The mass of lead = 22,939 kg
Further explanationGiven
mass alcohol=1600 kg
The density of lead =11300kg\m³ and density of alcohol=790kg\m³
Required
mass of lead
Solution
volume of alcohol[tex]\tt V=\dfrac{mass}{\rho}\\\\V=\dfrac{1600}{790}\\\\V=2.03~m^3[/tex]
the volume of lead=volume of alcohol=2.03 m, so the mass of lead :
[tex]\tt m=\rho\times V\\\\m=11300\times 2.03\\\\m=22,939~kg[/tex]
5. A cycle accelerates from rest at a constant acceleration of 0.4m/s/s for 20 seconds then
stops pedalling and slowed to standstill at constant deceleration over distance of 260m.
Calculate:
a. Distance travelled by cyclist in the first 20seconds
b. The speed of the cyclist at end of this time
Answer: oh my. I just had the answer in my head but its gone now
Explanation:
List the correct sequence taps should be used to form threads the full depth of a blind hole.
Two football players have the same momentum. One player with a mass of 100 kg is moving at a velocity of 4 m/s. If the second player is moving with a speed of 5.5 m/s, what must his mass be
Answer:
The mass of the second player is 72.73 kg
Explanation:
Given;
mass of the first player, m₁ = 100 kg
velocity of the first player, u₁ = 4 m/s
velocity of the second player, u₂ = 5.5 m/s
let the mass of the second player = m₂
Since they have equal momentum, the mass of the second player will be obtained by equating their momentum.
m₁u₂ = m₂u₂
100 x 4 = 5.5m₂
400 = 5.5m₂
m₂ = 400 / 5.5
m₂ = 72.73 kg
Therefore, the mass of the second player is 72.73 kg
1. Which of the following air pollutants combines with haemoglobin in our blood and renders it incapable to
transport oxygen within our body?
a) Carbon dioxide
b) Carbon monoxide
c) Oxide of sulphur
d) CFCs
What happens to the gravitational force between two objects if:
a. the mass of one is doubled?
b. The masses of both are doubled?
c. The distance between them is doubled?
Explanation:
r madhava I have a great time lagega ki deri na koira amar in the the
Using F=mXa
1.
Maria's bicycle has a mass of 18.0 kg. What is the net force needed to attain the
acceleration of 1.62 m/s2?
Answer:
29.16 NExplanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
force = 18 × 1.62
We have the final answer as
29.16 NHope this helps you
what does this graph represent
Answer:
I think it represents the center of a right angle..?
What beliefs about goverment did early english colonists bring to america?
What's the frequency of a wave with a wavelength of 10 and velocity of 200m/s?
Answer:
[tex]\boxed {\boxed {\sf 20 \ Hz}}[/tex]
Explanation:
The frequency of a wave can be found using the following formula.
[tex]f=\frac{v}{\lambda}[/tex]
where f is the frequency, v is the velocity/wave speed, and λ is the wavelength.
The wavelength is 10 meters and the velocity is 200 meters per second.
1 m/s can also be written as 1 m*s^-1Therefore:
[tex]v= 200 \ m*s^{-1} \\\lambda = 10 \ m[/tex]
Substitute the values into the formula.
[tex]f=\frac{200 \ m*s^{-1}}{10 \ m}[/tex]
Divide and note that the meters (m) will cancel each other out.
[tex]f=\frac{200 \ s^{-1}}{10 \ }[/tex]
[tex]f=20 \ s^{-1}[/tex]
1 s^-1 is equal to HertzTherefore, our answer of 20 s^-1 is equal to 20 Hz[tex]f= 20 \ Hz[/tex]
The frequency of the wave is 20 Hertz
When the 5.0 kg cylinder fell 100 m, the final temperature of the water was
°C and the change in temperature was
°C.
When the 5.0 kg cylinder fell 500 m, the final temperature of the water was
°C and the change in temperature was
°C.
