A 58.72 kg person holding a steel ball stands motionless on a frozen lake.
The person then throws the ball, which propels the person at 1.05 m/s to the
right and the ball 3.75 m/s to the left. If the initial momentum of the system is
zero, what is the mass of the steel ball?

Answers

Answer 1

Answer: 16.44 kg

Explanation:


Related Questions

Which describes the motion of the box based on the resulting free-body diagram?
1. It is moving up with a net force of 20 N.
2. It is moving to the right with a net force of 10 N.
3. It is in dynamic equilibrium with a net force of 0 N.
4. It is in static equilibrium with a net force of 0 N.

Answers

Answer:

D. (static equilibrium)

Explanation:

I just took the test and made a 100 with that answer.

Answer:

4. It is in static equilibrium with a net force of 0 N.

Explanation:

Just got it right :)

What is the main difference between the atoms in a solid versus atoms in a 1 point
liquid?

Answers

Answer:

Atoms in a solid are close and tightly packed.They vibrate about fixed positions .They are arranged in a regular LATTICE.They cannot be compressed nor can they change shape.They have strong forces of attraction between them so they cannot move in order to move they have to gain ENERGY. Whereas the atoms in a liquid are not that close compared to the ones in solid.They take the shape of the container but their volume remains fixed.They have weak forces of attraction between atoms and have more energy which enables them to move.

Explanation:

8. Using Newton's second law, solve the following problems using
GFFS.
a. A force of 35N is applied to a 25kg object, what is its
acceleration??
b. What force is required to accelerate a 14kg object at 4.5
m/s2?
c. Calculate the mass of an object that accelerated at a rate of
2.7 m/s2 by a force of 18N.

Answers

Answer:

a) 1.4 m/s2

b) 63N

c) 6.66kg

What is called mass per unit

volume of a substances? | ककसी पदाथष के

द्रव्यमान प्रतत इकाई आयतन को क्या कहते हैं?

A : Mass | द्रव्यमान

B : Weight | भार

C : Density | घनत्व

D : Volume | आयतन

Ans:
C : Density | घनत्व​

Answers

Answer:

Density

Explanation:

The definition of density of a substance is the quotient between its mass and its volume. Such results in the mass per unit of volume.

the state of matter that has low thermal expansion​

Answers

Answer:

Matter

Explanation:

Because it is solid

Answer:

Solid

Solid < Liquid < Gas

PLEASE PLEASE HELP PICTURE INCLUDED

Answers

Answer:

a is the answer

Explanation:

Which pair of factors affects the force of gravity between objects?

direction and distance

mass and distance

mass and shape

shape and time

Answers

Answer:

mass and distance

Explanation:

dont need to summary this

Answer:

B. mass and distance

Explanation:

If the maximum linear velocity her center of mass reaches is 2.3 m/s, what is her maximum angular velocity

Answers

Like linear velocity, angular velocity is the relationship between the variation of angular space at a given time.

It was agreed that the trajectory of the movement is clockwise. Thus, the movement that follows this orientation will be positive and the opposite, negative.

For the formula relating the linear velocity, it is necessary to take into consideration the following formula

[tex]v = \omega \times R[/tex]

For example, for a R = 0.738 m

[tex]2.3 m/s = \omega \times R \therefore\\ R = 0.738m \therefore\\\omega = 3.12 \frac{rad}{s}[/tex]

What is the final velocity of a running back that is moving with an initial velocity of 2 m/s and accelerates at a rate of 4 m/s$$ in 5 seconds as he moves toward the defensive line?

Answers

Answer:

Final velocity = 22

Explanation:

22-2/5= 4

20/5=4

so add to so it is not 18/5

Then you get your answer.

