Answer:
Galileo Galilei developed the first ever telescope
Kevin and Kisha are ice skating. Kisha has a mass of 60 kg, and Kevin has a mass of 45 kg. As they face each
other, Kevin pushes off Kisha with a force of 54 N. Assume the friction between the skaters and the ice is
negligible.
t
Determine the magnitude of Kevin's acceleration.
Write your answer to two significant figures.
m/s
m
If Kevin with mass 45kg pushes Kisha with a force of 54N, the magnitude of Kevin's acceleration is 1.2 m/s²
Kisha's mass = 60 kg
Kevin's mass = 45 kg
Kevin pushes off Kisha with a force of 54 N
Since it was Kevin that pushed Kisha, and the required force is 54N, we can look for Kevin's acceleration using the equation below
F = ma
The considered mass is Kevin's mass
54 = 45a
a = 54/45
a = 1.2 m/s²
The magnitude of Kevin's acceleration is 1.2 m/s²
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Forces come in pairs. What are these pairs called?
Answer: Action-Reaction force pairs
Explanation: please make me brainiest thanks
Answer:
"action-reaction force pairs"
Explanation:
...
If you apply a force of 10 N to a table and push it 5 m in 10 s, how much power did you deliver? Multiple choice question. A) 50 W B) 25 W C) 500 W D) 5 W
Answer:
D) 5 W
Explanation:
Force=10N
Distance =5m
Time=10s
Power =?
But Power= Work done/Time taken
P= W/s
W= Fxd=10x5=50
P=50/10
P=5W
a football quarterback throws a football. after it leaves his hand, what forces are acting on the football? choose all that apply.
golekeeper
Explanation:
because they use hand to save keeper
To make a solution for an experiment, Gunther needs to add 40 g of a solute to 100 g of water. When making the solution at room temperature, he could only add 34 grams before the solute settled out.
What could he do to dissolve the remaining 6 grams of the solute?
a) Put the solution in an ice bath, dissolve the solute, and let the solution return to room temperature.
b) Heat the solution, dissolve the solute, and let the solution cool verifying nothing settled out.
c) Add more water, boil the solution, and dissolve the solute until the some of the water evaporates.
d) Keep the solution at room temperature, add more water, and dissolve the excess solute.
Answer:
b.
Explanation:
b) Heat the solution, dissolve the solute, and let the solution cool verifying nothing settled out.
How quickly would the 50kg box accelerate if the person applied a 580N force?
Answer:
11.6 m/s²Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
[tex]a = \frac{f}{m} \\ [/tex]
f is the force
m is the mass
From the question we have
[tex]a = \frac{580}{50} = 11.6 \\ [/tex]
We have the final answer as
11.6 m/s²Hope this helps you
PLEASE HELP
If the change in energy of an object is 50J, the work done on the object is
Answer:
Explanation: Since work done is= to energy lost,the work done on this object will also be 50J...
Why are occupants of the international space station weightless?
A jogger runs 12.0 blocks due east then 5.0 blocks due south. Find the magnitude of the joggers net displacement ?
Answer: 13.0 blocks
Explanation:
When you're driving in a car and you speed
up, what are you doing?
Answer:
i belive i dont knownow
Explanation:
A cart of weight 20 N is accelerated across a level surface at 0.15 m/s?. What net force acts on
the wagon?
The net force that acts on the cart of wagon is calculated as 3N
HOW TO CALCULATE NET FORCE:
The net force of a body can be calculated by multiplying the mass of the body by its acceleration. That is;Force (N) = weight (N) × acceleration (m/s²)According to this question, a weight of 20N accelerated across a level surface at 0.15 m/s². The net force can be calculated as follows:F = 20 × 0.15
F = 3N
Therefore, the net force that acts on the cart of wagon is calculated as 3N.Learn more at: https://brainly.com/question/18109210?referrer=searchResults
A box is pushed by a force of 15 N and accelerates 2 m/s2. What is the mass of the box?
Answer:
7.5 kgExplanation:
The mass of the box can be found by using the formula
[tex]m = \frac{f}{a} \\ [/tex]
f is the force
a is the acceleration
From the question we have
[tex]m = \frac{15}{2} = 7.5 \\ [/tex]
We have the final answer as
7.5 kgHope this helps you
what is the main deterrant to switching to electrically powered cars?
Answer:
Availability of charging
Explanation:
Assuming the car is not a hybrid and your traveling a very long distance far from civilization, you wouldn't be able to charge the car if it runs out of power as no outlets would be around.
what are the intermolecular forces present in water?
123456789 cari aja sendiri
Answer:
The main intermolecular forces present in water is hydrogen bond.
It is followed by,
Dipole-dipole attractions
Dipole-induced dipole attractions
London dispersion forces
The hydrogen bonds are the strongest force, but the other types of intermolecular attraction are still present.
draw the well labelled diagram of thermo flask.
Answer:
Here the answer is attached
Explanation:
If the mass of an object is 100 and Net force is 400, what would be the Acceleration?
And explain.
