Answer:
I believe it would be 132
Explanation: when you take a your pulse times 6 because it breaks down to 6 per second and if in 10 seconds you have 22 beats 22x6 is 132.
6. Find the fundamental units involved in the following derived units.
(i) Newton(N)
(ii) Watt (W)
(iii) Joule (1)
(iv) Pascal (Pa)
(v) Cubic metre
Answer:
I. force
II. electricity.
III. energy.
iv. pressure.
v. volume.
Which of the following best represents stored potential energy?
Air leaking from a flat tire
Stress built up in a rock fault
Heat given off by a forest fire
Water flowing through a hose
Answer:
B
Explanation:
stress built up on a rock fault
2CH3OH + ?O2
2CO2 + 4H2O
9. How many molecules of O2 are needed to balance the chemical equation?
a. 1
b. 2
c. 3
d.4
Answer:
c.3
2CH3OH + 3O2====> 2CO2 + 4H2O
A system of particles is known to have a total kinetic energy of zero. What can you say about the total momentum of the system?
Answer:
The momentum of the system would be zero. A further explanation is described below.
Explanation:
The quantity of direction of travel which always takes place throughout something which moves or perhaps the start forcing that continues to moves something forward to maintain its movement, recognized as Momentum As momentum varies depending on velocity, these were quantified by something that also relies mostly on direction including its body's natural movement.Therefore the correct answer would be the one mentioned.
Answer:
The answer is "Momentum of the system is zero".
Explanation:
Kinetic total energy [tex]= \sum 0.5m_{i} v_{i^2}[/tex] Where I'm different particles. Every particle should be 0 velocities (As v is in the square) for total kinetic energy to be 0.
Total momentum [tex]= \sum 0.5m_{i} v_{i^2}[/tex] As all the particles have a speed of 0, as shown above, the momentum is 0. Thus, the total system momentum is 0.
It's value:
[tex]\to KE=0 -> V=0 -> p=0\\\\\to P=mv[/tex]
WHICH STATEMENT DESCRIBES HOW CHEMICAL FORMULAS , SUCH AS H2O REPERSENT COMPOUNDS
A motorcycle traveling at 25 m/s accelerates at a rate of 7.0 m/s2 for 6.0 seconds. What is the final speed (Vf) of the motorcycle?
Answer:
67 m/s
Explanation:
by 1st equation of motion:-
v= u+ at
= 25 + 7×6
= 25+ 42
= 67 m/s
Physical activity is the most important thing you can do to improve and maintain health-related physical fitness. Which list contains factors that contribute to physical fitness?
A.age, environment, heredity, motivation
B.age, environment, height, maturation
C.age, emotional state, heredity, motivation
D.age, environment, heredity, maturation
Answer:
I guess it's d because age environment heredity Nd maturation r more obvious factors if we compre with only physical fitness
The factors that contribute to physical fitness are age, environment, heredity and maturation. Hence, option (D) is correct.
The given problem is based on the factors affecting the physical fitness and physical activities. The physical activities are all those activities, wether of some sort of daily work or the sporting activities, that a individual perform to stay fit and healthy. The prime factors of physical fitness are as follows:
Age : The is obviously a specific age after which the fitness level goes down. For example: At younger age, an athlete can show dominance in its reflexes and at the age of early 50s, the fitness level goes down.Environment : Environment is another important aspect to remain fit, a positive environment helps a most of crowd to be happy.heredity : There is a balanced impact of heredity on the physical fitness, which means it is not necessary that the son of splinter will be as fast as his/her father. Maturation: It is an obvious factor, as maturity over taking dietary supplements, sleeping time, exercises, and many more are to be considered with complete maturity.Thus, we can conclude that the factors that contribute to physical fitness are age, environment, heredity, maturation. Hence, option (D) is correct.
Learn more about the physical fitness here:
https://brainly.com/question/14338730
If a racquet ball hits the wall with 20 N of force, how much force will it bounce back with?
Please help
Answer:
-20N
Explanation:
The racquet ball will bounce back with the same force.
This is in compliance with newton's third law of motion:
"action and reaction are equal but opposite"
If the ball hits the wall with an action force of 20N, the reaction force will be -20N.
The negative indicates an oppositely directed force.