Answer:When the 5.0 kg cylinder fell 100 m, the final temperature of the water was
✔ 26.17
°C and the change in temperature was
✔ 1.17
°C.
When the 5.0 kg cylinder fell 500 m, the final temperature of the water was
✔ 30.86
°C and the change in temperature was
✔ 5.86
°C.
Explanation:
Answer:
26.17. 1.17. 30.86. 5.86.
Explanation:
This PE I need help real quick
Answer:
Muscular helps you move while Cardiovascular helps you breathe, not move. Hope this helps, I tried my best :)
Explanation:
Muscular endurance relates to how your body is able to move, your muscles.
Cardiovascular is how your body supplies blood and helps you breathe, (an organ in this system is heart) :)
A ship
a sound
wave
sends
straight
to the sea bed and receves the echo
1.5 seconds later. The speed of sound in
water
How deep is the
at that place?
collin
is 1500 m/s.
Sea
sea
Answer:
The sea bed is 1125 m deep.
Explanation:
Speed
It's the rate of change of the distance (d) traveled by an object over time (t).
The speed can be calculated by the formula:
[tex]\displaystyle v=\frac{d}{t}[/tex]
It's known the speed of sound in water is v=1500 m/s. A sound wave is sent to the sea bed and bounces back to the ship 1.5 seconds later.
That is the time the wave takes to travel twice the distance from the ship to the sea bed, thus the required distance uses half of that time or t=1.5/2 = 0.75 seconds.
Solving the equation for d:
d = v.t
d = 1500 m/s * 0.75 s
d = 1125 m
The sea bed is 1125 m deep.
Define Force
Check all that apply
Answer:
Push or pull
Explanation:
Why does it take more effort to make a bowling ball accelerate 25m/s^2 than to make a tennis ball accelerate 25m/s^2? Make sure to include witch law explains this.
Answer:
In explanation
Explanation:
This question can be explained by using Newton Second Law of motion:
[tex]F = ma[/tex]
where,
F = Force applied
m = mass of object
a = acceleration of object
We are given a constant acceleration of 25 m/s² in case of both bowling ball and tennis ball.
Therefore,
[tex]F = (25m/s^2) m\\[/tex]
It is clear from this equation that for constant acceleration, the force required for the object is directly proportional to the mass of the object.
Since, the mass of bowling ball is greater than the tennis ball. Therefore, bowling ball takes more effort than tennis ball to accelerate to 25 m/s²
What is the effect of increasing velocity on EK? I need this ASAP and in CER paragraph form.
Answer:Because kinetic energy is proportional to the velocity squared, increases in velocity will have an exponentially greater effect on translational kinetic energy. Doubling the mass of an object will only double its kinetic energy, but doubling the velocity of the object will quadruple its velocity.
Explanation:
Which type of wave is faster?/Seismic Waves
Answer:
me
Explanation:
You paddle a canoe with a force of 325 N. You and the canoe have a
combined mass of 250 kg. What is the acceleration of the canoe?
A. 0.8 m/s2
B. 0.3 m/s2
C. 1.9 m/s2
D. 1.3 m/s2
Which of the following is NOT true of all the inner planets?
A
They are made of solid rock.
B
They are called gas giants.
C
They do not have rings.
D
They have impact craters.
Hi there! :)
[tex]\large\boxed{\text{B. They are called gas giants.}}[/tex]
In the solar system, we can categorize the planets as such:
Inner planets: Mercury, Venus, Earth, Mars
Outer planets: Jupiter, Saturn, Uranus, Neptune
The Inner planets are the only planets that consist of solid rock. They also do not have rings and have impact craters due to their early formation.
In comparison, all of the outer planets are primarily made up of gaseous material and contain rings.
Therefore, the correct choice is B.
does anyone know the answers to these ?
An object is in free fall. After 10 seconds calculate the distance fallen? *
A diver jumps off a 60 m cliff with an initial horizontal velocity of 3m/s. Find the time needed to reach water?