Answer:
[tex]4m/s^{2}[/tex]
Explanation:
I'm assuming the units for force and mass are Newtons and kilograms, respectively.
Rearranging Newton's first law (F=m*a) to solve for acceleration:
F=m*a
[tex]a=\frac{F}{m}=\frac{400 N}{100 kg}=4m/s^{2}[/tex]
The acceleration is 4 meters per second squared and was found by rearranging Newton's first law in order to solve for acceleration.
If force is 150N and area 25cm squared what is the pressure
Explanation:
Force = 150N
Area = 25cm = 25/10000m²
Pressure = F/A = 150/(25/10000) = 1500000/25 = 60000Pa.
hope this helps you.
V1= 25 L
T1= 200 degrees Kelvin
V2= 30 L
T2= ? degrees Kelvin
640 nanometer setara dengan
Answer:
640 nanometer setara dengan 6.4e-7 meter
How much must an object weigh to be able to float in water?
1: more than the amount of water it displaces
2: less than the amount of water it displaces
3: more than a gram
4: less than a gram
Answer:
less than one gram
Explanation:
big brain
Answer:
less than a gram
Explanation:
because yes
SCIENCE quantity that are obtained or derived from basic quantity are called
Explanation:
they are called derived quantities. which includes:
pressure, stress, work, acceleration, velocity,density,force
if a person with the arm dimensions shown pushes down hard with a 90 n force, what force must the triceps muscle provide? ignore the mass of the arm and hand in your calculation.
Answer:
1125 N
Explanation:
.)
What would the TABLE pane corresponding to the 2D MAP shown below look like?
latitude
30.2°
30°N
29.8°N
29.6°N
longitude
90.40
90.2°
90°W
89.8°
longitude : 89.6 W
Answer:
the correct answer is A the first map
trust i got a 100
Explanation:
Answers are the following:-
1. 33°N latitude, 112°W longitude ⇒ Phoenix, Arizona
2. 35°N latitude, 78°W longitude ⇒Raleigh, North Carolina
3. 46°N latitude, 96°W longitude ⇒ Fargo, North Dakota
4. 45°N latitude, 122°W longitude ⇒Portland, Oregon
5. 29°N latitude, 95°W longitude ⇒Houston, Texas
6. 43°N latitude, 79°W longitude ⇒Niagara Falls, New York
7. 25°N latitude, 80°W longitude ⇒ Miami, Florida
What is a longitude?The term Longitude has been refered as the horizontal lines that are the measurement east or west of the prime meridian. Longitude are the imaginary lines that divide the Earth. Longitudes are also called the meridians, which run from north to south pole to pole but they measure the distance east or west.
The hypothesis that the species diversity is greater at lower latitudes than higher latitudes because low-latitude habitats are older would be supported if speciation rates were: the same at high and low latitudes.
Species diversity can be defined as the number of species, present in an area or the ecosystem. More are the number of species, more diverse is the area is. The richness and functionality of an ecosystem is estimated through its diversity.
Therefore,longitudes are the horizontal lines which divide the Earth.
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How much work does a 60 Watt motor perform in 5 minutes?
Answer:
18000J or 18kJ
Explanation:
Use the formula:
work done or energy = power × time
power = 60Wtime = 5 mins = 300s (5 × 60)Sub in the values:
work done or energy = 60 × 300 = 18000Answer = 18000J or 18kJHope this helps!
A vector starts at the point (0, 0) and ends at (3, 1). What is the magnitude and direction of the displacement?
Answer:
tbh vector does not have any direction at all the answer is 0
what is the force on a 976kg vehicle that accelerates at 2.5m/s
Answer:
2440 N
Explanation:
As,F=m*a.....
From the question we have
force = 976 × 2.5
We have the final answer as
2440 N
What is an inclined plane that is wrapped in spiral
Answer:
A screw
Explanation:
The threads of a screw act like an inclined plane to increase the distance over which you exert the input force.
An book fell from a shelf 1.5 meters from the ground. If it took the book 3 seconds to hit the ground, what was the velocity of the book?
The initial velocity of the book before its hits the ground is 14.2 m/s.
The given parameters;
height of the book above the ground, h = 1.5 mtime of motion of the book, t = 3 secondsThe initial velocity of the book is calculated as follows;
h = ut + ¹/₂gt²
where;
u is the velocity of the book1.5 = 3u + (0.5 x 9.8 x 3²)
1.5 = 3u + 44.1
3u = 1.5 - 44.1
3u = -42.6
[tex]u = \frac{-42.6}{3} \\\\u = -14.2 \ m/s\\\\u = 14.2 \ m/s \ downwards[/tex]
Thus, the initial velocity of the book before its hits the ground is 14.2 m/s.
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If Runner A ran 1 mile in 7 minutes and Runner B ran 1 mile in 5 minutes, who ran at a faster speed.
Answer:
B
Explanation:
ran a mile 2 minutes faster
I NEED THIS ANSWERED ASAP NO LINKS !!!
I need a answer that is 100% ACCURATE
Answer:
it increasees
Explanation:
its 100% acurate dont worry