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Physics
High School
Qu bng 200g chuyn ng vi v 4m/s p vo tng ri bt ra ngc chiu vi cng tc bin thin ng lng ca qu bng l
Physics
College
4. A ball is thrown vertically upward from the ground with a velocity of 30m/s. (a) how long will it take to rise to the highest point? (b) How high does the ball rise? (c) How long after projection will the ball have a velocity of 10m/s upward? A velocity of 10m/s downward? (d) When is the displacement of the ball zero? (e) When is the magnitude of the balls velocity equal to half its velocity of projection? (f) When is the balls displacement equal to half the maximum height to which it rises? (g) What is the magnitude and direction of the acceleration while the ball is moving upward? While moving downward? While at the highest point?
Physics
College
A ball is thrown from the ground with velocity of 30m/s after what time has the ball has velocity of 10m/s down ward?
Physics
High School
In a collision, the human body will strike the seatbelt, steering wheel, dash or windshield at? Group of answer choices only 10 to 15 miles per hour the same speed as the vehicle twice the speed of the vehicle one half the speed of the vehicle
Physics
College
Twin skaters approach each other with identical speeds. Then, the skaters lock hands and spin. Calculate their final angular velocity, given each had an initial speed of 2.50 m/s relative to the ice. Each has a mass of 70.0 kg, and each has a center of mass located 0.800 m from their locked hands. You may approximate
Physics
High School
the splitting of white light into its constituent colours is called
Physics
College
Which nucleus completes the following equation?39 17 CI-> 0 -1 e+?
Physics
High School
The lever which makes our work easier only by accelerating the rate of work is:
Physics
High School
how long do a Tortoise live in the earth?
Physics
High School
a. A man of 100 kg mass is standing on the surface of the earth of mass 6 1024 kg and radius 6400km. Calculate the gravitational force between them. [Ans: 977.05 N]
Physics
College
A brass road is 2cm long at instance to what is the lense for a temperature rise of 100k, If the expansivity of brass is 18x10^-6/k^-1
Physics
High School
Tnh cng ca dng in
Physics
High School
Las carreras de velocidad pura en el atletismo son:A. Un ladrn perseguido por la policiaB.100 y 200 mts planosC. salir corriendo cuando la mama lo va a castigarD.N.A
Physics
College
Using this information...Determine the velocity of the pebble as it passes over the top of the tree.
Physics
College
The time delay between transmission and the arrival of the reflected wave of a signal using ultrasound traveling through a piece of fat tissue was 0.13 ms. At what depth did this reflection occur? (The average propagation speed for sound in body tissue is 1540 m/s)
Physics
College
What is the author's MAIN purpose for including information about viruses? D to suggest that it could be dangerous for explorers to bring home life from other planets B to provide an example that illustrates the difficulty of defining life in some cases on Earth to demonstrate the need for extra protective gear when explorers go into space D to highlight the differences between natural life and artificial life mixed in a lab Back Submit
Physics
High School
Una partcula efecta un MAS cuya ecuacin es: x=0,3 cos (2t + /6) m. Determinar: Amplitud, frecuencia angular, fase inicial, periodo, frecuencia de oscilacin y posicin en t=0,25 s
Physics
College
which one of the following is a product of an acid base reaction? A. Base B. Acid C. Salt D. Fire
Physics
High School
Two rams run toward each other. One ram has a mass of 44 kg and runs south with a speed of 6 m/s, while the other has a mass of 50 kg and runs north with a speed of 3 m/s. What will the momentum of the system made up of the two rams be after they collide? Assume the total momentum of the system is conserved. A. 114 kg-m/s southB. 414 kg-m/s south C. 414 kg m/s north D. 114 kg-m/s north
Physics
High School
A baseball pitcher throws a 0.14 kg ball toward a batter who is 18 m away.The ball is traveling at 40 m/s when it leaves the pitcher's hand. What is theball's kinetic energy at this point?A. 112 JOB. 224 JC. 12JD. 3 JSUBMIT
Physics
College
calculate the force on an object with mass of 50kg and gravity of 10
Physics
College
The water evaporated. How did that help ?
Physics
College
Infrared and ultraviolet waves have different frequencies.Both types of wave can have harmful effects on human beings.Describe the harmful effects of infrared and ultraviolet waves, relating them to the frequencies of the waves.
Physics
High School
the mass of an object is 45 kg and it has a density of 5 gram per centimetre cube what is the volume
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