Answer:

4. A sound wave moves towards a building at 5 m/s for 22 seconds.

Explanation:

15)
The Celsius temperature equal to 86° Fahrenheit is:
T(F) = 9/5T(C) + 32
T(C) = 5/9 ( T(F) - 32)

A)
16°C
B)
30°C
C)
212°C
D)
190°C

Answers

Answer:

letter b

Explanation:

30 degrees Celsius equals 86 degrees Fahrenheit add me plesse mark brainiest

8. In explosives, potential energy is generally
stored in the form of
a thermal energy
b. electromagnetic energy
c. nuclear energy
d. chemical energy

Answers

Answer:

In explosives,potential energy is in the stored form of chemical energy.

the graph below represents the relationship between velocity and time for an object moving along a straight line.

What is the magnitude of the object's acceleration?

1. 5.0 m/s^2

2. 8.0 m/s^2

3. 10. m/s^2

4. 20. m/s^2​

Answers

Answer:

10. m/s^2

Explanation:

40-(-10)= 50

50/5 =10

This question can simply be answered by using the slope of the velocity-time graph.

The correct answer for the magnitude of the acceleration is "3. 10 m/s²".

Since the graph between the velocity and the time is in the form of a straight line. Hence, the acceleration can be calculated as the slope of this line. We will use the first and last point of the line to calculate the slope (acceleration):

[tex]Acceleration = Slope = \frac{v_2 - v_1}{t_2-t_1}[/tex]

where,

v₁ = initial velocity from the graph = - 10 m/s

v₂ = final velocity from the graph = 40 m/s

t₁ = initial time from the graph = 0 s

t₂ = final time from the graph = 5 s

Therefore,

[tex]Acceleration = \frac{40\ m/s\ -\ (-\ 10\ m/s)}{5\ s\ -\ 0\ s}[/tex]

Acceleration = 10 m/s²

The attached picture shows the types of a velocity-time graph.

Learn more about the velocity-time graph here:

https://brainly.com/question/11290682?referrer=searchResults

According to the kinetic theory, what happens when the temperature of water
increases?
The water molecules increase their speed.
The water molecules do not change speed.
The water molecules decrease their speed.

Answers

the molecules will increase their speed
The water molecules increase their speed. Think about a pot of boiling water as it gets hotter the molecules bounce off of each other more rapidly.

A body is pulling a load of 50N with a string inclined at an angle of 30 degrees to the horizontal.
If the tension is 108N, calculate the force tending to lift the load off the ground.

Answers

Answer:

answer: 105 sin 30 = 52.5

A force of 1000N is applied to push
a mass of 500kg. How quickly does
it accelerate?

Answers

Answer:

Explanation: use f= ma

we get 1000 ÷ 500 = a

∴ a = 2 m/s²

When a mass of 500 Kg with the force 1000N, the acceleration produced is equal to 2m/s².

What is Newton's second law of motion?

According to Newton’s second law of motion, the force equals the mass of the object times acceleration when the object has constant mass.

This law states that acceleration depends on two variables. The first variable is the mass and the net force acting on the body. The acceleration is directly proportional to the net force acting and inversely proportional to the mass.

Newton’s second law can be represented in the equation as follows:

[tex]F= ma[/tex]

or, [tex]a =\frac{F}{m}[/tex]

Acceleration or gaining speed happens when a force acts on an object.

Given the mass of the object, m= 500 Kg

The force applied on the object, F = 1000N

The acceleration produced in the mass, a = F/m = 1000/500 = 2m/s².

Therefore, the mass accelerates at a rate of 2m/s².

Learn more about Newton's second law of motion, here:

brainly.com/question/13447525

#SPJ2

A large mining dump truck has a mass of 40,000 kg. If its engine produces
20,000N of force, how fast will the truck accelerate?

Answers

Answer:

0.5 m/s²

Explanation:

Net force = mass × acceleration

∑F = ma

20,000 N = (40,000 kg) a

a = 0.5 m/s²

Answer:

which one will not start moving faster

Explanation:

Mass is also described by physics. If you apply the same amount of force to a small sports car and to a big garbage truck.