2 easy science questions. please help. will drop brainliest
Answer:
4 b 5 c
Explanation:
SO! I'VE GOT A COUPLE QUESTIONS RELATING TO SCIENCE (WHERE ARE MY SCIENCE WHIZZES?) TRUST ME THERE WILL BE MORE
Answer:
nnnnnnnnnnnnnnnnnnnnnnnn
Explanation:
Answer:
maybe a
Explanation:
earth has gravity so it would pull to it so it would be a.
tldr;moon moving away earth gravity keeps it in.
PLEASE HELP IT'S DUE IN LIKE 2 MINUTES
Answer:
1kg
Explanation:
this box is the smallest and weighs the least. Hope this helps :]
if the velocity of a bicycle is 10m/s .how long will it take to cover a distance of 18km
Answer:
1800seconds
Explanation:
plz follow me say a thanks mark me branliest
What type of energy shows motion?
Answer:
kinetic energy
Explanation:
Answer:
Kinetic energy
Explanation:
A speeding bullet, a walking person, and electromagnetic radiation like light all have kinetic energy.
A 1.0-kg cue ball traveling at 15 m/s strikes a stationary billiard ball of mass 1.5 kg. After the collision, the cue ball remains at rest. With what velocity does the other ball travel?
Answer:
Other ball's velocity is 10 m/s
Explanation:
We can use conservation of momentum:
[tex]P_{1i} +P_{2i} =P_{1i} +P_{2i}\\1 * 15 + 1.5 * 0 = 1 * 0 + 1.5 * v\\15 = 1.5 * v\\v=\frac{15}{1.5} \,\frac{m}{s} \\v=10 \,\frac{m}{s}[/tex]
Calculate the east component of a resultant 32.5 m/s, 35.0° east of north.
Answer:
East component is: 18.64 m/s
Explanation:
If the resultant is 32.5 m/s directed 35 degrees east of north, then we use the sin(35) projection to find the east component of the velocity:
East component = 32.5 m/s * sin(35) = 18.64 m/s
1. Newton's third law states that any action will have a(n) and reaction O A. Equal and opposite O B. Greater and opposite C. Equal and similar D. Equal and different
Answer: Equal and Opposite
Explanation:
A car mass 600kg starts from rest moving uniform acceleration 0.2 m/s^2 after 60 seconds collides with stationary pick up van of mass 400kg gets locked with it and moves together with velocity 7.2 m/s
a) DOES THE PHENOMENON OF THE STEM SUPPORT THE PRINCIPLE OF CONSERVATION OF MOMENTUM? GIVE YOUR OPINION BY MATHEMATICAL ANALYSIS.
Answer:
The given phenomenon supports the Principle of Conservation of momentum.
Explanation:
law of conservation of momentum
Initial Momentum = Final Momentum
So, first we calculate initial momentum of the system:
Initial Momentum = m1*u1 + m2*u2
and we are given
m1 = mass of car = 600 kg
m2 = mass of van = 400 kg
u1 = Initial Speed of Car
to find the initial speed we use equation of motion
Vf = Vi + at
Vf = 0 m/s + (0.2 m/s²)(60 s)
Vf = u₁ = 12 m/s
u₂ = Initial Speed of Van = 0 m/s
Therefore,
Initial Momentum = (600 kg)(12 m/s) + (400 kg)(0 m/s)
Initial Momentum = 7200 Ns .........(1)
final momentum = m₁v₁ + m₂v₂
where,
v₁ = v₂ = final speed of car+van (both locked ) = 7.2 m/s
Therefore,
Final Momentum = (600 kg)(7.2 m/s) + (400 kg)(7.2 m/s)
Final Momentum = 7200 Ns -------- (2)
on comparing (1) and (2)
Initial momentum = Final Momentum
Hence, the phenomenon of the system supports the principle of conservation of momentum.
A delta connection has a voltage of 560 V connected to it. How much voltage is dropped across each phase
Answer:
E_Phase = 560V
Explanation:
The computation of the voltage i.e. dropped across each phase is shown below:
Given that
The delta connection line voltage is
E_line = 560 V
And, in the case of delta connection, the line voltage would be equivalent to the phase voltage
That means
E_Phase = E_Line
= 560 V
Hence, the voltage i.e. dropped across each phase is
E_Phase = 560V
This isn’t homework related but what methods do you guys recommend for shifting realities ? .I’ve tried the raven method for weeks but it doesn’t work I also tried the pillow method but it didn’t work either any tips or recommendations?