Answer:
9.81 × 10 = 98.1 meters
vertical displacement is s=1/2 at^2 + vt
initial vertical velocity is 0 so s=1/2 at^2
a in this instance is gravitational acceleration so 60m= 1/2 (9.81)t^2
solve for t, t = 3.497s. //I corrected this answer as just now I misread horizontal as vertical.
*For free fall,
Initial velocity (u) = 0
g = 9.8m/s²
time(t) = 10s
Using the second equation of free fall;
s = ut + 1/2gt²
where 's' is the distance fallen.
s = 0(10) + 1/2(9.8)(10)²
s = 1/2(9.8)(100)
s = 490m.
*Initial horizontal velocity (Ux) = 3m/s
Initial vertical velocity (Uy) = 0
since it did not start with any vertical velocity.
Using the second equation of vertical downward motion:
h = Uyt + 1/2gt²
where h is the height of the cliff = 60m.
g = 9.8m/s²
60 = 0(t) = 1/2 (9.8)(t²)
60 = 4.9t²
t = √(60/4.9) = 3.5s.
help asap i have no clue what i am doing LOL
Answer:
no3. is is the first bubble answer, no4. is the middle answer
Explanation:
What is the chemical formula for sulfur trioxide? O SO3 O SIO3 8 O SO O SIO
Sulfur trioxide/Formula
SO3
this is what i looked up and got
15 pointsss please help meeeeeeeeeee
The velocity of an object can be calculated as:
starting velocity + (_____________________ * delta-t)(2.5 Points)
(one option)
A. acceleration
B. displacement
C. instantaneous velocity
D. average velocity
Answer: D. average velocity. i'm not sure if this is right but i remember doing this last week
Explanation:
R 1 = 4 Ω, R 2 = 4 Ω и R 3 = 6 Ω?
Answer:
2n answer of 6
place it at the place of ?mark
Which of the following is a form of mechanical energy?
A. Thermal energy
OB. Nuclear energy
O C. Chemical energy
O D. Gravitational potential energy
Answer:
D. gravitational potential energy
Explanation:
Y’all this assignment determines if i pass , please help me out.. Part 2: Graphing the Effect of Changing Mass and Velocity on Kinetic Energy.
Answer:
* energy is proportional to masses. in a graph it would look like a line
* kinetic energy varies with the square of the velocity, In a graph it gives rise to a quadratic curve
Explanation:
Kinetic energy is defined by
K = ½ m v²
when analyzing this expression we can see:
* energy is proportional to masses. Therefore, doubling the mass doubles the kinetic energy and if the mass rises 4 times the energy rises 4 times, that is, they are directly proportional, in a graph it would look like a line
* kinetic energy varies with the square of the velocity. Therefore by doubling the speed the energy goes up 4 times. In a graph it gives rise to a quadratic curve
Cars, trucks, and SUVS use seatbelts as safety devices. Roller coasters use
bars. Use Newton's 1* Law of Motion to explain how the seatbelt or restraint
bar help keep you safe ina collision. Be sure to identify forces and velocity.
sorry
Explanation:
Sorry
A 2100 lb (1 kg=2.2 lbs) car is using 4500 N of traction in order to move with a constant
velocity of 67 mph (29.8 m/s). What is the acceleration of this 9300 N vehicle?
Answer:
[tex]a = 0\ m/s^2[/tex]
Explanation:
The acceleration of a body is defined as the change in velocity of an object, with respect to time. So, in order to produce and acceleration in any object, the velocity of that object must change. And, if the velocity of the object is not changing with respect to time, then the object is said to have a uniform motion. The acceleration of the object in such uniform motion is always zero. Because the change in velocity is zero.
[tex]acceleration = change in velocity/time\\acceleration = 0 / time\\acceleration = 0 m/s^2[/tex]
Since, the car in this case is moving with a constant speed. Therefore, its acceleration will also be zero.
a = 0 m/s²
Can some one help Please im not good at sports!!!!
Answer:
I think its tennis but im not sure
Explanation:
Can someone please help me with my physics hw
