Answer:
The distance covered along the horizontal axis is [tex]s = 360 \ m[/tex]
The distance covered along the vertical axis is [tex]h = 78.4 \ m[/tex]
Explanation:
From the question we are told that
The horizontal velocity is [tex]u_x = 90 \ m/s[/tex]
The time considered is [tex]t = 4 \ s[/tex]
Generally the distance which the bullet will cover in the horizontal direction for the given time is mathematically represented as
[tex]s = u_xt + \frac{1}{2}* at^2[/tex]
Here a is the acceleration along the horizontal direction and the value is [tex]a = 0 \ m/s^2[/tex]
So
[tex]s = 90 * 4 + \frac{1}{2}* * 0 * 4^2[/tex]
=> [tex]s = 360 \ m[/tex]
Generally the distance which the bullet will cover in the vertical direction for the given time is mathematically represented as
[tex]h= u_y t + \frac{1}{2}* gt^2[/tex]
Here [tex]u_y[/tex] is the initial velocity of the bullet along the vertical axis and the value is [tex]u_y = 0 \ m/s[/tex]
[tex]h = 0 * 4 + \frac{1}{2}* 9.8 *4^2[/tex]
=> [tex]h = 78.4 \ m[/tex]
As the distance between two charged particles increases, the force of attraction __________(increases/decreases). This is a(n) __________ (direct/indirect) relationship. Explain your evidence and reasoning with observations from the simulation.
Answer: decreases.
direct.
Explanation:
when you have two objects which are far apart from each other, when the distance increases the forces of attraction decreases and vice versa when the distance decreases the forces of attraction also increases.
this is a direct relationship, from careful observation and monitoring of the simulation, a pattern is noticeable by which an increase in one variable causes an opposite effect on the other variable.
The solar energy strikes the deck at the rate of 1400 W on every square metre.
The steel plate of the deck is 0.010 m thick.
Steel has a density of 7800 kg / m³ and a specific heat capacity of 450 J / (kg °C).
13% of the solar energy striking the deck is absorbed and the rest is reflected.
Using these figures, calculate
1. how many joules of solar energy are absorbed by 1.0 m² of the deck in 1.0 s,
number of joules
br[ o o o o o o o o o o o o o o o o o o o o opppppo o o o. oo o o o
Identify the type of motion that occurs when a body moves around its own center of mass.
circular
revolution
rotation
resolution
Answer:
circular
Explanation:
Hi!! Can someone clarify if I put the right answer?
The answer is false. You are correct.
Answer:
answer =false
you are correct
the weight of a person is 400N. he exerts 400N/m² pressure if he stands with both feet. Find the area of the floor covered by his both feet.
Answer:
1 m²Explanation:
The area of the floor covered by his both feet can be found by using the formula
[tex]a = \frac{f}{p} \\ [/tex]
f is the force
p is the pressure
From the question we have
[tex]a = \frac{400}{400} = 1 \\ [/tex]
We have the final answer as
1 m²Hope this helps you
HEELLLLLPPPPPPPPPPPP MEEEEEEEEEE!!!!!!!!!!!!
Which statement best describes the thermosphere?
The thermosphere sits directly below the troposphere.
Lighter gases such as nitrogen and oxygen rise to the top of the thermosphere.
Heavier gases such as hydrogen and helium stay at the bottom of the thermosphere.
The atmosphere is so thin that gas molecules rarely contact each other.
Answer:
I think the second one
Explanation:
its the only one that makes since tell me if I'm wrong
Answer:
the answer is "The atmosphere is so thin that gas molecules rarely contact each other."
Explanation: just took the semester test
A student wearing a frictionless roller skates on a horizontal is pushed by a friend with a constant force of 55N. How far must the student be pushed, starting from rest, so that her final kinetic energy is 362 J
Answer:
6.58m
Explanation:
The kinetic energy = Workdone on the roller
Workdone = Force * distance
Given
KE = Workdone = 362J
Force = 55N
Required
Distance
Substitute into the formula;
Workdone = Force * distance
362 = 55d
d = 362/55
d = 6.58m
Hence the student must push at a distance of 6.58m
A skydiver decides to test which parachute will make her fall faster. The mass of the first parachute is 100kg and the mass of the second parachute is 150kg. Surprisingly, she found that she fell at the exact same speed with both parachutes. Why did the parachutes fall at the same speed?
Answer:
gravity
Explanation:
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1) A rock was thrown horizontally from a 500.0 m high cliff. It
strikes the ground 100.0 m from the base of the cliff. At
what speed was it thrown?
Answer:
twenty two miles per hour
A cannonball is shot up in the air with a vertical speed of 24 miles what is the cannon balls vertical speed just before it hits the ground?
Answer:
I think it will back towards the earth because earth gravitional field will attract to Wards
During a chemical reaction the reactants are re-arranged into new substance products true or false
Answer:
True
Explanation: Magic
!!Help!!
A 1.5kg apple falls from a tree. If the apple falls for 2.75s before striking the ground, determine how far in meters the apple dropped before hitting the ground
Answer:
s = 37.81 m
Explanation:
Given that,
Mass of an apple, m = 1.5 kg
The apple falls for 2.75s before striking the ground.