A series RLC circuit contains a 1,000 resistor, a 240 mH inductor, and a 0.04 uF capacitor. What is the circuit's resonant frequency?
A. 12,684 Hz
B. 48,194 Hz
C.51,393 Hz
D. 16.244 Hz

Answers

Husband is a little too bad

when electric and _______ fields both exist, it is called an electromagentic

Answers

Answer:

the answer is magnetic

A trebuchet launches a pumpkin at an angle of 27 degrees at an initial velocity of 32 m/ s from the ground. What is the apogee of the pumpkin?​

Answers

Answer:

10.77 m

Explanation:

From the question given above, the following data were obtained:

Initial velocity (u) = 32 m/s

Angle of projection (θ) = 27°

Acceleration due to gravity (g) = 9.8 m/s²

Apogee i.e maximum height (H) =?

Thus, the apogee i.e the maximum height of the pumpkin can be obtained as follow:

H = u² Sine² θ /2g

H = 32² × (Sine 27)² / 2 × 9.8

H = 1024 × (0.454)² / 19.6

H = (1024 × 0.206116) / 19.6

H = 10.77 m

Thus, the apogee i.e the maximum height of the pumpkin is 10.77 m.

Jack is buying a subscription to a magazine club. The function c=45+3.75m
c
=
45
+
3
.
75
m
describes the cost of the yearly subscription, c
c
, in terms of the number of magazines, m
m
, he orders.

What is the appropriate domain for the function?


the set of integers

the set of whole numbers

the set of all real numbers

the set of rational numbers

Answers

Answer:

the set of all real numbers

Explanation:

Given the cost of the magazine expressed as:

c=45+3.75m where:

c describes the cost of the yearly subscription.

m is the amount of order.

You must understand that domain are the values of the input variable m that will make the function exist.

The value of m that will produce a positive output since we can only have a positive value of the cost. According to the option, we can say that the domain is on the set of all real numbers (some are negative but all positive real numbers)

The student toses a ball into the air and then watches the ball fall back down to earth. When does the ball have the most potential energy

Answers

Answer:

when the ball is at its highest in the air.

Explanation:

I don't know for sure, but when the ball is in the air it has potential energy to fall(or something like that).

i know this is a lot to do but i will give you the highest amount of points (100, but you get 50 from it.) and i will cash app you $20 just tell me your cash app in the comments. please don't post troll answers. please be legit! this is due at 11:59 today, so in about 5 hours. the questions are in the images below. thank you so much!

Answers

Answer:

mel mel 4 ever

Explanation:

a horse was at rest.what was the final velocity of the horse if it covered 200 meters in 16 seconds?

Answers

Answer:

12.5m/s

Explanation:

Simplify the proportion.

200/16 = 100/8 = 50/4 = 25/2 = 12.5

What is the acceleration along the ground of a 18 kg wagon when it is pulled with a force of 91 N at an angle of 35° Above the horizontal?

Answers

Answer:

4.1 m/s²

Explanation:

Net force in the x direction equals the mass times the acceleration.

∑F = ma

91 cos 35° = (18 kg) a

a = 4.1 m/s²

Answer:

Explanation:

bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb

Question 4 of 10
A 6.2 kg bowling ball that weighs 60.76 N is accelerating at 1.8 m/s2. After 2
seconds, it reaches a speed of 3.6 m/s. What is its momentum at this point?
A. 11.2 kg-m/s
B. 1.7 kg.m/s
C. 22.3 kg-m/s
D. 16.9 kg.m/s

Answers

Answer:

22.3 kg•m/s

Explanation:

Apex;)

what is it called when I sound waves slowed buy a new medium
1.echo
2.transmission
3.absorption
4.reflection

Answers

Answer:

3

Explanation:

Question 7
(01.01 MC)
What is the difference between a hypothesis and a theory?

Answers

A hypothermia is like an idea and a theory is something you think

Which function has a graph that intersects the y-axis at the point (0-4)?
Plz help por favor

Answers

Answer:

I believe B. The picture is not completely clear

Explanation:

What is the final velocity if you have an initial velocity of 4 m/s with an acceleration of 2 m/s2 over 5 second interval interval

Answers

Answer:

14m/s

Explanation:


A baseball's resultant velocity is 25.79 m/s, at 68.64° from the level ground.
Determine the vertical component of the baseball's velocity.