Answer:
subs
Explanation:
I've seen subliminals online that are supposed to help shifting. You could see for yourself if they work for you. You could probably also use the method where you act like you already have your desires and results. I have seen a lot of people act as if they have their desires and affirm it constantly. Ex: you want to lose weight, so you act as if you already are your desired weight and tell yourself that you are such and such weight, and don't contradict it by saying that you aren't. I hope that this helps.
When you push a box with 20N of force what force does the box apply back on you ?
When you push a box with 20 N of force. With a force of 20 N, the box applies back to you.
What is Newton's third law of motion?According to Newton's third law of motion, every action has an equal and opposite reaction. As well as the action and reaction are always acted in pairs.
When the student jumps off a sled toward the west after it stops at the bottom of an icy hill.
Based on the law of action-reaction, In the East direction will the sled move as the student jumps off.
Forces always act in pairs. When the person pushes a box with 20N of force. In that condition, the box will apply some reaction that is equal to 20 N.So that the static equilibrium must be balanced.
Hence with a force of 20N the box applies back to you
To learn more about Newton's third law of motion refer to the link;
https://brainly.com/question/974124
How can a element form a positive ion?
Answer/Explanation: When a metal loses electrons, and a nonmetal gains those electrons ions are formed.
Answer:
Any metal element can form a positive ion because they lose electrons to become stabilized.
Two protons are on either side of an electron as shown below:
Diagram
The electron is 30 µm away from the proton on its left and 10 µm away from the proton on its right. What is the magnitude and direction of the net electric force acting on the electron? Note that
P=1.6×10(-19) c=-e
Select one:
a. 2.0×10−18N to the right
b. 7.0×10−24N to the right
c. 2.0×10−18N to the left
d. −9.59×10−24N to the right
e. 7.0×10−24N to the
Answer:
Choice a. approximately [tex]2 \times 10^{-18}\; \rm N[/tex] to the right.
Explanation:
Look up the Coulomb constant, [tex]k[/tex]:
[tex]k \approx 8.987552 \times 10^{9}\; \rm N \cdot m^{2} \cdot C^{-2}[/tex].
Coulomb's Law may be used to find the magnitude of the electric force between the electron and each proton.
Let [tex]q_1[/tex] and [tex]q_2[/tex] denote the magnitude of electric charge on two point charges. Let [tex]r[/tex] denote the distance between these two charges.
By Coulomb's Law, the magnitude of the force between these two point charges would be:
[tex]\displaystyle F = \frac{k\, q_1\, q_2}{r^2}[/tex].
The unit of distance in the Coulomb's constant here[tex]k \approx 8.987552 \times 10^{9}\; \rm N \cdot m^{2} \cdot C^{-2}[/tex] is meters. However, the distance between the electron and each proton is given in micrometers, [tex]\rm \mu m[/tex]. Note that [tex]1\; \rm \mu m = 10^{-6}\; \rm m[/tex].
Convert these units to meters:
[tex]30 \; \rm \mu m = 30 \times 10^{-6}\; \rm m[/tex].
[tex]10 \; \rm \mu m = 10 \times 10^{-6}\; \rm m[/tex].
The question states that the magnitude of electric charge on each proton and each electron is [tex]1.6\times 10^{-19}\; \rm C[/tex].
Using these information, find the magnitude of the electric force between the electron and each proton:
Between the electron and the proton on the left-hand side of the electron: [tex]\begin{aligned}F &= \frac{k\, q_1\, q_2}{r^2}\\ &\approx \frac{\left(8.987552\times 10^{9}\; \rm N \cdot m^2\cdot C^{-2}\right) \times \left(1.6 \times 10^{-19}\; \rm C\right) \times \left(1.6 \times 10^{-19}\; \rm C\right)}{\left(30 \times 10^{-6}\; \rm m\right)} \\ &\approx 0.26 \times 10^{-18}\; \rm N\end{aligned}[/tex].Between the electron and the proton on the right-hand side of the electron:[tex]\begin{aligned}F &= \frac{k\, q_1\, q_2}{r^2}\\ &\approx \frac{\left(8.987552\times 10^{9}\; \rm N \cdot m^2\cdot C^{-2}\right) \times \left(1.6 \times 10^{-19}\; \rm C\right) \times \left(1.6 \times 10^{-19}\; \rm C\right)}{\left(10 \times 10^{-6}\; \rm m\right)} \\ &\approx 2.56 \times 10^{-18}\; \rm N\end{aligned}[/tex].The two protons in this question will both attract the electron. Therefore, the force between the electron and the proton on the left-hand side of the electron would point to the left. Similarly, the force between the electron the proton on the right-hand side of the electron would point to the right.
