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2 years ago

Find the mass of an object that has a weight of 910kg

Mathematics

2 answers:

Sonja [21]2 years ago

8 0

Answer:

91kg

Step-by-step explanation:

weight= mass × gravitational force

910kg = m× 10ms^-2

m= 910÷ 10

m= 91

777dan777 [17]2 years ago

4 0

Answer:

The correct answer is 20 kg.

Given, Weight (w) = 910 N , g = 10 ms-2

So, mass (m) = (w / g) = 91kg

Important Points

Mass is a measure of the amount of matter in an object.

Mass is always constant.Weight is the force of gravity on an object.

Weight depends on the gravitational force of attraction.

Weight (w) = Mass (m) * Gravitational acceleration (g).

The weight of a body is greater in the pole of the earth than in the equator, because of acceleration of gravity at the poles is 980.665 cm/sec2 while at the equator it is 3.39 cm/sec2 less due to the centrifugal force.

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It cost $75 to rent a limo, plus $20 per hr. Write an equation to represent the total cost,c, of renting the limo for T hours.

qwelly [4]

We must create the equation from the information. Well, we know that there is a 75 dollar fee right off the top, and there is the word "plus" in the information meaning there will be adding.

1. Add the given cost plus the addition sign.

75 + ___ = ?

Now, we must find out what fills in "__." It says that it costs $20 per hour to rent the limo. However, it doesnt tell you how many hours it is being rented for, however it does say that the amount of hours is represented by T. So, fill in that information.

2. Fill in the second number.

75 + 20T = ?

Since there isn't a number to finish the second number to the equation, we know that there isn't going to be a completed answer. So, fill in the final cost with "c" as explained in the equation.

3. Write the answer.

75 + 20T = c

So, the equation to this problem is:

75 + 20T = c

Which is how to find out how much the limo costs to rent it.

5 0

2 years ago

Please help me with this! show that {1,2} ⊆ {x|x^4 - x^3 - x^2 - 5x + 6 = 0}

Llana [10]

The set $\{x\mid x^4-x^3-x^2-6x+6=0\}$ is the set of all values of $x$ that are solutions to the given equation. So all you need to do is check whether $x=1$ and $x=2$ satisfy the equation.

$x=1\implies 1^4-1^3-1^2-5+6=0$

$x=2\implies2^4-2^3-2^2-10+6=0$

The equation holds, so both 1 and 2 are solutions, and hence $\{1,2\}$ is a subset of the solutions.

6 0

2 years ago

Cinco amigos van al cine. La entrada cuesta 4,50$ dos no tienen dinero y los otros tres deciden invitarles ¿Cuanto dinero tiene

Dmitry_Shevchenko [17]

Answer:

Costo unitario= $3

Step-by-step explanation:

Dada la siguiente información:

Entrada= $4.5

Cantidad de entradas de más= 2

Cantidad de amigos que pagan= 3

Primero debemos calcular el total a pagas de más:

Total a pagar de más= 2*4.5= $9

Ahora, cuánto debe pagar cada uno:

Costo unitario= costo total / cantidad de personas

Costo unitario= 9/3

Costo unitario= $3

6 0

2 years ago

210 is equal to the total of p and 111

Aleks [24]

Answer:

p + 111 = 210

p = 99

Step-by-step explanation:

Break the question down into parts.

Convert each part into algebraic form (numbers or symbols).

210 => 210

is equal to => =

the total of p and 111 => p + 111

Put the equation together:

210 = p + 111

Usually, the variable is on the left side:

p + 111 = 210

To solve the equation is to isolate "p". This means to keep "p" on the left, and move everything else to the right side. When moving something, do the reverse operation to both sides of the equation.

p + 111 = 210 "111" should be on the left. It's opposite is -111.

p + 111 - 111 = 210 - 111 Simplify. "111" cancels out on the left.

p = 99 Solved for "p"

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2 years ago

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Brilliant_brown [7]

Answer:

Step-by-step explanation:

7 0

2 years ago

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