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Physics
Page 47
Questions (147,130)
In which situation is the magnitude of the total force greater than the magnitude of each of the individual forces? (1 point)
O
5 answers
asked by
Idb
614 views
Mrs. Wilson is driving her car to the store. She drives on a street where the speed limit is 50 mph. Then she turns onto a
4 answers
asked by
no name
309 views
An Olympic bodybuilder lifts a 1325 kg weight a vertical distance of 2.5 m off the ground. What potential energy do the weights
3 answers
asked by
no name
155 views
Two cars of identical mass are approaching the same intersection, one from the south and the one from the west. They reach the
5 answers
asked by
Shaila
1,782 views
the work function for metallic Caesium is 2.14 eV. Calculate the kinetic energy and the speed of the electrons ejected by light
4 answers
asked by
Anonymous
1,301 views
A roller coaster heads into a circular loop with radius 5m. At what minimum speed must the coaster go at the top of the loop to
5 answers
asked by
anonymous
1,711 views
a bomb is dropped drom an airplane at an altitude of 14,400 feet how long would it take to reach the ground? (because the motion
4 answers
asked by
Nancy
1,579 views
A single wave pulse is sent along a thick rope that's tied to a thin rope, which in turn is attached to a wall. Reflection of
4 answers
asked by
Kayla
2,698 views
A rock is thrown upward with a velocity of 18 meters per second from the top of a 27 meter high cliff , and it misses the cliff
5 answers
asked by
Briana
1,272 views
A police officer in a patrol car parked in a 70 Km/h speed zone observes a passing automobile might be intoxicated,the officer
4 answers
asked by
benjamin
4,535 views
i think its B.
Adding a _____________ to an electric circuit would increase the magnetic field around a wire. A. insulator B.
10 answers
asked by
matt
3,474 views
An arrow is horizontally projected from the top of a tower with an initial velocity of 15m/s.if it reaches the ground 7seconds
7 answers
asked by
Sylvester
2,208 views
what happens when a bowl of ice cream is left uneaten on a counter in a warm room
A. heat is transferred from the air to the ice
4 answers
asked anonymously
434 views
A 0.6-g peanut is burned beneath 50 g of water, which increases in temperature from 22degreesC to 50 degreesc. What is the exact
4 answers
asked by
Rachel
3,431 views
A car starting at 12:00 noon travels west at a speed of 30 kph. Another car starting from the same point at 2:00 PM travels
3 answers
asked by
@jayr
1,718 views
In earlier learning sequences we described how a static magnetic field cannot change the speed (and therefore kinetic energy) of
2 answers
asked by
BJ
524 views
A car leaves an intersection after a light turns green. It starts from rest and reaches a speed of 13.4 m/s in 5.0 s. The radius
4 answers
asked by
clara
2,319 views
A 1200 kg car rounds a curve of radius 70m with a banking of 12°. The car is traveling 90 km/h, will a frictional force be
4 answers
asked by
Yinka
4,820 views
A learner asked the following question: What happens to the current in a circuit if the resistors are connected in parallel? she
2 answers
asked by
hope
816 views
A pendulum swings uniformly back and forth, taking 2 seconds to move from the position directly above point A to the position
6 answers
asked by
Christa
2,263 views
A plane has a speed of 250mph and flies with a bearing of N35degE. The wind is blowing from the west at 25 mph with a heading of
4 answers
asked by
Nancy
1,944 views
A ceiling fan is turned on and a net torque of 1.6 N·m is applied to the blades. The blades have a total moment of inertia of
5 answers
asked by
yoni
2,874 views
Which statement best describes the refraction of light as it moves from air to glass? (1 point) Light undergoes diffraction due
4 answers
asked by
anonymous
1,117 views
A 10 g bullet is fired into, and embeds itself in, a 2 kg block attached to a spring with a force constant of 19.6 n/m and whose
4 answers
asked by
Dee
4,145 views
A student wanted to test how the mass of a paper airplane affects the distance the paper airplane will fly. Paper clips were
4 answers
asked by
Lka
1,068 views
An empty relative density bottle weighs 25g.it weighs 65g when filled with a liquid and 75g when with water.caculate the density
9 answers
asked by
Samuel
5,297 views
A transverse wave has an amplitude of 5 cm, a frequency of 60 Hz and a distance from crest to next trough of 15 cm. Identify the
5 answers
asked by
ben
1,727 views
p=14.63⋅0.8
Atmospheric pressure, measured in pounds per square inch p, s, i is the force exerted by Earth's atmosphere over a
6 answers
asked by
ryn
4,206 views
A coconut of mass 2kg is on a tree of 5m tall; determine the potential energy of this height Take g=10ms^-2.