Answers

Answer:

Vy = 24.01 [m/s]

Explanation:

To solve this problem we must understand that velocity is a vector and therefore has magnitude and direction, in this way we can decompose the velocity in the components x & y, by means of the trigonometric functions of the sine and cosine of the angle.

For the vertical component, the sine of the angle is used.

Vy = 25.79*sin(68.64)

Vy = 24.01 [m/s]

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we loved the 4th of July because it meant spending time with Dad and lighting fireworks. This year would be no different, except we were old enough to light the sparklers ourselves! Mom could not even watch fireworks because they scared her so much. She made Dad promise to be careful. So when he came home with a bag full of fireworks we listened to the same thing we had heard since we were five years old.Brandon is writing a story about a fun family memory. Which sentence is MOST LIKELY the next one he adds to this section?A) Dad began his list of rules about keeping our room clean if we want to buy our own sparklers. B) My brother Deon took our dog, Sassy for a long walk so she would be tired and sleep through the noise of the fireworks. C) Dad said, "Boys, get the bucket and fill it with water, then come help me set up our fireworks display." D) Dad said, " Boys, wait inside with your mother and Sassy. You should be able to see the fireworks from the window." A customer told the restaurant manager that the salad tastes too sour, so he asked the chef to examine the recipe. The quantities of whichIngredient should the chef adjust?The label of the dressing reads "Chef's Special Salad DressingIngredients:Olive oilMinced garlicSalt & pepperCider vinegarFinely chopped onion Jenny has 3 guitars. Steve has 4 guitars. If theratio of guitars is 4:3, who is first in the ratio? Identify the set of numbers that best describes the situation. Explain your choice. The weight of a person in pounds. Question 6 of 16Unlike the Middle colonies, the Southern colonies:A. gave settlers freedom of religion.B. were first founded by the Dutch.C. had large slave populations.D. could not farm because of poor soil.SUBMIT . WILL GIIVE 100 POINTS AFTER YOU ANSWER How was Islamic education during the Middle Ages different from a Christian education at that time?1.Christian education was used to only education future political and religious leaders; 2.Islamic education was offered to people of all classes and occupations3.Islamic education was only for males while Christian education was open the men and women4.Islamic education integrated the study of science with the study of religion; Christian education did notChristian education encouraged students to learn about all religions; Islamic education taught only Islam Which of the following is the best example of a system of equations that should be solved by the elimination method? Question 2 options:8x + 3y = 25x + 8y = -112x - 4y = -16y = 5x + 13-8x - 9y = -1716x - 4y = 1212x + 7y = -179x + 11y = -7 2x+ 8y = -33x+ 6y = -4Choose all answers that apply please help me with these A cylinder has a height of 5.3cm and a diameter of 3.0cm. What is its volume HELP ASAP!!! Taking a world cultures unit test 2 test does anyone know the answers im from campbell middle school btw (6 grade) What is Litmus Paper? find the value of x so that f(x)=7. Tuesday siesta think question 3 Maggie bought a pound of bananas and 4 boxes of cereal for $10.11. If each box of cereal cost $2.40, what was the price of a pound of bananas?$0.51$0.61$1.51$2.91 What is an equation in point slope form of the line that passes through (7, 1) and (-3,9) What is the name of the small lake of fluid that keeps osteocytes and chondrocytes from drying out? Refer to the Newsela article "Climate Change in Hawaii and U.S. Tropical Islands."How does the word stressed affect the meaning in this sentence?Reef ecosystems on many islands are already stressed by coastal development and pollution.It implies that there is too much construction along coastlines.O It implies that laws regulating pollution on waterways needs to be improved.O It suggests that animals on reefs are in danger from human interference.O It suggests that there are other factors affecting reefs. When Tran finished the next level of her video games, she gained 40 points for each of the two targets she hit and lost 125 points for taking too long. Write the total change to her score as an integer. Which statement best describes what Kendall can do?