Ask question

Ask question

All categories

2 years ago

14

You spy on an anchor on the bottom of a lake. What is the direction and amount of force the water exerts on it: a) zero

1 answer:

vaieri [72.5K]2 years ago

5 0

Answer:

c) up, less than the weight of the anchor

Explanation:

An object floats when the weight of the water the object displaces is equal to the weight of the object. In this case the weight of the anchor and the weight of the water it displaces is not the same so it sinks. Buoyancy is the force that acts on body when it is in water.

When buoyancy is less than the force that the object is generating due to gravity the object sinks. Buoyancy always acts up.

You might be interested in

Draw a simple circuit that lights up a bulb.

coldgirl [10]

Hope this helps

Ps- U can pick between these two pictures

Please mark as brainliest

5 0

2 years ago

Read 2 more answers

4. Calculate the total resistance for two 180 ohm resistors connected in<br> parallel

solmaris [256]

Answer:

90 ohms

Explanation:

1/r = 1/180 + 1/180

1/r= 2/180

take the reciprocal of 2/180 which is 180/2 and its 90 ohms

3 0

2 years ago

The activity of a radioisotope is found to decrease 40% of its original value in 2.59 x 10 s.

Rainbow [258]

Answer: $0.0353\ s^{-1}$

Explanation:

Given

Radioactive material is found to decrease 40% of its original value in $2.59\times 10\ s$

Sample at any time is given by

$N=N_oe^{-\lambda t}$

where, $\lambda=\text{decay constant}$

Put values

$\Rightarrow 0.4N_o=N_oe^{-\lambda\cdot 2.59\times 10}\\\Rightarrow 0.4=e^{-\lambda\cdot 2.59\times 10$

Taking natural logarithm both side

$\Rightarrow \lambda=\dfrac{\ln 2.5}{25.9}\\\\\Rightarrow \lambda =0.0353\ s^{-1}$

8 0

2 years ago

Someone please help me will give BRAILIEST!!!!!

Alex777 [14]

Uranium is the right answer. Scientists use 5 percent of the uranium after the bomb is refused to create stronger and better nuclear bombs.

6 0

3 years ago

The sun produces energy by forming in its core

Shalnov [3]

The Sun <span>produces energy by forming "Helium" in its core by the process of "Nuclear fusion"

Hope this helps!</span>

7 0

2 years ago