The magnitude of the net electric force on the electron would be:
[tex]2.56 \times 10^{-18}\; \rm N - 0.26\times 10^{-18}\;\rm N \approx 2\times 10^{-18}\; \rm N[/tex].
These two forces act along the same line in opposite direction. Therefore, the resultant force of these two force would be in the direction of the larger force of the two.
In this question, the electric force between the electron and the proton on the right-hand side of the electron is larger. Hence, the net electric force of the protons on the electron should point to the right (towards the proton that is closer to the electron.)
A girl swings a 0.250 kg rock attached to a taut string in a circle around her head. Her hand holds the end of the string above her head, and the string angles down slightly (11.9° below the horizontal.). The string is massless and 0.75m long.
A coordinate system lies with its origin a the location where the string comes out of the girl's hand. The positive z-axis points vertically. the projection onto the horizontal plane is such that the string makes an angle of 34.6° with the x-axis.
At a certain instant, the rock makes 2.50 revolutions per second (rev/s) in a counterclockwise direction as seen from above.
What is the tangential velocity vector at this instant?
Complete Question
The diagram of with this question is shown on the first uploaded image
Answer:
The value is [tex]v = -6.543 \^ i + 9.47 \^ j + 0 \^ k[/tex]
Explanation:
From the question we are told that
The mass of the rock is [tex]m = 0.250 \ kg[/tex]
The length of the string is [tex]L = 0.75 \ m[/tex]
The angle the string makes horizontal is [tex]\theta = 11.9^o[/tex]
The angle which the projection of the string onto the xy -plane makes with the positive x-axis is [tex]\phi = 34.6^o[/tex]
The angular velocity of the rock is [tex]w = 2.50 rev/s = 2.50 * 2\pi =15.7 \ rad/s[/tex]
Generally the radius of the circle made by the length of the string is mathematically represented as
[tex]r = L cos(\theta )[/tex]
=> [tex]r = 0.75 cos(11.9 )[/tex]
=> [tex]r = 0.734 \ m[/tex]
Generally the resultant tangential velocity is mathematically represented as
[tex]v__{R}} = w * r[/tex]
=> [tex]v__{R}} = 15.7 *0.734[/tex]
=> [tex]v__{R}} = 11.5 \ m/s[/tex]
Generally the tangential velocity along the x-axis is
[tex]v_x = -v__{R}} * sin(\phi)[/tex]
=> [tex]v_x =- 11.5 * sin(34.6)[/tex]
=> [tex]v_x = -6.543 \ m/s[/tex]
The negative sign show that the velocity is directed toward the negative x-axis
Generally the tangential velocity along the y-axis is
[tex]v_y = v__{R}} * cos(\phi)[/tex]
=> [tex]v_y = 11.5 * cos(34.6)[/tex]
=> [tex]v_y = 9.47 \ m/s[/tex]
Generally the tangential velocity along the y-axis is
[tex]v_z = v__{R}} * cos(90)[/tex]
=> [tex]v_z = 0 \ m/s[/tex]
Generally the tangential velocity at that instant is mathematically represented as
[tex]v = -6.543 \^ i + 9.47 \^ j + 0 \^ k[/tex]
Three people are in an elevator, The people have a total 185 kg. The elevator has a mass of 250 kg. When the evelavtor begins to move the elevator and the people accelerate upward with a acceleration of 1.50 m/s ^ 2 What the net force?
The net force will be equal to 4915.5 N when the elevator accelerates upward with an acceleration of 1.50 m/s².
What is tension?Tension can be described as a force along the length of a flexible medium such as a cable, rope, etc. Tension is a pulling force but it can not be a pushing force.
When the elevator moves upward with acceleration (a). The net force will be equal to:
Fₙ = mg + ma
Where m is the mass of the object and 'g' is the gravitational acceleration.
