Answer:
v = 4 m/s
General Formulas and Concepts:
Momentum
Momentum Formula: p = mv
p is momentum (in kg · m/s)m is mass (in kg)v is velocity (in m/s)Explanation:
Step 1: Define
Identify variables
[Given] p = 600 kg · m/s
[Given] m = 150 kg
[Solve] v
Step 2: Solve for v
Substitute in variables [Momentum Formula]: 600 kg · m/s = (150 kg)vIsolate v [Cancel out units]: 4 m/s = vRewrite: v = 4 m/sState three differences between solid friction and viscosity
Please answer as if you're teaching someone who has no knowledge of the subject, thank you.
Answer:
(C) 700 N
Explanation:
The given parameters are;
The mass of the mountain climber, m = 100 kg
The angle formed by the rope with the horizontal, θ = 45°
The gravitational field strength, g = 10 N/kg
The weight of the man, W = m × g
∴ W = 100 kg × 10 N/kg = 1,000 N
At equilibrium, we have;
The downward force, the weight of the man, W = The upward force, the vertical component of the tension on the two halves of the rope
We have;
W = T × sin(θ) + T × sin(θ)
∴ 1,000 N = 2 × T × sin(45°)
Therefore, we have;
T = 1,000 N/(2 × sin(45°)) = 707.106781 Newtons
Therefore, the tension in the rope is closest to (approximately) 700 N.
athlete running on a circular track of radius 5 m completes one round in 12 s. what its average speed and average displacement?
Average speed = total distance/time
That's 2.62 m/s .
You don't want average displacement. You want average velocity.
That's (displacement)/(time).
That's zero, because displacement = 0.
The displacement ‘s' of a point moving in a straight line is given by: s = 6t^2 + 5t – 5, ‘s' being in cm and ‘t' in s. The initial velocity of the particle is:
Answer:
the initial velocity of the particle is 5 cm/s
Explanation:
Given initial displacement as, s = 6t² + 5t - 5
s is measured in "cm"
t is measured in "seconds"
Velocity is the rate of change of displacement with time. Expressed as follows;
[tex]v = \frac{ds}{dt} = 12t + 5[/tex]
for initial velocity, time (t) = 0
v = 12(0) + 5
v = 5 cm/s
Therefore, the initial velocity of the particle is 5 cm/s
What is the net force on the object represented by the FBD below?
Answer:
Explanation:
35 up 35 down cancel out.
25 forward minus 10 pulling back, so:
25-10
= 15N Right
I need helpppp please
Answer:
b
Explanation:
A human hair has a thickness of about 70 micrometers. How many meters is
this?
A. 70 x 10-2 m
B. 70 x 10-6 m
C. 70 x 10-3 m
D. 70 x 10-ºm
Answer:
the answer is B. 70 x 10-6 m
Explanation:
i'm doing the test rn
When converting from micrometers to meters, you have to divide the value by 1,000,000
= 70/1000000
= 7 ×10⁻⁵
Hence the thickness of the human hair is in meters is 7×10⁻⁵ m
Please see the link below for more information
https://brainly.com/question/8648951?referrer=searchResults
Which type of training will improve muscular strength?
A.lifting light weights many times
B.lifting heavy weights every day
C.lifting heavy weights with few repetitions
Answer:
C
Explanation:
Lifting heavy weights every day
A 150 g baseball is thrown with a speed of 20 m/s. After the ball hits the bat, the ball moves 40 m/s.
What is the momentum before it hits the bat?
What is the momentum after it hits the bat?
Answer:
3000 kg*m/s
6000 kg*m/s
Explanation:
p = m*v
p = 150kg*20m/s
p = 3000 kg*m/s
p = 150kg*40m/s
p = 6000 kg*m/s
Write your answers to these questions. • Does the cardboard fall off? • Does the water pour out? • Something is pushing against the cardboard to hold the water in. What do you think it is?
Answer:
Have you ever tried turning a glass of water upside down without spilling it? It seems impossible! Both kids and adults will be amazed by this experiment that appears to defy gravity.
With just a few simple household items, you can try this simple and fun science experiment where kids can get see the effects of air pressure in action. Printable instructions, a demonstration video, and an easy to understand explanation of how it works are included below.
Helpful Tip: Be sure to try this experiment over a sink or large container lest you accidentally make a BIG wet mess!
Which symbol represents a type of radiation that has the same mass as an
electron and a positive charge?
Answer:
the answer is D
as an electron is composed of positive charges
Answer:
D.+1°e symbol represents a type of radiation that has the same mass as an electron and a positive charge.
Explanation:
it is 100% correct!
given the balance chemical equation
Answer:
in probability theory, a balance equation is an equation that describes the probability flux associated with a Markov chain in and out of states or set of states.
