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Questions (317)
Whu does a periodic table has opposing factors
1 answer
139 views
list the fraction 1/9, 2/15 and 3/15 from least to greatest.
2 answers
220 views
At what temperature will it reading be exactly correctly?
1 answer
192 views
Rewrite the expression 8×4−2×3+8÷2 with parentheses to make this statement true: 8×4×−2×3+8÷2 = 25.
2 answers
353 views
Rewrite the expression 8×4−2×3+8÷2 with parentheses to make this statement true: 8×4×−2×3+8÷2 = 25.
8×4×-
1 answer
430 views
Two characteristics 15 Newton and 24 Newton are inclined at angle 60 to each other find the resultant force
1 answer
226 views
Design a flowchart or pseudocode for a program that accepts three numbers from a user and displays a message if the sum of any
2 answers
2,056 views
(3x+5y²)(2y-1)
2 answers
384 views
use the value 22/7 for / in this exercise (1) calculate the volume of a cylindrical steel bar which is 8cm long and 3.5cm in
2 answers
406 views
a sector with an angle 110 degree at the centre of a circle is cut away from a circular piece of paper of radius 70cm,the
1 answer
1,254 views
Mr. Rosenthal want to make gumbo, a type of soup. he buys some shimp for $7.95, an onion for $0.26.and a bunch of celery $1.03.
4 answers
271 views
Mr. Rosenthal want to make gumbo, a type of soup. he buys some shimp for $7.95, an onion for $0.26. How much does he spend on
2 answers
403 views
which fraction is equivalent to 4/6
1/3 2/4 8/12 6/8
2 answers
261 views
A water level in a burette is 30cm cube if 55drops of water fall from the burette and the average volume of 1 drop is 0.12cm
4 answers
762 views
A force of 1.50 N acts on a 0.200-kg cart so as to accelerate it along an air track. The track and force are horizontal in line.
0 answers
388 views
3 3/4 X 2 2/1
2 answers
161 views
a painting 16cms wide and 9 cms long is surrounded by a frame of uniform width x. If the area of the frame is 84 square
1 answer
622 views
If a pump discharges 284 liters/min of water whose density is 985 kg/m3, find (a) the mass flow rate in kg /min, b) the total
1 answer
4,307 views
Given f '(x) = (2 - x)(6 - x), determine the intervals on which f(x) is increasing or decreasing
2 answers
1,321 views
A triangle has sides 8 cm and 5 cm and an angle of 90 degrees between them. Calculate the smallest angle between them.
3 answers
525 views
examples of biological science
1 answer
495 views
identify and explain in five inhumane farming practices
1 answer
855 views
Hi,
I have a history essay coming up with the question: Explain Cause and Effect relationship between WW2, Cold War, and Civil
4 answers
684 views
1)The resultant wave from the interference of two identical waves traveling in opposite directions is described by the wave
0 answers
674 views
As in the figure below, a simple harmonic oscillator is attached to a rope of linear mass density 5.4 ✕ 10−2 kg/m, creating
1 answer
1,030 views
The wave function (x,t)=(0.03m)sin(2.2x-3.5t) is for a harmonic wave on a string. (a) In what direction does this wave travel
2 answers
2,575 views
A harmonic wave with a frequency of 90 Hz and an amplitude of 0.025 m travels along a string to the right with a speed of 20
1 answer
738 views
A physical pendulum in the form of a thin rod of length 1.04 m is pivoted at point P, a distance x from the pendulum's center of
0 answers
798 views
A simple harmonic oscillator's velocity is given by vy(t) = (0.86 m/s)sin(11t − 5.55). Find the oscillator's position,
1 answer
1,047 views
What is the moment of inertia for a solid cylinder?
2 answers
592 views
A uniform horizontal beam with a length of 8m and a weight of 200N is attached to a wall by a pin connection. Its far end is
1 answer
2,035 views
A uniform ladder of length L rests against a smooth, vertical wall as shown in the figure below. If the mass of the ladder is m
0 answers
1,273 views
3)A baseball player holds a 36oz bat (weight = 10N) with one hand at the point O (Figure below). The bat is in equilibrium. The
2 answers
3,871 views
An electric motor exerts a constant torque of 10N⋅m to the shaft of a grindstone with mass 16kg and radius 0.5m. If the system
1 answer
1,583 views
The uniform block of width W and height H in the figure below rests on an inclined plane in static equilibrium. The plane is
4 answers
651 views
How do I calculate String mass density from what I got frequency= 30.0Hz, segment length= 42.5cm , nodes=2, string length=83.5cm
1 answer
551 views
How do I calculate density of a string with what I have? The string mass is 12g and length is305.4cm
1 answer
418 views
A solid cylinder of mass m and radius R rolls down a parabolic path PQR from height without slipping (assume R ≪ H) as shown
5 answers
2,544 views
At one point during its swing, a wrecking ball exerts a tension force of
FT = 9825 N on its cable, which makes an angle of α =
0 answers
720 views
A wheel starts from rest and in 10.65 s is rotating with an angular speed of 5.810 π rad/s.
