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Physics
Physics
College
John's home had 20 pounds of condiments. sugar made up 40% of the condiments. Salt made up the rest. After some sugar was used, sugar made up 25% of the condiments. How many pounds of sugar were used? pounds of sugar
Physics
High School
A 213 kg crate slides 7. 6 m until coming to a stop after being pushed by a large man. The effective coefficient of kinetic friction between the crate and the surface is 0. 37. Calculate the work done by friction.
Physics
High School
nancy is in her early 60s and nervous about growing old because she doesnt want to be limited in her daily functioning or lose her memory or judgement. how might you reassure nancy about her fears?
Physics
High School
When measuring the mass of a condensed volatile liquid collected, you need to correct its mass by the mass of the air lost in the process.
Physics
High School
How do you solve elastic potential energy problems?
Physics
High School
a magnitude 8 earthquake occurred in western quakesville in 1857. if the largest aftershock is one m7 event, how many magnitude 6 aftershocks are expected?
Physics
Middle School
Choose 1 answer: (Choice A) Acceleration is greater in magnitude at point B, and displacement is lesser at point B (Choice B) Acceleration is greater in magnitude at point C, and displacement is greater at point B (Choice C) Acceleration is lesser in magnitude at point C, and displacement is lesser at point C (Choice D) Acceleration is lesser in magnitude at point B, and displacement is greater at point C
Physics
College
g a -4.00 nc point charge is at the origin, and a second -5.50 nc point charge is on the x-axis at x = 0.800 m.
Physics
High School
(i) what happens to the magnitude of the charge on each plate of a capacitor if the potential difference between the conductors is doubled? it becomes four times larger. it becomes two times larger. it is unchanged. it becomes one-half as large. it becomes one-fourth as large. (ii) if the potential difference across a capacitor is doubled, what happens to the energy stored? it becomes four times larger. it becomes two times larger. it is unchanged. it becomes one-half as large. it becomes one-fourth as large.
Physics
High School
a water wave passes a boat every 35 seconds. what is the frequency of the waves in hz? round your answer to 2 decimal places.
Physics
High School
a 0.240-kg billiard ball that is moving at 3.00 m/s strikes the bumper of a pool table and bounces straight back at 2.40 m/s. how much kinetic energy in joules is lost during the collision?
Physics
High School
Deep surveys of the universe indicate that the largest structures in space are about 50 Mpc in size. (T/F)
Physics
College
a 0.5 kg car is moving at a constant velocity 5 m/s. What is the kinetic energy of the car?
Physics
College
Suppose that the period is T. Which of the following points on the t axis are separated by the time interval T?K and LK and MK and PL and NM and P
Physics
High School
when making batter to use for frying foods, which liquid will require the most amount of starch in order to thicken the batter to a good consistency?
Physics
High School
What is the change in internal energy if 20j of heat is released?
Physics
High School
what gauge pressure in the water mains is necessary if a firehose is to spray water to a height of 45 mm ?
Physics
High School
light of wavelength 587.5 nm illuminates a slit of width 0.75 mm. (a) at what distance from the slit should a screen be placed if the first minimum in the diffraction pattern is to be 0.85 mm from the central maximum? (b) calculate the width of the central maximum
Physics
High School
what is the highest spectral order that can be seen if a grating with 1850 slits per cm is illuminated with 594 nm laser light? assume normal incidence.
Physics
High School
light striking a metal surface causes electrons to be emitted from the metal via the photoelectric effect. part a in a particular experiment to study the photoelectric effect, the frequency of the incident light and the temperature of the metal are held constant. assuming that the light incident on the metal surface causes electrons to be ejected from the metal, what happens if the intensity of the incident light is increased?
Physics
High School
at what displacement of a sho is the energy half kinetic and half potential? express your answer in terms of aaa .
Physics
High School
if the net force of a system is a non-zero constant and the mass decreases, what must be true about the acceleration?(1 point)
Physics
High School
a ferry boat is 4.00 m wide and 6.00 m long. when a large loaded truck pulls onto it, it sinks 4.00 cm in the water. what is the weight of the truck?
Physics
High School
a 10:0 kgmass starts at the top of an incline that is 8:0 mlong and makes an angle of 400above the horizontal. as it slides down, there is a constant frictional force of 23:8 n. what is its speed at the bottom?
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