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Physics
Page 44
Questions (147,484)
A police car moving at 41 m/s is initially behind a truck moving in the same direction at 17 m/s. The natural frequency of the
5 answers
asked by
chloe
2,508 views
the p.d of 12v is applied to a 7.5 resistance for a period of 5seconds. calculate the electric charge transferred in this time
5 answers
asked by
violet
2,109 views
distance=8m,speed=42/5centimeter/sec,time=?
5 answers
asked by
rahul
3,416 views
The energy of an X-RAY quantum of wavelength 1.0 X 10^-10 m is.
its answer is 1.99 X 10^ -15, but i don't know how to solve it ,
5 answers
asked by
Shahab Mirza
2,274 views
1. In moving an object of mass 10 kg through a distance of 8.0 m, 40 J of work is done. The average force exerted is?
my answer:
45 answers
asked by
Lisa
3,701 views
A 75 kg man weighs 735 N on the Earth's surface. How far above the surface of the Earth would he have to go to "lose" 15% of his
6 answers
asked by
Anonymous
5,759 views
A slab of ice floats on a freshwater lake.
What minimum volume must the slab have for a 50.0kg woman to be able to stand on it
4 answers
asked by
shree
11,966 views
Levers Quick Check
A class __ lever never has a mechanical advantage. A class __ lever always has a mechanical advantage. A class
4 answers
asked by
X
784 views
A car m = 1850 kg is traveling at a constant speed of v = 30 m/s. The car experiences a force of drag (air resistance) of Fd =
4 answers
asked by
carlo
8,047 views
Three objects are moving along a straight line as shown in the figure. Taking the positive direction to be to the right, what is
7 answers
asked by
Anonymous
14,777 views
An X-ray photon of wavelength 0.954 nm strikes a surface. The emitted electron has a kinetic energy of 935 eV.
What is the
5 answers
asked by
Amy
12,842 views
A light rope is wrapped several times around a large wheel with a radius of 0.435 m. The wheel?
A light rope is wrapped several
4 answers
asked by
BB
3,572 views
A kickoff sends a football with an initial velocity of 25 m/s at an angle of 50 degrees above the horizontal.
a) find the x and y
7 answers
asked by
C.
12,024 views
a point particle with charge q= 4/5 uC is placed on the x-axis at x=-10cm. A second particle of charge Q is now placed on the
5 answers
asked by
J Velji
2,074 views
Calculate the density in SI units of a solid cube that measures
5 cm on each side and has a mass of 350 g.
7 answers
asked by
meera
1,567 views
A player kicks a football with an initial velocity of 3.00 m/s at an angle of 60.0 above the horizontal. What is the horizontal
4 answers
asked by
Jon
4,653 views
A backpack full of books and an empty backpack are dropped from the same height. If there is no air resistance, which bag will
3 answers
asked by
no name
270 views
Two prospectors are pulling on ropes attached around the neck of a donkey that doesn’t want to move. One
prospector pulls with
4 answers
asked by
Emilie
3,279 views
A large cylindrical water tank 11.5 m in diameter and 13.5 m tall is supported 8.75 m above the ground by a stand. The water
5 answers
asked by
Lindsay
3,664 views
Match the following wave to the correct wave type. **You may use some answers more than once amd some not at all**
Column A 1. A:
1 answer
asked by
kali
224 views
A tank is filled with fresh water until there is a depth of 35 ft. Determine the pressure, psig,
at the bottom of the tank.
3 answers
asked by
Gingener
1,185 views
A car has an initial speed of 25m/s and a constant deceleration of 3m/s^2. Determine thewvelocity of the car when t=4s. What is
5 answers
asked by
HELP
4,791 views
A projectile is fired with an initial speed of 1000 m/s at an angle of 37 degrees above the horizontal. If air resistance is
5 answers
asked by
anonymous
2,795 views
You are walking toward the back of a bus that is moving forward with a constant velocity. Describe your motion relative to the
7 answers
asked by
Twilight lover
10,643 views
Study the image of two people pushing on opposing sides of a dog house at the same time.