We need to find how far the apple dropped before hitting the ground. It means we need to find the distance covered. Using the second equation of motion to find it :
[tex]s=ut+\dfrac{1}{2}gt^2[/tex]
u is initial velocity, u = 0 (at rest)
[tex]s=\dfrac{1}{2}gt^2\\\\s=\dfrac{1}{2}\times 10\times (2.75)^2\\\\=37.81\ m[/tex]
So, Apple dropped 37.81 m before hitting the ground.
can someone help me? i will give brainliest
Answer:
The mechanism that drives plate tectonics is the heat and gravity that are fundamental to the process Lithospheric plates are part of a planetary scale thermal convection system. The energy source for plate tectonics is Earth’s internal heat while the forces moving the plates are the “ridge push” and “slab pull” gravity forces.
And the one explanation for the movement of the Earth’s crustal plates is believed to be convection currents which occur in the semi-molten mantle. These convection currents are created by heat from within the earth – much of which is generated by radioactive decay in the core. Convection currents in the mantle.
Explanation:
A student moves a box across the floor by exerting 56.7 N of force and doing 195 J of
work on the box. How far does the student move the box?
A.3.4 m
B. 11,056 m
C.138 m
D.0.29 m
Answer:
A. 3.4 m
Explanation:
Given the following data;
Force = 56.7N
Workdone = 195J
To find the distance
Workdone is given by the formula;
[tex] Workdone = force * distance[/tex]
Making "distance" the subject of formula, we have;
[tex] Distance = \frac {workdone}{force} [/tex]
Substituting into the equation, we have;
[tex] Distance = \frac {195}{56.7} [/tex]
Distance = 3.4 meters.
What role do electromagnets play in making a motor spin?
Answer:
I'm going to try to explain it to you easy as possible so basically when a motor is placed between two poles of another magnet a current from a voltage flow to the coil and a magnet field is produced around the electromagnetic and the poles of the magnet interact with the poles from the electricmatic causing the motor to turn in more coils growing stronger into the motor
In the following reaction, what is the ratio of zinc chloride (ZnCl2) to potassium chloride (KCl)? 2K(MnO4) + ZnCl2 → Zn(MnO4)2 + 2KCl 10.
Answer:
1:2
Explanation:
There’s only 1 set of zinc chloride and there’s 2 sets of potassium chloride
if a runner travels 1600m in 420 seconds, her average speed is
Answer:
the answer is 3.8m/s in meters per second
HELP ASAP!!! How many electrons fit into each electron shell?
K
L
M
N
Answer:
k = 2
L = 8
M = 18
N = 32
plz mark me as a brainelist
advantages and disadvantages of a secondary cell
Answer:
i hope this helps!!!!
!!!have a good day!?! <3
How does the electric force between two charged particles change if the
distance between them is reduced by a factor of 2?
A. It is reduced by a factor of 2.
B. It is increased by a factor of 4.
C. It is increased by a factor of 2.
D. It is reduced by a factor of 4.
Answer:
increased by a factor of 4
Explanation:
These the flow of electrons (the current) and where some of the electrons' energy gets converted into heat. (Lessons 5.01-5.03) electric currents Insulators Resistors Conductors
Answer: The answer is resistors
Explanation: I just took the unit test and it was correct
How much work is done in lifting a 300 Newton rock 10 meters off the ground?
Answer:
3000 JExplanation:
The work done by an object can be found by using the formula
workdone = force × distance
From the question we have
workdone = 300 × 10
We have the final answer as
3000 JHope this helps you
A bicyclist with a mass of 50 kg is traveling at a rate of 30 m/s. It accelerates to a rate of 50 m/s in 5 seconds. What is the net force acting on the bicycle? *
Answer:
F=m*(v^2/r)
F=82*(8^2/30)
F=174.9N
Explanation:
brainlest pls
I am pushing on a box with 15 N of force, and my younger cousin is pushing the box (in the same direction as me) with 10 N of force. How much is the net force on the box?
Help
what is gram used to measure
A. volume
B. Mass
C. distance
D. Time
Answer:
measure what
Explanation:
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Answer:
B. Mass
Explanation:
If the velocity of a car is 44 m/s west, how far can it travel in 0.80 hours?
Answer:
try typing this into brainly. i just took my phyics exam and i think that was one i found
please help me asdrtyuio
Answer:
9. The Sun's Gravity
10. The core is the densest layer
Mass of an object that weighs 75 n
Answer:
im not sure
Explanation:
i need points
You use a lever to lift a heavy tree branch. You apply a force of 30 N and the
lever lifts the branch with a force of 120 N. What is the mechanical advantage
of the lever?
A. 4
B. 0.25
C. 2
D. 90
Answer:
4
Explanation:
Given parameters:
Force input = 30N
Force output = 120N
Unknown:
Mechanical advantage of the lever = ?
Solution:
The mechanical advantage is the quantity that describes how much a simple machine is able to multiply force.
This is expressed as:
Mechanical advantage = Force output / Force input
Mechanical advantage = [tex]\frac{120}{30}[/tex] = 4
What kind of energy is stored when you stretch a spring?
A. Kinetic energy
B. Chemical energy
C. Elastic energy
D. Gravitational potential energy
Answer:
it's B
Explanation:
Elastic potential energy is energy stored as a result of applying a force to deform an elastic objects. The energy is stored until the force is removed and the object springs back to it's original shape, doing work in the process. The deformation could involve compressing, stretching or twisting the object
Answer: Elastic energy
Explanation:
A PE X
