Answer:
11760J
Explanation:
Given parameters:
Height of hill = 30m
Weight = 40kg
Unknown:
Gravitational potential energy = ?
Solution:
To find the gravitational potential energy, it is the energy due to the position of a body;
G.PE = mgh
m is the mass
g is the acceleration due to gravity
h is the height
Now insert the parameters and solve;
G.PE = 40 x 9.8 x 30 = 11760J
Answer:
okay sooo the weight is: 294 n
the normal force is 286 n
the acceleration is: -0.38 m/s²
Answer:
1 Ns
Explanation:
Velocity = Displacement / time taken
v = 5/25 ⇒ v = 0.2 ms⁻¹
Momentum = mass × velocity
= 5 × 0.2 = 1 Ns
Hello. You did not present the combinations the question refers to, which makes it impossible for this question to be answered accurately. However, I will try to help you in the best possible way.
To present the total force you must use the following formula: Mass x Acceleration.
To calculate the total mass, you must use the formula: Force / acceleration.
To calculate the acceleration you must use the formula: Force / mass.
Answer:
C. Hackers might steal it for personal gain.
Explanation:
One of the disadvantages of stored digital data is that hackers might steal it for personal gain.
Most digitally stored data can be accessed by hackers who writes some malicious instructions in order to gain access to these stored information.
- Also, some of the digitally stored data can be come corrupted due to viruses.
- When the keys and passwords used to encrypt a digital data is mistakenly released, it can cause serious harm to the stored data.
- Hackers makes use of flaws in the program back end to their own use and benefit.