Given the total mass of three people = 185 Kg
The mass of the elevator = 250 Kg
Then the total mass, m = 185 + 250 = 435 Kg
The acceleration of the elevator, a = 1.50 m/s²
The net force of the elevator will be: F = 435 × 9.8 + 435 × 1.50
F = 4915.5 N
Learn more about tension, here:
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Pleaseee help as soon as possible!!
Mary Anne walks 1000 meters north to the store and walks back 900 meters south to her friends house. The friend’s house is 100 meters to the north of Mary Anne’s house. What was Mary Anne’s Travel Distance?
-2000 meters (I chose this and got it wrong)
-100 meters south
-1900 meters
-100 meters
Answer:
its right 2000 meters ask your teacher
Explanation:
This question is typical on some driver's li-
cense exams: A car moving at 49 km/h skids
17 m with locked brakes.
How far will the car skid with locked brakes
at 98 km/h? Assume that energy loss is due
only to sliding friction.
Answer in units of m.
Answer:
The car will skid 98 m
Explanation:
Friction Loss
If some object is traveling and the brakes are locked, then the friction force dissipates all the kinetic energy into heat.
The kinetic energy dissipated is equal to the job done by the friction force:
[tex]K = W_f\qquad\qquad[1][/tex]
The kinetic energy is calculated by:
[tex]\displaystyle K=\frac{1}{2}mv^2[/tex]
Where m is the object's mass and v is the speed.
The work done by the friction force is:
[tex]W=F_r.x[/tex]
Where Fr is the magnitude of the force and x is the distance the object is braking.
The friction force is calculated as
[tex]F_r=\mu .m.g[/tex]
Being [tex]\mu[/tex] the coefficient of friction and g the acceleration of gravity. Please note that the friction force remains constant for a given object and surface of contact.
Keeping all the above in mind, we use [1]
[tex]\displaystyle \frac{1}{2}mv^2=\mu .m.g.x[/tex]
Simplifying and solving for x:
[tex]\displaystyle x=\frac{v^2}{2\mu g}[/tex]
Which means the skidding distance is proportional to the square of the speed. Or, equivalently for x2 and x1 the distances for v1 and v2:
[tex]\displaystyle \frac{x_2}{x_1}=\left(\frac{v_2}{v_1}\right)^2[/tex]
If the car skids 17 m at 49 Km/h, then if it goes at 98 Km/h, it will skid:
[tex]\displaystyle x_2=17*\left(\frac{98}{49}\right)^2=68[/tex]
[tex]x_2=68~m[/tex]
The car will skid 98 m
Answer:
[tex]d=68m[/tex]
Explanation:
Initial | Final
[tex]v^{2} -v_{o} ^{2} =2ad[/tex] | [tex]v^{2} -v_{o} ^{2} =2ad[/tex][tex]0^{2} -49^2=2a(17)[/tex] | [tex]0^{2} -98^2=2ad[/tex][tex]\frac{49^2}{98^2} =\frac{17}{d}[/tex]
[tex]d=68m[/tex]
what is the Gravitational strength of the planet Eris
0.82 m/s²
How?Though its gravity is weak compared to earth, Eris has the strongest gravity out of all the dwarf planets: 0.82 m/s².
How Is Eris Important?
Eris is the largest dwarf planet in the Solar System, and the ninth largest body orbiting our Sun. The discovery of Eris was so important because it was a celestial body larger than Pluto, which forced astronomers to consider, for the first time in history, what the definition of a planet truly is!
Hope this helps you!! :D
How are molecule shapes determined by electrons
Answer:
Using the VSEPR theory, the electron bond pairs and lone pairs on the center atom will help us predict the shape of a molecule. The shape of a molecule is determined by the location of the nuclei and its electrons. The electrons and the nuclei settle into positions that minimize repulsion and maximize attraction.Explanation:
what happens to the strength of an electromagnet when the number of coils in the solenoid is decreased?
Answer: a . it decreases
Explanation:
Based on what you have read what will be another example of potential energy
A ball resting on the shelf
B hey Ball spinning on a finger
C A ball rolling on the ground
D A ball flying through the air
Answer:
A) A ball resting on a shelf.
Explanation:
because potential energy means the energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.