All categories

2 years ago

Need help with this question!

Physics

1 answer:

statuscvo [17]2 years ago

7 0

Answer:(note that values will be on top in small)

cobalt :- 60Co

potassium :- 40K

neon :- 24Ne

lead :- 208Pb

You might be interested in

Which is not an example of how an object gains elastic potential energy by stretching?

lora16 [44]

C because you don’t put a force of which you choose and the force wouldn’t be strong enough

4 0

3 years ago

Describe two energy conversions that take place when you warm a cup of cocoa in a microwave oven.

vampirchik [111]

1.)the microwaves are absorbed by the water molecules in the cocoa. this causes the water molecules to vibrate very fast.

2.)this fast vibration causes the molecules to heat themselves up by means of bumping into each other (friction).

7 0

3 years ago

Read 2 more answers

During the power stroke energy released by combustion generates the force that:_______.

Inessa05 [86]

Explanation:

An IC engines means an Internal Combustion engine. Here, the combustion takes place in side a chamber or a cylinder internally, hence it is known as internal combustion engine.

Combustion is the process where oxygen reacts with the fuel and it burns to produce a large amount of force and heat. In each revolution of the crank, the engine creates a power stroke when the piston goes from the bottom dead center to the top dead center.

During each power stroke, the energy released forces the piston down and the crankshaft is rotated.

8 0

3 years ago

The coordinates of a bird flying in the xy plane are given by x(t)=αt and y(t)=3.0m−βt2, where α=2.4m/s and β=1.2m/s2. Calculate

yuradex [85]

The derivative of the function space as a function of time is equal to a function of speed as a function of time.

$x(t)=2.4t \\ \frac{x(t)}{t}=t \\ v_{x}(t)=t \\ \\ y(t)=3-1.2\times t^2 \\ \frac{y(t)}{t}=1.2\times2t \\ v_{y}(t)=2.4t$

The velocity vector is given by the vector sum of the velocities of both axes.

$v_{R}^2(t)=v_{x}^2(t)+v_{y}^2(t) \\ v_{R}^2(t)=(t)^2+(2.4t)^2 \\ \boxed {v_R(t)=2.6t}$

If you notice any mistake in my english, please let me know, because I am not native.

4 0

4 years ago

Read 2 more answers

Sabrina decided to start selling lemonade on her street. The other kids in the neighborhood noticed that Sabrina was making a lo

suter [353]

Answer:

e. Decreased; Increased

Explanation:

The market equilibrium refers to the condition in which the price and the quantity are in equilibrium if the conditions of supply (what the producers offer) and demand (what the consumers buy) don't change.

In this case we have that as the other kids decide to sell more lemonade the amount of lemonade is going to increase (equilibrium quantity) and because of this the price is going to decrease (equilibrium price).

Then when the other kids open theirown lemonade stand, the equilibrium price <u>descreased</u> and the equilibrium quantity <u>increased.</u>

6 0

4 years ago