.

Area of the rectangle = 2.536mm * 1.41mm

Area of the rectangle = 3.57576mm²

Similarly, Since 1.41mm has 3 significant figure compare to 2.536 that has 4sf, hence we will convert our answer to 3 significant figure.

Area of the rectangle = 3.58mm² (to 3sf)

Based on the conversion, it can be seen that 3.6mm²  is greater than 3.58mm², hence the area of rectangle in statement A is greater than the area of the rectangle in statement B.

Answer:

question  1: force

question 2: velocity or inertia

question 3: 0

Answer:

9.8 m/s²

Explanation:

Earths gravity acts upon objects with a steady force of  9.8 m/s². The force of gravity is attractive in nature. It acts between two objects. It always acts towards the ground. The force off gravity is given by :

F = W = mg

m is mass of the object and g is the acceleration due to gravity. The value of g is 9.8 m/s². Hence, Earth's gravity acts upon objects with a steady force of  9.8 m/s².

Answer:

the answer is actually D. 9.8 meters per second squared

Explanation:

I took the quiz.. please mark brainliest. Also hope you get it correct;)

Answer:

A) 3.062 m/s2

B) 2.6946 N

C)  

If ma is increased, acceleration will decrease if the applied force remains fixed

Explanation:

Ma =1.7 kg ( Block A )

Mb = 0.88 kg ( Block B )

Force applied = 7.9 N

a) Calculate the magnitude of acceleration of blocks

F = mass * acceleration

acceleration = Force / mass

mass = ( 1.7 + 0.88 ) = 2.58 kg

Force = 7.9 N

Therefore acceleration = 7.9 / 2.58 = 3.062 N/kg =  3.062 m/s2

B) Tension in the string

Tension in string can be calculated using the relationship below considering the first block

F - T = ma * A

A = 3.062 m/s2

ma = 1.7 kg

F = 7.9 N

Hence Tension (T) = F - ma * A

                               = 7.9 - ( 1.7 * 3.062)

                               = 7.9 - 5.2054 = 2.6946 N

C)  If mA is increased, acceleration will decrease if the applied force remains fixed

Answer:

We breath air for us to supply oxygens in terms of functioning the circulatory system because oxygen can be transported as blood. We breath air because it has many minerals in it.

Explanation:

Answer:

204.5 m

Explanation:

a = v \ t

t = v \ a

t = 31 \ 4.7 = 6.6s

v = d \ t

d = v * t

d = 31 * 6.6

d= 204.5 meters

Answer:

i believe its D because he is not sliding and he is applying force on the wall

Explanation:

hope this helps plz mark brainliest

Answer: 6 and 8 would be side lengths because if it has a scale factor of 2 then you multiply the ones on the chart.

Explanation:Go find one

Answer:

Balanced forces are responsible for unchanging motion. Balanced forces are forces where the effect of one force is cancelled out by another. A tug of war, where each team is pulling equally on the rope, is an example of balanced forces. The forces exerted on the rope are equal in size and opposite in direction.

Explanation:

Answer:

lemons, which have a pH of 2 choice a

Answer:

a = 0.0761 [m/s^2]

Explanation:

This problem can be solved using kinematics equations, and by means of the following equation:

[tex]x=x_{0} +v_{0}*t-(\frac{1}{2} ) *a*t^{2}[/tex]

where:

Xo = initial location = 0

x = final location = 255 [m]

Vo = initial velocity = 6.23 [m/s]

t = time = 82 [s]

a = aceleration [m/s^2]

Since the ship slows down to rest, the last expression of the equation will be taken with a negative sign

255 = 0 + (6.23*82) - (0.5*a*82^2)

255 - (6.23*82) = - 3362*a

a = 0.0761 [m/s^2]

Answer:

11 m/s

Explanation:

1 mile= 1609.3 m

Hence, 24.6 miles= 39589.8 metres

1 hour=3600 seconds

Hence, [tex]\frac{24.6 miles}{hour} \\=\frac{39589.5 metres}{3600 seconds} \\=10.99[approx. 11 m/s}[/tex]

We already know from Newton's First Law that an object's inertia prevents it from changing velocity unless it experiences a net force, so once the forces are balanced, the skydiver continues at a constant velocity until they open their parachute.

To learn more about : Newton's Law

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Answer:

I think the answer for this question is 291 K

Answer: The net force acting on an object is the sum of all the force acting on it, and the net force of an object is zero. I f the forces acting on it tend to cancel each other. For example you are sit in a chair, the earth's gravity is pulling you down, but the chair is pushing you up with an equal amount of force.

There is my answer from my notebook .I hope its good :)

Answer:

true

Explanation:

Answer:true

Explanation:

Answer:

i)  8.82 * 10^15 J

ii) 1.8 * 10^23 watts

iii) 1.102 * 10^9 number of cups

iv) 2.450 * 10^6  number of months

Explanation:

i)Total possible energy released

Mtotal = x + x

          = 2x * 10 ^-3 kg

when we apply the famous Einstein's formula for mass-energy equivalence

E = Mtotal * c^2

c = speed of light in free space = 3 * 10^8 m/s^-1

x = 49 g

therefore the Total energy released

E = ( 2 * 49 * 10^-3 ) * ( 3* 10^8 ) ^2  =  8.82 * 10^15 J

ii) power output

x in ns = 49 * 10^-9 s

therefore energy released per sec = Total energy released / 49 * 10^-9

= (8.82 * 10^15 ) / ( 49 * 10^-9 ) = 1.8 * 10^23 J

hence power output = 1.8 * 10^23 J  * s^-1  = 1.8 * 10^23 watts

iii) Calculate the number of cups

Total energy obtained in a cup  = 8 MJ = 8* 10^6 J

number of cups required to match of the Total energy released

n = Total energy released / energy obtained in a cup

  = ( 8.82 * 10^15 ) / ( 8 * 10^6 ) = 1.102 * 10^9 number of cups

iv) Calculate the number of months

n = Total energy released / energy obtained in a month

  = (8.82 * 10^15 ) / ( 3.6 * 10^9) = 2.450 * 10^6  number of months

Answer:

2 hours!!! 5 miles an hour so 10 miles every two hours.

Answer:

We are given that it takes 1/2 an hour for the trip. This is a time:

t = 1/2

We are given that he averages 34 miles per hour. This is a rate:

r = 34

We are asked how few he has traveled. This is a distance. We use the d=rt equation:

d = rt

= (34)(1/2)

= 17

Markus lives 17 miles from work.

Explanation:

hope this will help you

Answer:c

Explanation:

Answer:

11 electrons & 11 neutrons

Explanation:

Answer:

Honey how can i draw you cant draw here

Explanation:

I wish i can help you

Explanation:

The mass of an object is a measure of the object's inertial property, or the amount of matter it contains.

The weight of an object is a measure of the force exerted on the object by gravity, or the force needed to support it.

Answer:

3kg

Explanation:

3kg is the appropriate mass

Answer:

3kg

Explanation:

just took the test