(a) Find the magnitude of the
1 answer
760 views
A water molecule, consisting of two hydrogen atoms and one oxygen atom, resides in the plane of an x-y coordinate system. The
1 answer
765 views
A ballistic pendulum is used to measure the speed of bullets. It comprises a heavy block of wood of mass M suspended by two long
1 answer
2,766 views
A helicopter rescues a trapped person of mass m = 67.0 kg
from a flooded river by lifting the person vertically upward using a
1 answer
759 views
Please help. If you need the figure, let know how I can show you and I will do it. A particle moves in the xy plane (see the
4 answers
1,215 views
A 1.80-g hailstone, which can be modeled as a particle, falls a vertical distance of 155 m at constant speed. What is the work
1 answer
1,060 views
A constant force of magnitude 5.75 N is exerted on an object. The force's direction is 57.5° counterclockwise from the positive
2 answers
877 views
A newly established colony on the Moon launches a capsule vertically with an initial speed of 1.453 km/s. Ignoring the rotation
5 answers
664 views
A newly established colony on the Moon launches a capsule vertically with an initial speed of 1.453 km/s. Ignoring the rotation
2 answers
624 views
In each situation shown in the figure below, a ball moves from point A to point B. Use the following data to find the change in
1 answer
1,074 views
A 0.410-kg soccer ball is kicked at an initial speed of 32.5 m/s at an angle of 33.0° to the horizontal. What is the kinetic
1 answer
1,971 views
If α = 40°, β = 60°, and M = 4.0 kg, determine the tension in string 1 & 2.
-------/ / 1 /2 / . . . Blockmass Alpha is on the
2 answers
4,789 views
The period of oscillation of a near-Earth satellite (neglecting atmospheric effects) is 84.3 min. What is the period of a
1 answer
2,122 views
can somebody explain how 5.06(g-a)-4.24(g+a) become 0.82 g - 9.3 a
I'm confused
1 answer
431 views
Find the acceleration of the block of mass M = 5.06 kg in the figure below. (Take m = 4.24 kg.)
10 answers
1,028 views
The figure below shows a box of dirty money (mass m1 = 4.0 kg) on a frictionless plane inclined at angle θ1 = 35°. The box is
2 answers
1,941 views
A 2.26 kg object is subjected to three forces that give it an acceleration
a= −(8m/s^2)i + (6m/s^2)j. If two of the three
4 answers
961 views
Given that Earth orbits the Sun with a semimajor axis of 1.000 AU and an approximate orbital period of 365.24 days, determine
2 answers
694 views
Find the acceleration of the two blocks sliding down the incline in the figure below. (Take m1 = 1.1 kg and m2 = 1.8 kg.
0 answers
719 views
Given that Earth orbits the Sun with a semimajor axis of 1.000 AU and an approximate orbital period of 365.24 days, determine
1 answer
683 views
In the figure below, 5.2 kg block A and 6.2 kg block B are connected by a string of negligible mass. Force A = (16 N) acts on
1 answer
956 views
Somebody please shows me step by step to the answer key for part b. I got stuck at it for days The answer key is .126yr but my
5 answers
750 views
A race car travels 40 m/s around a banked (45° with the horizontal) circular (radius = 0.20 km)
track. What is the magnitude of
1 answer
1,685 views
a bug on a turntable which is rotating at 2.00 radians over second sits there for 1.7 seconds before he is brushed away. What
1 answer
801 views
The Moon orbits Earth in a nearly circular orbit that lasts 27.32 days. Determine the distance from the surface of the Moon to
1 answer
890 views
Can somebody shows me step by step with numbers on how to calculate the period for this question-equation. A black hole is an
5 answers
682 views
Find the acceleration of the two blocks sliding down the incline in the figure below. (Take m1 = 1.1 kg and m2 = 1.8 kg.
2 answers
723 views
Somebody please show me how to get to the answer key for this question.I have been stuck at this question for days.