Two people pushing on a doghouse. Force
7 answers
asked anonymously
94 views
An electric appliance draws 3 amperes of current when it is connected to a 24-volt source. What is the resistance of this
1 answer
asked by
6
102 views
Review the examples below. Which would be considered an example of convection.
a boiling water on a hot stove b a glass of water
1 answer
asked by
kali
120 views
You are in an egg drop contest which you win by breaking your egg the hardest. You drop your egg off of a 3 story building (12m
4 answers
asked by
satvik
167 views
The cannon on a pirate ships shoots cannon balls with a speed of 350m/s (the muzzle velocity). The cannon can be adjusted to
4 answers
asked by
satvik
171 views
If 5.6 g of aluminum at 65.2 °C is placed in a calorimeter that contains water at 23.5 °C and the temperature of the water
4 answers
asked by
Callie
1,446 views
When you hold a textbook and a pencil, why does the textbook feel heavier than the pencil?(1 point)
A. You can grip the pencil
13 answers
asked by
wiggle
590 views
In 1–2 sentences, describe the factors that affect the current (amperage) in an electric circuit.
4 answers
asked by
the real BARNY THE DINO :)
560 views
A 2.20 kg pendulum starts from a height of 5.00m. It swings back and forth through one whole oscillation but only returns to a
4 answers
asked by
Tyger2020
2,170 views
Wind farms are a source of renewable energy found around the world. The power P (in kilowatts) generated by a wind turbine
7 answers
asked by
Steve
7,292 views
what potential energy is acquired by a block of steel whose mass is 50 kg when it is raised 200 cm?
4 answers
asked by
rachel
794 views
The radius of the earth is approximately 3960 miles, what is the linear speed of a point on the equator in miles per hour. Round
4 answers
asked by
ronneka
7,501 views
1.) a 5.0 kg stone slid up a frictionless ramp that has an incline of 25 degree. How long is the ramp if gravitational potential
5 answers
asked by
lalaglaze
2,478 views
A ball is thrown vertically upward with an initial velocity of 96 feet per second. The distance s (in feet) of the ball from the
4 answers
asked by
danielle
21,514 views
Which situation describes a negative acceleration?(1 point)
A. a bicycle increasing its velocity as the rider pedals harder. B. a
4 answers
asked by
wiggle
713 views
a). What is the wavelengh of a 2.54MHz ultrasound wave travelling through aluminum?(the speed of sound in aluminum is 6420 m/s)
b
5 answers
asked by
joane
4,371 views
In the body, lever systems involve the interaction of __1__, which provide the force, and __2__, which provide the lever arms.
6 answers
asked by
Katie
4,774 views
A simple pendulum of length is oscillating through a small angle θ in a medium for which
the resistance is proportional to the
5 answers
asked by
shasha
2,179 views
The international space station (ISS) orbits Earth at an altitude of
4.08 x 10^5 m above the surface of the planet. At what
7 answers
asked by
Physics
2,995 views
The output voltage of an AC generator is given by Δv = (180 V) sin (70πt). The generator is connected across a 13.0-Ω
4 answers
asked by
Matt Will
8,923 views
Two ice skaters hold hands and rotate, making one revolution in 7.6 s. Their masses are 15 kg and 50 kg, and they are separated
5 answers
asked by
Amber
5,147 views
A 200kg crate us pushed horizontally with a force of 700 N. If the coefficient of friction is 0.20, calculate the acceleratio of
4 answers
asked by
Lena
6,157 views
How much more kinetic energy does a 6-kilogram bowling ball have when it’s rolling at 16 mph 7.1 meters per second than when
3 answers
asked by
Nancy Haymes
251 views
Company X tested its light bulbs to see how long they would last. On a production line, 2,500 bulbs were taken and tested. The
4 answers
asked by
just living :>
212 views
The temperature increased steadily from 6 AM to 2 PM. What will the graph of the data look like?
A. a horizontal line, moving
3 answers
asked by
LowSelf-Esteem
83 views
Use the table to answer the question.
Machine Output Work (J) Input Work (J) A 750 1,500 B 1,000 4,000 C 450 600 D 3,000 5,000
7 answers
asked by
IWannaBeADawg
190 views
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