Answer:
b. Its horizontal velocity component is the same as it was just as it was launched
Explanation:
When the rock is thrown from the upper edge of the cliff, at some angle with the horizontal. There is no any acceleration in horizontal direction, therefore, the horizontal velocity remains the same, whereas there is a constant downward acceleration of the magnitude g= 9.81 m/s^2. This causes the increase in vertical velocity of the rock in downward direction.
therefore true statement just before it hits the ground
b. Its horizontal velocity component is the same as it was just as it was launched.
Answer:
The two different ways to measure gravitational potential energy is listed below:
Explanation:
- To measure the gravitational potential energy of the ball dropped from certain height we can use the formula as:
PE= mgΔh
where,
m= mass of the ball
g= gravity
Δh= change in height
- The second way is to follow the principal as:
Loss in PE = Gain in KE
∴ -ΔPE = ΔKE
- Height and mass is the major element that determines the gravitational potential energy of any object.
Well since staurns gravity is 10.44 multiply the elephants weight times the gravity
250x10.44 you will get 2610
hope i helped add me
Dosvedanya :)
Answer:
The period of the orbit is 12163.649 seconds.
Explanation:
What quantity are you looking for? I'll assume it's the orbital period.
The period, P, of an orbit in seconds is found from
P = 2π √[a³/(GM)]
where
a = the semimajor axis of an elliptical orbit, or the radius of a circular orbit
G = 6.67428e-11 m³ kg⁻¹ sec⁻²
M = the sum of the masses of Mars and the satellite
The mass of the satellite is presumably negligible.
M = 6.4191e+23 kg
a = 1.6 Rmars = 1.6 (3.397e+6 meters) = 5435200 m
Therefore,
P = 12163.649 sec