Two black
1 answer
535 views
Two banked curves have the same radius. Curve A is banked at an angle of 12°, and
curve B is banked at an angle of 20°. A car
0 answers
732 views
A skydiver of mass 81.5 kg (including outfit and equipment) floats downward suspended from her parachute, having reached
5 answers
798 views
A mass m1 = 28 kg on a frictionless ramp is attached to a light string. The string passes
over a frictionless pulley and is
1 answer
1,628 views
Two black holes (the remains of exploded stars), separated by a distance of
10.0 AU (1 AU = 1.50 ✕ 10^11 m), attract one
0 answers
676 views
Two spheres of mass
M1 = 810 kg and M2 = 390 kg are placed 4.80 m apart. A particle of mass m = 12.0 kg is now placed midway
2 answers
2,464 views
Can somebody shows me how to get to the answer key? The answer for a) is 1.5, b) rP is 1.34AU and rA is 2.01AU and c) is .335AU
C
0 answers
591 views
The figure below is a scaled representation of a planet's orbit with a semimajor axis of 1.528 AU. (Use the exact values you
3 answers
993 views
I don't understand this question at all. If you want to see the figure, let me know The figure below is a scaled representation
2 answers
615 views
Does anybody know how I can find the mass of the electron for this question. I need to find it first to solve for the real one
3 answers
600 views
A black hole is an object with mass, but no spatial extent. It truly is a particle. A black hole may form from a dead star. Such
2 answers
729 views
Consider the Earth and the Moon as a two-particle system.
(a) Find the gravitational field of this two-particle system at the
3 answers
1,281 views
The radius of circular electron orbits in the Bohr model of the hydrogen atom are given by (5.29 ✕ 10^−11 m)n^2, where n is
1 answer
914 views
A box of mass m rests on a rough, horizontal surface with a coefficient of static friction μs. If a force Fp arrow is applied
1 answer
1,714 views
A small sphere of mass
m = 0.520 kg is dropped from rest into a viscous liquid in which the resistive force on the sphere can be
1 answer
832 views
Steve how does √((1.342t^2)^2 + (6.040t)^2) = 12.0
t = 1.839 I don't get it can you explain further? I took the square root
1 answer
458 views
can somebody shows me how to get to the answer key step by step. the answer key is 2.78i-10.2j A 1.49-kg particle initially at
2 answers
609 views
A sled and rider have a total mass of 58.4 kg. They are on a snowy hill accelerating at 0.4g. The coefficient of kinetic
1 answer
3,395 views
A sled and rider have a total mass of 58.4 kg. They are on a snowy hill accelerating at 0.4g. The coefficient of kinetic
0 answers
746 views
Somebody please shows me how to solve for b) and c)step by step. I found a)=2.27s but stuck there. A 1.49-kg particle initially
1 answer
557 views
The radius of circular electron orbits in the Bohr model of the hydrogen atom are given by (5.29 ✕ 10−11 m)n2, where n is
3 answers
1,263 views
The radius of circular electron orbits in the Bohr model of the hydrogen atom are given by (5.29 ✕ 10−11 m)n2, where n is
0 answers
620 views
A box of mass m rests on a rough, horizontal surface with a coefficient of static friction μs. If a force F with arrowp is
1 answer
1,494 views
A 1.49-kg particle initially at rest and at the origin of an x-y coordinate system is subjected to a time-dependent force of
F(t)
1 answer
692 views
A force of 75.0 N in the horizontal direction is required to set a 37.3-kg box, initially at rest on a flat surface, in motion.
2 answers
804 views
A 1.57-kg particle initially at rest and at the origin of an x-y coordinate system is subjected to a time-dependent force of
F(t)
3 answers
1,021 views
Harry Potter decides to take Pottery 101 as an elective to satisfy his arts requirement at Hogwarts. He sets some clay
(m = 4.00
1 answer
1,702 views
A sled and rider have a total mass of 57.2 kg. They are on a snowy hill accelerating at 0.5g. The coefficient of kinetic
1 answer
753 views
can somebody shows me how to get to the answer key-- a)=2.51s, b)=19.9m, and c)=11.8i-16.1j A 1.57-kg particle initially at rest
0 answers
534 views
A 1.49-kg particle initially at rest and at the origin of an x-y coordinate system is subjected to a time-dependent force of
F(t)
0 answers
689 views
A block with mass m1 hangs from a rope that is extended over an ideal pulley and attached to a second block with mass m2 that
1 answer
2,913 views
A student takes the elevator up to the fourth floor to see her favorite physics instructor. She stands on the floor of the
1 answer
3,630 views
could somebody shows me how to get to the answer key. The answer key is 1290N.The x and y coordinates of a 4.30-kg particle
1 answer
625 views
where does 4.90s come from when t when t was given as 4.20s? forcex=t^4-5t=4.20^4-5(4.20)=290
forcey=7t^2+1=7*(4.90)^2 +1=169
0 answers
386 views
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