Explanation:
If 175 kJ of heat caused a chunk of ice at 0°C to melt to liquid water at 0°C, how many moles were in the ice? How many grams of ice? (Note: molar mass of ice/water is 18.02 g/mol)
Answer is 29.1 mol or 525 g
Explanation:
55 points question
please put the answer in order by up to down
please help me
Answer:
animal and plant
Explanation:
1st is animal
mitochondria
cell membrane
nucleus
endoplasmic reticulum
golgi body
plant cell
cell wall
cell membrane
chloroplast
nucleus
vacuole
endoplasmic reticulum
mitochondria
golgi body
The angle at which the refracted light ray lies
along the boundary of the two mediums, this
is the definition of
Answer:
Critical angle
Explanation:
The angle of incidence when the refracted angle is 90°; we have the critical angle at this point. At this point, the refracted ray lies between the boundary between the two medium, this is the angle just before total internal reflection occurs, as the refracted angle exceeds 90°, all rays are reflected. Hence, we can conclude that it is the largest angle at which reflection can still occur.
If we keep on applying force on a material object, can it gain speed of light?
Answer:
As an object moves faster, its mass increases. ... Because masses approach infinity with increasing speed, it is impossible to accelerate a material object to (or past) the speed of light. To do so would require an infinite force.
entropy is the amount of heat a system releases. true or false?
Answer:
The answer to this is FALSE.
If the angle of a light ray in air is 25∘ and it enters a substance with a refracted angle of 13∘, what is the index of refraction of the substance?
A). 0.65
B). 0.53
C). 1.92
D). 1.88
Answer:
Explanation:
The formula for this is
[tex]n_1sin\theta_1=n_2sin\theta_2[/tex] where the index of refraction of air is 1.00. Filling in and solving for n2:
1.00sin(25) = n₂sin(13) and
1.00(.423) = n₂(.225) and
[tex]\frac{1.00(.423)}{.225}=n_2[/tex] so
[tex]n_2=1.88[/tex], choice D.
38. Joey set a school record for running the 200 m race. He completed the distance in
20.6s. What was his average speed?
Answer:
9.7 miles per second
Explanation:
divide 200 by 20.6
I need help QUICK!! 20 points
Which of the following is/are formed as gravity pulls increasing amounts of dust and debris in a nebula together?
a. the solar wind
b. meteors
c. planetesimals
d. meteorites
. What is the mass of an object if it is pulled by a 5 Newton force and it accelerates at a rate of 20 m/s/s?
Please help ASAP
F = ma
so, we can write it as;
= 5 = m × 20
= 5/20 = m
= 1/4 = m
= 0.25 kg = m
[tex]what \: is \: water \: cycle \: \: {?} [/tex]
Answer:
water cycle show the continuous movement of water with in the earth and atmosphere
Explanation:
Hope this helps :)
The water cycle is the process through which water evaporates from the earth's surface, rises into the atmosphere, cools and condenses into rain or snow in clouds, and then falls back to the surface as precipitation. Water that falls on land gathers in rivers and lakes, soil, and porous rock strata, and much of it goes back into the seas to evaporate. Water flows in and out of the system.
✄-----------------------------------hope it helps...have a great day!!Can someone one help me please !!!
Answer:
Current in the circuit(I) = 0.5 ampere
Explanation:
Given:
Number of resistors = 2 (10 ohm each)
Series of resistors
EMF = 10 volt
Find:
Current in the circuit(I)
Computation:
Total resistance in series = R1 + R2
Total resistance in series = 10 + 10
Total resistance in series = 20 ohm
Current in the circuit(I) = EMF / Total resistance in series
Current in the circuit(I) = 10 / 20
Current in the circuit(I) = 0.5 ampere
What can cause electricity to jump across a gap
Answer:
It often happens in a circuit which was conducting,and a switch is opened. Any inductance in the circuit will help the voltage increase due to back emf,and this can cause breakdown of the air insulation and an arc can form.
Explanation:
What is cultural discontinuity?
Answer:
Disconnections and discrepancies
between school-based norms and values and those of
some pupils, especially those from
nondominant cultures, are referred to
as cultural discontinuity.
☆-----------------------------☆
☆Hope it helps...
☆Have a great day!!!
If there are 6 coulombs of charge moving through a wire in 2 seconds. How many amps are moving through this wire?
Answer:
Current = 3 Amperes
Explanation:
Given the following data;
Quantity of charge = 6 C
Time = 2 seconds
To find how many amps are moving through this wire;
Mathematically, the quantity of charge passing through a conductor is given by the formula;
Quantity of charge = current * time
Substituting into the formula, we have;
6 = current * 2
Current = 6/2
Current = 3 Amperes
At what point does the roller coaster have the most potential energy?
Answer:
Gravitational POTENTIAL ENERGY is greatest at the highest point of a roller coaster.
Explanation:
hope this helps
have a great day/night :)
Electromagnetic radiation that is used by humans and animals to see is called the visible light spectrum.
Group of answer choices
True
False
Answer:
True Hope it's helpful. plz mark me as brainlist.Which type of electromagnetic waves have the highest energy?
ultraviolet waves
visible light waves
gamma rays
infrared waves
Answer:
Gamma rays
Explanation:
gamma rays have the highest energy and the shortest wavelength
Compared to the image which drawing is the closest
Answer:
The one on the left
Explanation:
Answer:
The one on the left
Explanation: