A 1.0 kg ball is thrown into the air with an initial velocity of 30 m/s. What is the kinetic energy of the ball?

Answers

Answer 1

Answer:

Answer:

If this helps, to work out the kinetic energy the formula is K (stands for kinetic energy) = 1/2 (half of) mass and velocity. So the answer is 450 joules.

Explanation:

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A block of metal initially at 25°C is submerged in water initially at 75°C in a coffee cup. Which of the following is true? a. The final temperature of the coffee cup will be less than 20°C. b. The final temperature of the coffee cup will be higher than 25°C but less than 75°C. c. The final temperature of the coffee cup will be more than 80°C. d. The final temperature of the coffee cup will be 80°C.
glass is mostly made of silica,which is found in sand. if lead is added to silica to make a crystal vase, the lead is known as the
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What is the difference between mass and weight

Answers

Mass is a property of an object. It doesn't change, no matter where the object is.

Weight is the gravitational force between two objects. It depends on the masses
of both objects, and also on the distance between their centers, so it changes,
depending on the mass of the OTHER object involved, and on the distance
between them.

Adding an organism to a food chain does not affect the other members of the food chain, but removing an organism does.

Answers

This is false. Say you have a food chain where a monkey is the top predator. Then you introduce something that eats what the monkey does. The monkey populations will plummet and that means that the things they eat will start to get more numbers. Adding and subtracting animals throws everything out of order.

Removing any level from an ecosystem disrupts a delicate balance that may have ;and a diverse, with many levels and intricate relationships between organisms. More predators kill more prey, which, along with food scarcity, decreases the an attempt to control the population, but it had no effect on habitat degradation.

Which statement best describes one main idea of Of Plymouth Plantation?

Answers

The correct answer for this question is this one: "The Pilgrims found themselves in a hostile environment with only their religious faith to sustain them." This is the best statement that best describes one main idea of Of Plymouth Plantation.

An unknown fiber sample is found at a crime scene. Forensic scientists measure its index of refraction and obtain a value of 1.48. A suspect's jacket was made of Dacron polyester, his jeans were made of cotton, his shirt was made of rayon, and his tie was made of acetate. Which piece of clothing may match the fiber at the crime scene?Question 12 options:

tie

shirt

jeans

jacket

Answers

The closest refractive index to the one observed is that of rayon, about 1.51. Therefore, the fiber is likely from the suspect's shirt.

Answer:

shirt

Explanation:

shirt

Oceanic electric fields produce electric currents. True False

Answers

Wow ! That's wild !
I never heard of an "oceanic" electric field before.

Electric currents are the flow of great numbers of electrons
inside a conducting material. What makes them move is
an electrostatic or magnetic field inside the conductor.

Things that happen in the ocean produce ocean currents,
not electric ones.

What determines the composition of a rock

Answers

Is determined by the percent of constituent of minerals and elements contained within it.

Composition of a rock is determined by the percent of constituent of minerals and elements contained within it.

Explanation:

The composition of a rock is decided by the % of the constituent minerals and components contained inside it.

The minerals that form up rocks have outlined chemical compositions and rigid atomic structures. once daylight strikes the rock's surface, the composition and atomic structure of the various minerals management the wavelengths they absorb or replicate.

Other Questions

Objects with masses of 160 kg and a 460 kg are separated by 0.440 m. (a) Find the net gravitational force exerted by these objects on a 51.0 kg object placed midway between them. magnitude N direction -Select- B (b) At what position (other than infinitely remote ones) can the Sko kg object be placed so as to experience a net force of zero? m from the 460 kg mass

What is the total energy of a 175,000kg shuttle orbiting the Earth at 600km above Earth's surface?

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Humpty Dumpty (12 kg) sat on a wall (2 m high). What was his potential energy, before his great fall? A. 235.2 J B. 235.2 N C. 24 J D. 246.1 W