7 answers
asked by
Elvis
2,346 views
A 500-N tightrope walker stands at the center of the rope such that each half of the rope makes an angle of 10.0◦ with the
4 answers
asked by
Nina
6,529 views
What is the main difference between mechanical and electromagnetic waves?
A. Mechanical weaves involved transfers energy;
49 answers
asked by
I need help
21,807 views
Find the exact ratio of the equator to the distance around the Earth at latitude 45 degrees north. (Assume the Earth is a
5 answers
asked by
simone
2,651 views
A girl of mass 48.0 kg is rescued from a building fire by leaping into a firefighters net. The window from which she leapt was
7 answers
asked by
Anonymous
6,447 views
a ball is thrown straight upward and returns to the thrower's hand after 3.00s in the air. A second ball is thrown at an angle
4 answers
asked by
tani
20,062 views
the height that a ball bounces varies directly as the height from which it is dropped. A ball dropped from a height of 20cm
4 answers
asked by
lisa
3,010 views
An octopus propels itself through the water by ejecting water through a funnel in its body. How does this demonstrate Newton’s
5 answers
asked by
Ieasha30
1,167 views
A baseball is thrown straight up from the rooftop 192 feet high. The function s(t)=16t^2+-64t+192 describes the ball's height
4 answers
asked by
Anonymous
2,690 views
What does an object’s weight measure?(1 point)
the amount of matter the object contains the amount of interaction between the
4 answers
asked by
@@@
788 views
Two students pulling a bag of volleyball equipment. The friction for between the bag and the floor is 15 N. What is the net
4 answers
asked by
Martin
3,217 views
If an object is dropped from a height of 200 feet, the function h(t) = -16t^2 + 200 gives the height of the object after t
12 answers
asked by
Anonymous
9,242 views
A ladder 10 m long rests on horizontal ground and leans against a
vertical wall. The foot of the ladder is pulled away from the
5 answers
asked by
Grant
5,970 views
Which example represents a class 2 lever?
a car door being opened and shut***** tweezers plucking hairs salad tongs picking up
5 answers
asked by
htsrhtdyjy
1,500 views
A boy of Mass 20kg stands on a building floor 12m above the ground level. Calculate his potential energy.
7 answers
asked by
Lawal
868 views
an object has a mass of 1285 g. deermine the weight of the object in newtons.
7 answers
asked by
yvonne gray
3,553 views
Me, again...
Please help me. Thank you. Assume a plane is flying directly north at 200 mph, but there is a wind blowing west at
4 answers
asked by
Lizzie098
3,753 views
Calculate the heat required to raise the temperature of 10kg of copper from 20°C to 30°C (S.H.C. of copper = 400J/kg k).
5 answers
asked by
Ebenezer
2,176 views
An alien spaceship is revolving around a spherical asteroid in a very low circular orbit. The period of revolution of the
5 answers
asked by
Freddy
2,760 views
A rider with his bike, weighing a total of 300 kg jumps off a sloped ramp with a speed of 5.5 m/s. How high will the biker jump
5 answers
asked by
tman
1,343 views
If the air temperature is the same as the temperature of your skin (about 30.0 C), your body cannot get rid of heat by
5 answers
asked by
Jamie
5,090 views
A wooden block slides 90cm in half a minute. Find it's mean speed in cm/s
4 answers
asked by
Anonymous
622 views
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